AA/AB-Series Analog Magnetic Sensors

AA/AB-Series Analog Magnetic Sensors

Equivalent Circuit Features
• Magnetometer and gradiometer configurations
V+ (Supply) • Field ranges from <<0.1 mT to >400 mT
• Ultrasensitive, high-field, and low-hysteresis versions
OUT-
• Wheatstone bridge analog outputs
• Operation to near-zero voltage
OUT+ • Up to 1 MHz bandwidth
• Up to 150°C operating temperature
• ULLGA4, TDFN6, MSOP8, and SOIC8 packages

V- (GND)

Applications
Idealized Transfer Functions • Motion, speed, and position control
• Low-field sensing
Output • Motor commutator sensors
Output
• Noncontact current sensing

Field Description
Gradient
Field NVE’s analog GMR sensors have high sensitivity, excellent
AA-Series AB-Series temperature stability, and small size. Their versatility and
Magnetometer Gradiometer wide sensing range makes them an excellent choice for a
Transfer Function Transfer Function variety of analog sensing applications including industrial
and automotive position, speed, and current sensors.

The sensors are configured as inherently temperature-

compensating Wheatstone bridges.

AA-Series sensors are magnetometers, which detect absolute

magnetic field. AB-Series sensors are differential
gradiometers, which detect field gradients.

Three magnetometer subtypes are available: the standard

AA-Series; the ultrasensitive “H” subtype; the high-field,
kilooersted range “K” subtype, and the low-hysteresis “L”
subtype.

Packages are as small as an ultraminiature 1.1 x 1.1 mm

ULLGA4.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units

AAxxx/ABxxx/AAL002 24
Supply voltage AAHxxx/AAKxxx/ABHxxx/ VCC Volts
12
AAL004/AAL024
AAxxx/AAKxxx/ABxxx/AALxxx 125 °C
Operating temperature −50
AAHxxx/ABHxxx 150 °C
AAxxx/AAKxx/ABxxx/AALxxx −65 135
Storage temperature °C
AAHxxx/ABHxxx −65 150
ESD (Human Body Model) 400 Volts
Applied magnetic field H Unlimited Tesla
Voltage from sensor connections to center pad
63 Volts DC
(applies to TDFN package only)

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Operating Specifications

Parameter Symbol Min. Typ. Max. Units Test Condition

AAHxxx/AAKxxx/ Maximum
12
Supply voltage ABHxxx/AAL004 VCC <1 Volts limited by power
AAxxx/ABxxx/AAL002 24 dissipation
AAKxxx −40 85
Operating TMIN;
AAxxx/ABxxx/AALxxx 125 °C
temperature TMAX −50
AAHxxx/ABHxxx 150
Electrical AAxxx/AAKxxx/AALxxx/ABxxx −4 +4
VO mV/V
offset AAHxxx/ABHxxx −5 +5
AAxxx/ABxxx 60
Output at
AAHxxx/ABHxxx 40
maximum VOUT-MAX mV/V
AAKxxx 19 25
field
AALxxx 45
AAxxx/AAKxxx/ABxxx/AAL002 2
Nonlinearity %
AAHxxx/ABHxxx/AAL0x4 4
Unipolar field
AAHxxx/ABHxxx 15
% sweep
Hysteresis AAxxx/AAKxxx/ABxxx 4
AALxxx 2
Resistance tolerance −20 +20 % 25°C
AAxxx/ABxxx +0.14
Resistance vs.
AAHxxx/AAKxxx/ TCR %/°C No applied field
temperature +0.11
AALxxx/ABHxxx
AAxxx/ABxxx +0.03
AAHxxx/ABHxxx -0.28 Constant-current
TCO-I %/°C
AAKxxx +0.13 supply
Output AALxxx −0.28
temperature AAxxx/ABxxx −0.1
coefficient AAHxxx/ABHxxx -0.40 Constant-voltage
TCO-V %/°C
AAKxxx −0.3 supply
AALxxx −0.4
AAKxxx TCHSAT −0.19 %/°C
AAKxxx 50 kHz
Frequency AAxxx/AAHxxx 75 kHz −3 dB
fMAX DC
bandwidth AALxxx 500 kHz bandwidth
ABxxx/ABHxxx 1 MHz
Junction– ULLGA4 (-14 suffix) 500
Ambient TDFN6 (-10 suffix) 320
θJA °C/W
thermal MSOP8 (-00 suffix) 320
resistance SOIC8 (-02 suffix) 240 Soldered to
double-sided
ULLGA4 (-14 suffix) 100 board; free air
Power TDFN6 (-10 suffix) 500
PD mW
Dissipation MSOP8 (-00 suffix) 500
SOIC8 (-02 suffix) 675

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Operation

Sensor Subtypes
There are four AA/AB-Series subtypes, as summarized in the table below. “H” subtypes are designed for very high sensitivity, and
“K” types have low sensitivity and high saturation for high-field sensing. “L” types offer low hysteresis. AAH-Series parts also
have a 150°C maximum temperature specification.

AAxxx/ AAHxxx/
Parameter
ABxxx ABHxxx AAKxxx AALxxx
Field Sensitivity High Very High Low High
Operating Field Range High Low Very High Medium
Hysteresis Medium High Medium Low
Max. Temperature High Very High Commercial High

Magnetometer Operation
AA-Series sensors are magnetometers, which detect the absolute magnetic field.

Direction of Sensitivity
Unlike Hall effect or other sensors, the direction of sensitivity of GMR sensors is in the plane of the package, which more
convenient for many applications. Two permanent magnet orientations that will activate the sensor are shown in Figure 1:

Figure 1. Planar magnetic sensitivity.

Omnipolar
AA-Series sensors are “omnipolar,” meaning the output is equally sensitive to either magnetic field polarity and the output is
always a positive voltage:
Output

Field

Figure 2. The omnipolar response of AA-Series sensors.

Standard and Cross-Axis Axis Directional Sensitivity

The standard axis of sensitivity is along the part axis, but there are some parts available with cross-axis sensitivity, and AAKxxx
sensors are not directionally sensitive in the IC plane, and are therefore sensitive in both standard and cross-axis axis directions.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Standard Sensitivity
Cross-Axis Sensitivity

Figure 3. Standard versus cross-axis-sensitivity for AA-Series sensors.

Gradiometer Operation
AB-Series sensors are differential gradiometers that reject common mode magnetic fields, making them ideal for high magnetic
noise environments such as near electric motors or current-carrying wires. The devices are sensitive to a field gradient along the
part axis.

The figure below shows a typical gradiometer response:

Sensor Output (mV differential)

50

25

Pin 4 direction

Pin 1 direction

-25

-50

Magnetic Field Gradient

Figure 4. Typical AB-Series gradiometer response.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Typical Performance Graphs

Figures 5–7 show the response of three types of high-sensitivity models. The standard version, the AA002, has excellent
temperature stability, especially with constant-current drive. The AAH002 has very high sensitivity but more temperature
dependence, and the AAL002 offers low hysteresis at the expense of more temperature dependence:

-4 0C

0. 3 -40C
0. 3
25C
25C

Sensor Output (V)

Sensor Output (V)

85 C
12 5C 85 C

12 5C

0. 2 0. 2

0. 1 0. 1

0 0
- 20 0 20 - 20 0 20
App lied Mag netic F ield (Oe) App lied Mag netic F ield (Oe)

Figure 5a. Typical AA002 output Figure 5b. Typical AA002

with 1 mA constant-current drive. output with a 5V supply.

0.4 0.4
-4 0C
Sensor Output (V)
Sensor Output (V)

-40C
0. 3 0. 3
25C
25 C

85 C
85 C
0. 2 0. 2
12 5C 12 5C

0. 1 0. 1

0 0
- 20 0 20 - 20 0 20
Applied Mag netic Field (Oe) Applied Magnetic Field (Oe)

Figure 6a. Typical AAH002 output Figure 6b. Typical AAH002

with 2.28 mA constant-current drive. output with a 5V supply.

-40C

-40C
0.3
0.3
Sensor Output (V)
Sensor Output (V)

25C
25C

85 C
0.2
0.2 85 C

12 5C
12 5C

0.1 0.1

0 0
- 30 0 30 - 30 0 30
App lied Mag netic Field (Oe) App lied Mag netic Field (Oe)

Figure 7a. Typical AAL002 output Figure 7b. Typical AAL002

with 1 mA constant-current drive. output with a 5V supply.
6

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Figure 8 shows the typical ouput of an AAK001 high-field sensor. The sensor responds from zero field to 400 mT (4 kOe), and is
are highly linear from (40 to 250 mT) (400 to 2.5 kOe). The saturation field is dependant on temperature, but sensitivity is quite
stable with temperature.
30
-50°C

25 -25°C

25°C

Output (mV/V)
20
75°C

15

10

0
-10 -5 0 5 10

Applied Field (kOe)

Figure 8. AAK001 high-field sensor output.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Illustrative Applications

Traditional Differential Amplifier

Traditional differential amplifiers use low-cost op-amps to provide a single-ended analog output. The circuit below has a gain of
20, which provides a full-scale output at slightly less than the sensor’s saturation. A low-cost, low bias current op amp allows large
resistors to avoid loading the sensor bridge. The 250 KΩ input resistors are 100 times the 2.5 KΩ sensor output impedance to
avoid loading.

AA002 Sensor 2.7-16V

5M
OUT- 1
-
OUT+ TLV271
5
+ 20(VOUT+ - VOUT- )
250K

4
5M

250K

Figure 9. Traditional op-amp differential amplifier.

Sensor Instrumentation Amplifier

Instrumentation amplifiers such as the INA826 are popular bridge sensor preamplifiers because they have a low component count
and have excellent common-mode rejection ratios without needing to match resistors. These amplifiers can run on single or dual
supplies. AC coupling can be used for small, dynamic signals.

The circuit below has a gain of 20. The general equation for the output voltage is:

VOUT = (1+ 49.4K / RG)VIN + VREF ; VIN = VOUT+ − VOUT-

Sensor 3-24V

RG=
2.6K
+
20 x VOUT
REF
- INA826

Figure 10. Single-ended analog sensor instrumentation amplifier.

Note that the instrumentation amplifier has a minimum output of 0.1V, so to detect very low fields on a single supply, an offset can
be provided by using a non-zero VREF.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Constant-Current Sensor Drive

Using a constant current rather than conventional constant voltage sensor supply can significantly improve temperature stability of
AAxxx/ABxxx sensors. AA00x sensors, for example, have an output temperature coefficient (TCO-I) of 0.03%/°C with constant
current, versus −0.1%/°C with constant voltage (TCO-V).

A simple constant-current supply is illustrated below:

3-16V

10K
VDD
VDD/2 + = VDD/2R cc
TLV271
- V+
10K
OUT-
OUT+

V-

6K Rcc
AAxxx/ABxxx

Figure 11. Constant-current supply.

The supply current for the circuit above is Vcc/2Rcc. Rcc can be set to the maximum sensor bridge resistance (e.g., 6 KΩ for many
sensors) to provide the highest possible output without saturating the op-amp. The sensor will be driven with 1 mA for a 12 V
supply in the circuit above. Op-amp or instrumentation amplifiers such as those illustrated in Figures 9 and 10 can be used with
constant-current supplies to provide an amplified, single-ended output.

Variable Threshold Magnetic Switch

NVE offers AD-Series factory-set GMR Switches, but AA-Series analog sensors can be used for special thresholds or hysteresis,
or for variable thresholds. In this circuit, the threshold is varied by changing RG, which sets the gain of the differential amplifier.
The 1 MΩ resistor sets the threshold hysteresis:
3-5.5V

AA-Series Sensor
8

5 100K
240K
1M

4 + OUT
+ RG=
10K
1nF -
REF MCP6541
- INA826 50K
100K
1nF

Figure 12. Variable threshold magnetic switch.

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

LED Field-Strength Indicator

The op-amp circuit in Figure 13 below can be used to change the brightness of an LED to indicate magnetic field strength
at a glance:
3V-16V
RLED =
VSENSOR-MAX / ILED-MAX
AAxxx
AAxxx -
VDD 2 mA
max.

+
TLV272 -
VOUT-MAX 50K
Offset +
- + GND

Figure 13. LED brightness indicates the magnetic field.

The LED current is proportional to the sensor output:

ILED = (VOUT+ − VOUT- ) / RLED
The maximum LED current can be set to the maximum sensor output. For example, for an AAK001, typical VOUT-MAX is 25 mV/V,
so for a three-volt supply the maximum is approximately 75 mV. For a high-efficiency with a forward current of 2 mA,
RLED = 75 mV / 2 mA = 38Ω.

The 50 KΩ potentiometer is optional, to correct for sensor offset or to set the minimum field to turn on the LED.

The 16-volt maximum supply voltage noted in Figure 13 is limited by the op-amp selected, but note that some sensors have a
12-volt maximum supply rating. The three-volt minimum supply is to provide enough voltage to turn on the LED; the sensors can
operate on lower voltages.

Noncontact Current Sensing

AA-Series sensors are often used to measure the current over a circuit board trace. The sensor measures the current by detecting
the magnetic field generated by the current through the trace.

The AAL024 is ideal for this application because its cross-axis sensitivity provides sensitivity to a current trace directly under the
part, and its low hysteresis provides repeatability. The AA003-02 is popular for overcurrent protection where hysteresis is needed
and high accuracy is not required.

Typical current sensing configurations are shown below:

Figure 14a. 0.09" (2.3 mm) trace Figure 14b. 0.05" (1.3 mm) trace Figure 14c. Five turns of
(0 – 10 A with an AA003 sensor) (0 – 5 A with an AAL024 sensor). 0.0055" (0.14 mm) trace
(0 – 1 A with an AAL024 sensor).

10

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Figure 14d. 1" (25 mm) trace on the bottom side of the PCB
(0 – 50 A with an AAL024 sensor).

For the geometry shown in Figure 15 and narrow traces with, the magnetic field generate can be approximated by Ampere’s law:

Sensor

Circuit Board d

Current Trace w

Figure 15. The geometry of current-sensing over a circuit board trace.

H = 2I [“H” in oersteds, “I” in amps, and “d” in millimeters]

d
The trace can also be run on the top side of the PCB for more current sensitivity.

More precise calculations can be made by breaking the trace into a finite element array of thin traces, and calculating the field
from each array element. We have a free, Web-based application with a finite-element model to estimate magnetic fields and
sensor outputs in this application:
www.nve.com/spec/calculators.php#tabs-Current-Sensing

11

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Part Numbering

AA H 002-02E

Base Part Subtype Sensitivity Direction Sensitivity Code Package Type

AA = Analog Blank = Standard 00 = Standard 00 = MSOP8
Magnetometer Sensors H = High sensitivity 02 = Cross-Axis 02 = SOIC8
K = High field 10 = TDFN6
AB = Analog Gradiometers L = Low hysteresis 14 = ULLGA4
E = RoHS
Direction of Sensitivity
AA-Series (magnetometers) AB-Series (gradiometers)

MSOP8/SOIC8 TDFN6 ULLGA4

Sensitivity
Standard

Gradient
Positive
Cross-Axis
Sensitivity
Pinouts

AA-Series Pinout
VCC Sensitivity
Standard Cross-Axis
(AAX 00x-xx) (AAX02x-xx)
VOUT- MSOP/ MSOP/
TDFN TDFN
ULLGA SOIC SOIC Symbol Description
Negative bridge output
3 1 1 5 4 VOUT-
VOUT+ (decreases with increasing field).
2 2
2 2 NC No internal connection.
3 3
GND 4 4 3 4 3 V-/GND Negative supply or ground.
Positive bridge output
1 5 4 1 1 VOUT+
(increases with field).
6 6
5 5 NC No internal connection.
7 7
2 8 6 8 6 V+ Positive supply voltage.
Center Pad Center Pad NC Internally connected to leadframe

AB-Series Pinout
Pin Symbol Description
Negative bridge output
1 VOUT-
(decreases with gradient).
2
NC No internal connection.
3
4 V-/GND Negative supply or ground.
Positive bridge output
5 VOUT+
(increases with gradient).
6
NC No internal connection.
7
8 V+ Positive supply.
12

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

AA-Series Sensor Selector Chart

100

AAH002 Key
10 Saturation
Sensitivity (mV/V/Oe)

Linear Range

AA002/AALxxx
AA003

1 AA004

AA005

0.1 AA007

0.01

AAK001

0.001

0.1 1 10 100 1000 10000

Magnetic Field Range (Oe)

Available Parts
Magnetometers (AA-Series)
Linear Range Sensitivity Max. Max.
(|Oe|) Satura- (mV/V-Oe) Non- Hyst- Max. Typ.
Available tion linearity eresis Operating Resist-
Part Min. Max. (|Oe|) Min. Max. (% Uni.) (% Uni.) Temp. ance Package
AA002-02 1.5 10.5 15 3 4.2 2% 4% 125°C 5 kΩ SOIC8
AA003-02 2 14 20 2 3.2 2% 4% 125°C 5 kΩ SOIC8
AA004-00 5 35 50 0.9 1.3 2% 4% 125°C 5 kΩ MSOP8
MSOP8
AA024-00 5 35 50 0.9 1.3 2% 4% 125°C 5 kΩ (cross-axis)
AA004-02 5 35 50 0.9 1.3 2% 4% 125°C 5 kΩ SOIC8
AA005-02 10 70 100 0.45 0.65 2% 4% 125°C 5 kΩ SOIC8
AA006-00 5 35 50 0.9 1.3 2% 4% 125°C 30 kΩ MSOP8
AA006-02 5 35 50 0.9 1.3 2% 4% 125°C 30 kΩ SOIC8
AA007-00 50 450 500 0.08 0.12 2% 4% 125°C 5 kΩ MSOP8
AAH002-02 0.6 3 6 11 18 4% 15% 150°C 2 kΩ SOIC8
AAH004-00 1.5 7.5 15 3.2 4.8 4% 15% 150°C 2 kΩ MSOP8
AAL002-02 1.5 10.5 15 3 4.2 2% 2% 125°C 5.5 kΩ SOIC8
AAL004-10 1.5 10.5 15 3 4.2 4% 2% 125°C 2.2 kΩ TDFN6
TDFN6
AAL024-10 1.5 10.5 15 3 4.2 4% 2% 125°C 2.2 kΩ (cross-axis)
AAK001-14 400 2500 4000 0.0025 0.004 2% 4% 85°C 3.5 kΩ ULLGA4

Gradiometers (AB-Series)
Linear Range Sensitivity Max. Max.
(|Oe|) Satura- (%R/Oe) Non- Hyst- Max. Typ.
Available tion linearity eresis Operating Resist-
Part Min. Max. (|Oe|) Min. Max. (% Uni.) (% Uni.) Temp. ance Package
AB001-02 10 175 250 0.02 0.03 2% 4% 125°C 2.5 kΩ SOIC8
AB001-00 10 175 250 0.02 0.03 2% 4% 125°C 2.5 kΩ MSOP8
ABH001-00 5 40 70 0.06 0.12 4% 15% 150°C 1.2 kΩ MSOP8

Note: 1 Oe = 0.1 mT in air.

13

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Evaluation Kits
Four inexpensive evaluation kits including AA- or AB-Series analog sensors are available:

AG001-01: Analog Sensor Evaluation Kit

This kit features several types of NVE’s AA and AB series parts, a selection of permanent magnets for
activation or bias purposes, and circuit boards to mount the parts for testing.

AG003-01: AA003 Current Sensor Evaluation Kit

This kit features a circuit board with different trace configurations running under four AA003-02E
analog sensors to evaluate the sensor as non-contact current sensors. The board supports current
ranges of 0–9 amps, 0–6 amps, and 0–250 milliamps. Boards measure 2 by 1.85 inches
(51 mm by 47 mm), and include four sensors.

AG903B-01: GMR Current Sensor Evaluation Kit

This board includes three AAL024-10E TDFN current sensors on a PCB with three current-trace
configurations, The board supports current ranges of 0–0.75 amp, 0–5 amps, and 0–50 amps. The
boards measure 1.565" x 2.915" (40 mm by 74 mm) and include sensor power and output connections,
and plus connections for the current to be measured.

GMR Sensors:
* Smaller
* More sensitive
* More precise
* Lower power

PNP
AG940-07E: Digital/Analog/Omnipolar/Bipolar Sensor Demo Board
2x CR2032
transistor

LED1 LED2 LED3 LED4

The kit includes a demo board with our most popular digital, analog, omnipolar, and bipolar sensors,
including an AA006-00E analog sensor. Each sensor drives an indicator LED. A bar magnet is
ADL021-14E
Digital
20 Oe Omnipolar
2.4V - 3.6V
0.08 A
AD004-00E
Digital
20 Oe Omnipolar
4.5V - 30V
2 mA
ADV001-00E
Digital
4 Oe Bipolar
4.5V - 30V
2 mA
AA006-00E
Analog
0-50 Oe Omnipolar
0 - 24V
30 kOhm bridge
included so you can see for yourself how the sensors work. The evaluation boards are 3.75 by 5 inches
1.1 mm ULLGA MSOP MSOP MSOP

(95 mm by 127 mm), and are powered by two coin cells (included).
OFF

Selector
switch
www.nve.com AG940-06
(800) GMR-7141 ©NVE Corporation

14

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Bare Circuit Boards for Sensors

NVE offers several bare circuit boards specially designed for easy connections to surface-mount sensors. Popular PCBs are shown
below (images are actual size):

2,8
3,5
4

AG004-06: 3" x 0.3" (75 x 8 mm) SOIC8 circuit board

1/8 8/5
4/1 5/4

1/8

4/1

AG005-06:
0.5" x 0.5" (13 mm x 13 mm)
SOIC8

1 8
2
7

3 6
4 5

AG915-06:
0.25" (6 mm) octagonal
MSOP8

AG918-06 (standard) / AG919-06 (cross-axis):

2" x 0.25" (50 mm x 6 mm) MSOP8

AG035-06:
1.57" x 0.25" (40 mm x 6 mm) TDFN6

AG904-06:
1.2" x 0.25" (30 mm x 6 mm)
ULLGA

15

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Package Drawings

ULLGA4 (-14E suffix)

Top View Side View Bottom View

0.34
1.10 1.10
0.40
0.35 0.30
0.65
1

1.10
3 4

0.10
1.10

0.20

0.60
0.40
2 1

0.05
Package Marking: “1”

Dimensions in mm; ±0.10 mm

unless otherwise noted.

RoHS
COMPLIANT

TDFN6 (-10 suffix)

0.80 MAX. 2.00 ± 0.05
6 4 4 6
1.30±0.05
2.50±0.10

C0.10

PIN 1
ID

1 3 3 1 0.30±0.05
2.50 ± 0.10 0.30±0.05 0.65 TYP.
0.0-0.05 (6X) (4X)
1.30 REF (2X)

0.20 REF
RoHS
COMPLIANT

16

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

MSOP8 (-00 suffix)

0.114 (2.90)
0.122 (3.10)
0.016 (0.40)
0.027 (0.70)
0.189 (4.80) 0.114 (2.90) 0.032 (0.80)
0.197 (5.00) 0.122 (3.10) 0.043 (1.10)

0.024 (0.60) 0.002 (0.05)

0.028 (0.70) 0.006 (0.15)
0.005 (0.13)
0.010 (0.25)
0.009 (0.23) NOTE: Pin spacing is a BASIC
0.016 (0.40)
dimension; tolerances
do not accumulate

SOIC8 (-02 suffix) RoHS

COMPLIANT
0.188 (4.77)
0.016 (0.4)
0.197 (5.00)
0.050 (1.3)

0.052 (1.32) 0.054 (1.37)

0.062 (1.57) 0.072 (1.83)
0.228 (5.8) 0.150 (3.8)
0.244 (6.2) 0.157 (4.0)
0.004 (0.1)
0.050 (1.27)
0.012 (0.3)
NOM NOTE: Pin spacing is a BASIC
dimension; tolerances
0.013 (0.3) 0.007 (0.2)
do not accumulate
0.020 (0.5) 0.013 (0.3)
RoHS
COMPLIANT
Soldering profiles per JEDEC J-STD-020C, MSL 1.

17

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Revision History
SB-00-059-G Change
July 2019 • Added SI units (mT) where appropriate.
• Added higher current-sensing trace illustration (p. 11).
• Revised AG903B-01 current sensor evaluation kit (p. 14).

SB-00-059-F Change
October 2018 • Improved AAL-Series bandwidth specification; specified −3 dB bandwidth (p. 3).
• Added AG903B high-current evaluation kit (p. 14).

SB-00-059-E Change
January 2018 • Added Absolute Maximum isolation specification for TDFN package (p. 2).
• Added TDFN Center Pad description (p. 12).
• Updated AAL004 and AAL024 linearity specification (p. 13).

SB-00-059-D Change
October 2017 • Added AAK001 ultrahigh-field model.
• Added LED field-strength indicator and current-sensing applications (p. 10).
• Added AA selector chart (p. 13).
• Added Evaluation Kits (p. 14) and bare circuit boards (p. 15).
• Misc. cosmetic changes and additional illustrations.

SB-00-059-C Change
September 2017 • Added AA007-00E high-field model.

SB-00-059-B Change
August 2017 • Added AA024-10E and AAL024-10E cross-axis versions.

SB-00-059-A Change
April 2017 • Initial datasheet release superseding catalog.

18

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

Datasheet Limitations
The information and data provided in datasheets shall define the specification of the product as agreed between NVE and its customer, unless NVE and
customer have explicitly agreed otherwise in writing. All specifications are based on NVE test protocols. In no event however, shall an agreement be
valid in which the NVE product is deemed to offer functions and qualities beyond those described in the datasheet.

Limited Warranty and Liability

Information in this document is believed to be accurate and reliable. However, NVE does not give any representations or warranties, expressed or
implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information.

In no event shall NVE be liable for any indirect, incidental, punitive, special or consequential damages (including, without limitation, lost profits, lost
savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on
tort (including negligence), warranty, breach of contract or any other legal theory.

Right to Make Changes

NVE reserves the right to make changes to information published in this document including, without limitation, specifications and product descriptions
at any time and without notice. This document supersedes and replaces all information supplied prior to its publication.

Use in Life-Critical or Safety-Critical Applications

Unless NVE and a customer explicitly agree otherwise in writing, NVE products are not designed, authorized or warranted to be suitable for use in life
support, life-critical or safety-critical devices or equipment. NVE accepts no liability for inclusion or use of NVE products in such applications and such
inclusion or use is at the customer’s own risk. Should the customer use NVE products for such application whether authorized by NVE or not, the
customer shall indemnify and hold NVE harmless against all claims and damages.

Applications
Applications described in this datasheet are illustrative only. NVE makes no representation or warranty that such applications will be suitable for the
specified use without further testing or modification.

Customers are responsible for the design and operation of their applications and products using NVE products, and NVE accepts no liability for any
assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NVE product is suitable and fit for
the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customers. Customers should
provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.

NVE does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party customers. The customer is responsible for all necessary testing for the
customer’s applications and products using NVE products in order to avoid a default of the applications and the products or of the application or use by
customer’s third party customers. NVE accepts no liability in this respect.

Limiting Values
Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the
device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the recommended
operating conditions of the datasheet is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the
quality and reliability of the device.

Terms and Conditions of Sale

In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NVE hereby expressly objects to
applying the customer’s general terms and conditions with regard to the purchase of NVE products by customer.

No Offer to Sell or License

Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication
of any license under any copyrights, patents or other industrial or intellectual property rights.

Export Control
This document as well as the items described herein may be subject to export control regulations. Export might require a prior authorization from national authorities.

Automotive Qualified Products

Unless the datasheet expressly states that a specific NVE product is automotive qualified, the product is not suitable for automotive use. It is neither
qualified nor tested in accordance with automotive testing or application requirements. NVE accepts no liability for inclusion or use of non-automotive
qualified products in automotive equipment or applications.

In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall
use the product without NVE’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the
product for automotive applications beyond NVE’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies
NVE for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NVE’s
standard warranty and NVE’s product specifications.

19

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation
 AA/AB-Series Analog Magnetic Sensors

An ISO 9001 Certified Company

NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
www.nve.com
www.youtube.com/NveCorporation

e-mail: sensor-info@nve.com

©NVE Corporation
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

SB-00-059_RevG
July 2019
20

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.com www.nve.com ©NVE Corporation