Advanced Analog Circuits Data sheet

LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

General Description Features

The AZ393 series consists of two independent preci- · Wide supply

sion voltage comparators with an offset voltage speci- - Voltage range: 2.0V to 18V
fication as low as 1mV. The input common mode - Single or dual supplies: ±1.0V to ± 9V
voltage range of these comparators includes ground, · Very low supply current drain: 0.4mA
even when operated from a single power supply volt-
- independent of supply voltage
age. Operation from split power supplies is also possi-
ble and the low power supply current drain is · Low input bias current: 25nA
independent of the magnitude of the power supply · Low input offset current: ±5nA
voltage. · Low input offset voltage: 1mV
· Input common mode voltage range that includes
The AZ393 series is designed to directly interface with ground
TTL and CMOS. · Differential input voltage range equal to the
power supply voltage
The AZ393 series can be widely used in such applica- · Low output saturation voltage: 250mV at 4mA
tions as battery charger, cordless telephone, switching · Open-collector output
power supply, DC-DC module and PC motherboard.
Applications

· Battery Charger
· Cordless Telephone
· Switching Power Supply
· DC-DC Module
· PC Motherboard
· Communication Equipment

DIP-8 SOIC-8

Figure 1. Package Types of AZ393

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Advanced Analog Circuits Data sheet

LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Pin Configuration

SOIC-8/DIP-8

OUTPUT1 1 8 VCC

INPUT1- 2 77 OUTPUT 2

INPUT1+ 3 6 INPUT 2-

GND 4 5 INPUT 2+

Top View

Figure 2. Pin Configuration of AZ393

Functional Block Diagram

V CC

3.5µA 100µA 3.5µA 100µA

Q2 Q3
+INPUT Q1 Q4

O UTPUT
-INPUT Q8

Q7

Q5 Q6

Figure 3. Functional Block Diagram of AZ393

(Each Comparator)

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Advanced Analog Circuits Data sheet

LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Ordering Information

Package Temperature Range Part Number Marking ID Packing Type

SOIC-8 AZ393M AZ393M Tube/ Reel
-40oC ~ 85oC
DIP-8 AZ393P AZ393P Tube

Absolute Maximum Ratings (Note 1)

(Operation temperature range applies unless otherwise specified.)
Parameter Symbol Min Max Unit
Supply Voltage VCC 20 V
Differential Input Voltage VID 20 V
Input Voltage VIN -0.3 20 V
Input Current (VIN < -0.3V) IIN 50 mA
Power Dissipation PD 780 mW
Output Short -Circuit to Ground Continuous
Operating Temperature TA -40 85 o
C
Storage Temperature TSTG -65 165 o
C
Lead Temperature (Soldering, 10 seconds) TLEAD 260 oC

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operation Ratings " is not implied. Exposure to "Absolute Maximum Rat-
ings" for extended periods may affect device reliability.

Recommended Operation Ratings

Parameter Min Max Unit

Supply Voltage 18 V
Operating Temperature Range -40 85 o
C

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Advanced Analog Circuits Data sheet

LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Electrical Characteristics
VCC = +5V, TA = 25oC, unless otherwise specified.
Parameter Conditions Min Typ Max Unit
Input Offset Voltage (Note 2) 1.0 5.0 mV
Input Bias Current I IN (+) or I IN (-) with output in 25 250 nA
linear range, VCM = 0V, (Note 3)
Input Offset Current I IN (+) - I IN (-), VCM = 0V 5.0 50 nA
Input Common Mode VCC=15V, (Note 4) 0 VCC-1.5 V
Voltage Range
Supply Current RL=∞, VCC = 5V 0.4 1.0 mA
RL=∞, VCC = 18V 1.0 2.5
Voltage Gain RL ≥ 15KΩ, VCC = 8V, 50 200 V/mV
VO = 1V to 6V
Large Signal Response VIN = TTL logic swing, 300 ns
Time VREF = 1.4V, VRL = 5V,
RL = 5.1KΩ
Response Time VRL = 5V, RL = 5.1KΩ, (Note 5) 1.3 µs
Output Sink Current VIN (-) = 1V, VIN (+) = 0, 6.0 16 mA
VO ≤ 1.5V
Saturation Voltage VIN (-) = 1V, VIN (+) = 0, 250 400 mV
ISINK ≤ 4mA
Output Leakage Current VIN (-) = 0, VIN (+) = 1V, VO = 5V 0.1 nA

Note 2: At output switch point, VO=1.4V, RS=0 with VCC from 5V to 15V, and over the full common-mode range
(0V to VCC - 1.5V), at 25oC.

Note 3: The direction of the input current is out of the PNP input stage. This current is essentially constant, indepen-
dent of the state of the output, so no loading charge exists on the reference of input lines.

Note 4: The input common-mode voltage of either input signal voltage should not be allowed to go negative by
more than 0.3V. The upper end of the common-mode voltage range is VCC - 1.5V, but either or both inputs can go to
+18V without damage, independent of the magnitude of VCC.

Note 5: The response time specified is a 100mV input step with 5mV overdrive. For large overdrive signals 300ns
can be obtained.

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LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Typical Characteristics
0.7 30
o
-40C -40C
o

0.6
SUPPLY CURRENT(mA)

25

INPUT CURRENT (nADC)

o
25C 25C
o

0.5
o
85C 20
o
0.4 85C
15
0.3

10
0.2

0.1 5

0.0 0
0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18
SUPPLY VOLTAGE (VDC) SUPPLY VOLTAGE (VDC)

Figure 4. Supply Voltage vs. Supply Current Figure 5. Supply Voltage vs. Input Current

10

6V VOUT
SATURATION VOLTAGE (VDC)

OUTPUT VOLTAGE

4V
1 VOUT
2V
5V

0
0.1 VIN VIN _
5.1K

o
105mV 5V VOUT

25C
100mV +
INPUT VOLTAGE

o
85C VIN VIN _
5.1K

0.01 VOUT

o 100mV
-40C
+

5mV

1E-3
0.01 0.1 1 10 100
0
OUTPUT SINK CURRENT(mA) 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
TIME (µs)

Figure 6. Output Sink Current vs.Saturation Voltage Figure 7. Response Time for 5mV Input Overdrive -
Negative Transition
OUTPUT VOLTAGE

6V
5V
4V
5.1K

2V VOUT
VIN _

VOUT
100mV +

0V

200mV

VIN
INPUT VOLTAGE

150mV

100mV

50mV

0
0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4

TIME (µs)

Figure 8. Response Time for 5mV Input Overdrive -

Positive Transition

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LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Typical Applications

VCC
+5.0VDC

3K + 8 100K
+VIN +
1/2 AZ393
1/2 AZ393 VO
1/4 MM54CXX
- 4
+VREF -

Figure 9. Basic Comparator Figure 10. Driving CMOS/TTL

VCC

VCC

4.3K
1M
10K 100K
100pF

+VIN -
75pF
IN914 1M
1/2 AZ393 -
VO

+ 1/2 AZ393 VO

0.001pF
100K
VIN

IN914 100K
1M

Figure 11. One Shot Multivibrator Figure 12. Squarewave Oscillator

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LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Mechanical Dimensions

DIP - 8

9.2±0.10 7.62±0.25
5°
6° 6°
1.46±0.31 0.7

3.30±0.30
4°
4°

φ3×0.15±0.05

0.254 0.28±0.07
0.457 2.54
10.0MAX
0.13MIN
6.60±0.50

R0.75

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LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393

Mechanical Dimensions (Continued)

SOIC - 8

1.55±0.20

0.22±0.03
0.32
4.9±0.10
7°
8°

0.70±0.025
8°
7°
D
0.2±0.10

6.00±0.20

D
20:1

0.20
φ0.8

4°
±4°
3.90±0.10

1.00
0.90

R0.15

R0.15
3°
±2°
0.42±0.09

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 Advanced Analog Circuits

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IMPORTANT NOTICE

Advanced Analog Circuits Corporation reserves the right to make changes to its products or specifications at any time, without
notice, to improve design or performance and to supply the best possible product. Advanced Analog Circuits does not assume any
responsibility for use of any circuitry described other than the circuitry embodied in Advanced Analog Circuits' products. The
company makes no representation that circuitry described herein is free from patent infringement or other rights of Advanced Ana-
log Circuits Corporation.