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) o - Null ......………....... 100 microvolts / C (typical) o - Scale ...………....... 0.02% / C @ +1Vdc output Output short duration ……………......... Continuous (Vout and Vref) Temperature range o - Operating .……… . -20 to +70C o - Storage ...………... -40 to +80C 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 o o possible to reduce the scale temperature coefficient error from a 0.3%/C (nominal), to 0.03%/C (nominal). Please see wiring diagram for connection points. Dimensions SPECTRON SYSTEMS TECHNOLOGY INC. 595 OLD WILLETS PATH HAUPPAUGE NY 11788 PHONE: 631 582-5600 FAX: 631 582-5671 Specifications are subject to change without notice! Doc.# SDS-107-1703 SA40012 – Single Axis CMOS Signal Conditioning Module Input/Output Connections Consult factory for further technical information and ordering details! SPECTRON SYSTEMS TECHNOLOGY INC. 595 OLD WILLETS PATH HAUPPAUGE NY 11788 PHONE: 631 582-5600 FAX: 631 582-5671 Specifications are subject to change without notice!