ZMD has introduced a 16-bit sensor signal conditioning IC for calibrated resistive sensor modules.
Designed for altimeter module applications in mobile phones, sport watches or outdoor GPS tracking systems, the ZSSC3016 allows an altitude resolution of less than 15cm at sea level.
“It is accurate enough for barometric altitude measurement for portable navigation or emergency call systems, altitude measurement for car navigation, inside hard disk pressure measurement, and weather forecasting equipment,” said the supplier.
The ZSSC3016 combines an amplifier, 16-bit analogue-to-digital conversion and an 18-bit DSP with calibration functions.
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Low power consumption is less than 1mA and a standby current of less than 250nA, operation voltages between 1.8 and 3.6V.
The device has an internal sensor supply regulator with an excellent power supply rejection ratio (PSRR) eliminating the need of an external buffer cap and making it suitable for mobile phones or other transmitters which are creating battery voltage dumps during operation.
The ZSSC3016 operates at a temperature range of -40°C to +85°C. Accuracy is less than ±0.10% FSO over the full temperature range.
The ZSSC3016 can perform offset, span, and first and second order temperature compensation of the measured signal. Developed for correction of resistive bridge sensors, the ZSSC3016 can provide a corrected temperature output measured with an internal sensor.
The measured and corrected bridge values are provided at the digital output pins, which can be configured as I2C or SPI.
www.zmdi.com