SCA600 Series

Accelerometer Chip
FEATURES BENEFITS
• Available ranges ±1g, ±1.5g, ±1.7g, ±3g • Exceptional reliability, unprecedented accuracy
• 8-pin plastic surface mount DIP package and excellent stability over temperature and time
mountable with pick and place machines • Outstanding overload and shock durability
• Enhanced failure detection • No additional components required
• Digitally activated electrostatic self test
• Calibration memory parity check APPLICATIONS
• Continuous connection failure detection • Acceleration measurement
• Bi-directional acceleration measurement • Inclination measurement
• Controlled frequency response in the sensing • Vibration measurement
element • Motion measurement
• Re-flow solder, process compatible
• Single +5V supply; ratiometric voltage output For customised products please contact
in the range 4.75 … 5.25V VTI HAMLIN

DIMENSIONS
The accelerometer weighs under 1g. The size of the part is approximately (w x h x l) 9 x 5 x 11 mm. Pin pitch is standard 100 mils.

10.54 5.20
8 7 6 5

SENSING DIRECTION
CONNECTION
SERIAL NUMBER 1, 2, 3, 5 Open or capacitively connected to GND for EMC
(2 (C1) may be used for frequency setting in a different mode)
11.46
8.38

4 Ground (GND)
6 Self test triggering (ST)
7 Analog output voltage (Vout)
8 Supply voltage (Vdd)

1 2 3 4 Acceleration in the direction of the arrow will increase the output

VTI PART 3.45 voltage.

PCB PAD LAYOUTS PRODUCT CODE KEY

1.39 2.54±0.05 PART NUMBER X X X X X X

RO. 1 TYP
ASIC TYPE SENSITIVITY MECHANICAL FEATURE
C=HML294 1=2000 mV/g G= SMD Pins
1.81

2=1500 mV/g T= Through Hole

3=1333 mV/g
4=1000 mV/g
5=750 mV/g
10.96±0.05

FREQUENCY RESPONSE
9.15±0.05

8=1200mV/g
C=150mV/g 1= 400Hz
SENSING ELEMENT D=1575mV/g 2= 1kHz
1= Small 1g; G001BA (XC) E=1666mV/g 3= Wide Band
2= Small 1g; 50Hz; G001BB F=1471.5mV/g 4= External Capacitor
3= Small 3g; G003BA (XE) G=1875mV/g OFFSET
B= Inclinometer 0.5g; G001BC (XB) J=400mV/g H= Output @ 0g = 2.500V
C=Small 3g; G003BC; 115Hz
V= Output @ +1g = 2.500V
D=Small 12g, G012XX (XX)

Standard versions in bold

VTI Hamlin Oy, P.O. Box 27, FIN-01621 Vantaa, Finland

Phone +358 9 879 181, Fax +358 9 8791 8791, www.vti.fi/vtihome.htm
 SCA600 Series

ABSOLUTE MAXIMUM RATINGS

Parameter Value Units
Acceleration (powered or non-powered) 20000 g
Supply voltage -0.3 to +7.0 V
Voltage at input / output pins -0.3 to Vdd + 0.3 V
Temperature range -55 to +125 °C

ELECTRICAL CHARACTERISTICS
Parameter Condition Min. Typ Max. Units
Supply voltage Vdd 4.75 5.25 V
Current consumption Vdd = 5V; No load 2.0 4.0 mA
Operating temperature - 40 + 125 °C
Resistive output load Vout to Vdd or Vss 20 kOhm
Capacitive load Vout to Vdd or Vss 20 nF
Output noise (9 DC...4kHz 1 5 mVrms
VDD = 5.00V, UNLESS OTHERWISE SPECIFIED

PERFORMANCE CHARACTERISTICS
Parameter Condition/ SCA600- SCA600- SCA600- SCA600- SCA600- SCA600- Units
Comment C13H1G C21H1G C23H1G C28H1G C35H1G C35V1G
Measuring range (1 Nominal ±1.5 ±1 ±1.5 ±1.7 ±2.7 ±2.7 g
Mounting plane (2 Measuring Direction Horizontal Horizontal Horizontal Horizontal Horizontal Vertical
Zero point (nom.) (3 Vout in mounting position Vdd/2 Vdd/2 Vdd/2 Vdd/2 Vdd/2 Vdd/2 V
Sensitivity (5 @ room temperature 1.333 2 1.333 1.2 0.75 0.75 V/g
Zero point error -40...125°C ±125(4a ±125(4a ±125(4a ±125(4a ±200(4a ±300(4b mg
Sensitivity error (6 -40...125°C ±4 ±4 ±4 ±4 ±4 ±4 %
Typical non-linearity (7 Over measuring range ±30 ±20 ±30 ±40 ±60 ±80 mg
Cross-axis sensitivity (8 5 5 5 5 5 5 %
Frequency response -3dB point (9 400±150 50±30 50±30 50±30 400±150 400±150 Hz
Ratiometric error (10 Vdd = 4.75...5.25V 2 2 2 2 2 2 %
VDD = 5.00V, UNLESS OTHERWISE SPECIFIED

Note 1. The measuring range is limited by sensitivity, offset and supply voltage rails of the device.
Note 2. Measuring direction parallel to mounting plane.
Note 3. Vertical versions in +1g position, i.e. arrow up; horizontal versions pins down (+0g).
Note 4a. Zero point error specified as (Vout (+0g) - Vdd/2) / Vsens [g] (room temp. error included); Vsens = Nominal sensitivity.
Note 4b. Zero point error specified as [Vout (+1g) - Vdd/2] / Vsens [g] (room temp. error included); Vsens = Nominal sensitivity.
Note 5. Sensitivity specified as [Vout (+1g) - Vout(-1g)] / 2 [V/g] .
Note 6. Sensitivity error specified as {[Vout (+1g) -Vout (-1g)] / 2 -Vsens} / Vsens x 100% [%] (room temp. error included); Vsens = Nominal sensitivity.
Note 7. Relative to straight line between ±1g.
Note 8. The cross-axis sensitivity determines how much acceleration, perpendicular to the measuring axis, couples to the output. The total cross-axis sensitivity is the geometric
sum of the sensitivities of the two axes, which are perpendicular to the measuring axis.
Note 9. The output has true DC (0Hz) response.
Note 10. Supply voltage noise also couples to the output, due to the ratiometric (output proportional to supply voltage) nature of the accelerometer.

5.00V
Vout(@Vx) x
The ratiometric error is specified as:  RE = 100% x 1 - Vx
Vout(@5V)

VTI Hamlin Oy, P.O. Box 27, FIN-01621 Vantaa, Finland Rev. 2 January 2001
Phone +358 9 879 181, Fax +358 9 8791 8791, www.vti.fi/vtihome.htm VTI Hamlin reserves the right to modify this specification without prior notice.