PS081 SCIOSENSE | Alldatasheet
Document overview
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Technical content
This product, formerly sold by ams AG, and before that optionally by either Applied Sensors GmbH, acam-messelectronic GmbH or Cambridge CMOS Sensors, is now owned and sold by ScioSense The technical content of this document under ams / Applied Sensors / acam- messelectronic / Cambridge CMOS Sensors is still valid. Contact information Headquarters: Sciosense B.V. High Tech Campus 10
5656 AE Eindhoven
info@sciosense.com www.sciosense.com
PS081 – Single-chip solution for weighing applications - Converter, microcontroller and LCD controller in one chip - Extreme low total system current (down to 15μA including strain gauge) - Ultra-low self-heating of the sensor - Digital gain and offset correction of the load cell Checking Weight with Lowest Power www.ams.com/PS081
sales-europe@ams.com sales-asia@ams.com sales-americas@ams.com www.ams.com sensors@ams.com © 02/2019 by ams Subject to change without notice Headquarters ams AG Tobelbader Strasse 30, 8141 Premstaetten, Austria Phone +43 3136 500-0 General Description The PS081 is a system on chip for ultra low power and high resolution applications. It was designed especially for weight scales but fits also to any kind of force or torque measurements based on metal strain gauges. It takes full advantage of the digital measuring principle of PICOSTRAIN. Thus, it combines the performance of a 28-bit signal converter with a 24-bit microprocessor. Additional elements like an LCD driver, 3K ROM with many complex pre-defined functions, 2k EEPROM program memory and an integrated 10kHz oscillator round off the device. A small amount of external components is sufficient to build a complete weighing electronic. Measurement Unit Watchdog Timer Reset Con/f_ig Load cell Load cell Load cell Load cell ceramic LCD LCD- Driver Voltage- doubler
6 DIGITAL
4 Mhz
Applications
Features
- RMS noise 8.9nV SINC5, 5Hz - Up to 250.000 peak-peak divisions (2mV/V strain) - Scalable udapte rate from <1 to 1.000Hz - Resolution: 28-bit ENOB (RMS) - 24-bit internal microprocessor with 2 kB EEPROM - Internal LCD controller for 4x14, 3x15 and 2x16 segments - 4-wire serial SPI interface - Current consumption of ~5μA in low current configuration - Power supply voltage: 2.1V to 3.6V - Torque wrenches - Pressure indicators - Legal for trade scales - Counting scales Benefits - Single-chip solution for weighing applications - Converter, microcontroller and LCD controller in one chip - Extreme low total system current (down to 15μA including strain gages) - Very low self heating of the sensor – gain and offset correction of the load cell