PS09 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
PS09 – Soc for Weighing and Force Measurement - 28-bit converter plus microcontroller integrated - Perfectly suited for battery-driven applications - 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 Torque with high Precision www.ams.com/PS09
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 PS09 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, pressure 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 converter with a 24-bit microprocessor. PS09 allows to build scales with up to 150,000 stable peak-peak divisions at 2 mV/V. On the other hand, sophisticated power management can reduce the total system current, e.g. 40 μA with 3 Hz and 14 bits at 2 mV/V. Special features like the capacitive inputs for buttons or sliders that need only 1 μA operating current round out the functionality. External LCD Driver UART Con/f_ig Load cell Load cell Load cell Load cell UART GPIOs Ceramic oscilaltor 10 kHz CLK
4 Mhz
Ref Osc Watchdog Timer Reset SPI / IIC SPI / IIC - Interface
8 Digital GPIOs
24 Bit
Features
- RMS noise 11nV SINC5, 5Hz - Up to 80.000 peak-peak divisions (2mV/V strain) - Scalable udapte rate from <1 to 10.000Hz - Resolution: 28-bit ENOB (RMS) - 24-bit internal microprocessor with 8kB OTP - 4-wire serial SPI interface - Current consumption of ~7μA in low current configuration - Power supply voltage: 2.1V to 3.6V Benefits - Small and compact solution for weighing applications - Converter and microcontroller in one chip - Perfectly suited for building digital load cells and consumer scales - 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
Applications
- Force sensors - Pressure sensors - Scales - Digital load cells - Torque wrenches - Legal for trade scales - Counting scales