SA40012 Datasheet, PDF (1/2 Pages) HY ELECTRONIC CORP. – Single Axis CMOS Signal Conditioning Module

SA40012 – Single Axis CMOS Signal Conditioning Module
The SA40012 Single Axis CMOS Signal Conditioning Module is a DC input/output operated device, which operates off a
single ended supply, and provides a bipolar DC output. Specifically designed to interface directly with all Spectron Single Axis
Tilt Sensors, this low power consumption conditioner is ideal for battery driven applications. Featuring a PC board mountable
design, the module internally converts the DC input voltage into an AC excitation voltage for the sensor, and demodulates the
sensor output into a smooth amplified DC output voltage. Incorporating a proprietary signal processing algorithm, and an
external temperature compensation sensor (optional), normal measurement errors are severely reduced. The SA40012 also
features overload protection, and is 100% reliability tested to provide the highest quality available.
General Specifications
Input voltage ...………………………........+5Vdc to +15Vdc
Input current ........………………………... 0.5mA @ +5Vdc, 0.9mA @ +15Vdc
Sensor excitation ..……………………..... 380 mV pp, square wave
Input impedance .……………………....... 5 megohms
Output .......……………………………..... +/-1.5Vdc @+6Vdc supply, referenced to Vref
Note; minimum output = 50mVdc + (supply voltage . 1.5Vdc)
Load ......……………………………...…... 100k ohm minimum
Time constant .......…………………….... 30 msec
Offset adjustment .…………………….... +/-45 mVdc
Output ripple .....……………………….... 0.35% of output voltage (RG 24k ohm)
Temperature coefficients (module w/out sensor)
- Null ......………....... 100 microvolts / C^o (typical)
- Scale ...………....... 0.02% / C^o @ +1Vdc output
Output short duration ……………......... Continuous (Vout and Vref)
Temperature range
- Operating .……… . -20 to +70C^o
- Storage ...………... -40 to +80C^o
Temperature Compensation
- Temperature compensation of the assembly (module and sensor) can be accomplished using an external silicon
temperature sensor (KTY81-120) and a resistor (.RT., see wiring diagram for typical values). With this configuration, it is
possible to reduce the scale temperature coefficient error from a 0.3%/C^o (nominal), to 0.03%/C^o (nominal). Please see
wiring diagram for connection points.
Dimensions
SPECTRON SYSTEMS TECHNOLOGY INC.
595 OLD WILLETS PATH
HAUPPAUGE NY 11788
PHONE: [phone]
FAX: [phone]
Specifications are subject to change without notice!
Doc.# SDS-107-1703