altZMDI (Dresden, Germany) has introduced a new 16-bit sensor signal conditioning IC (SSC). Developed for resistive bridge sensors, the ZSSC3017 combines high accuracy amplification, 16-bit precision analog-to-digital conversion, and an 18-bit DSP for linearization and calibration functions.

The ZSSC3017 operates on supply voltages from 2.7 to 5.5 volts and over a temperature range of -40°C to +85°C. Accuracy is ±0.50% FSO over the full temperature range. Noise performance of far less than 1.5μV (rms, input-referred) is possible. Power consumption during sleep mode is below 2 μA at 25°C. The layout of the ZSSC3017 is customized for die bonding with a sensor.

An on-chip 18-bit DSP implements the calibration math and sophisticated second-order error correction for temperature offset, drift, and non-linearity. Calibration data is stored in on-chip EEPROM, and calibration is accomplished with a PC-based program using a two-wire, I2C-based interface. It operates on supply voltages from 2.7 to 5.5 volts. Noise performance of less than 1.5μV (rms, input-referred) is possible. Power consumption during sleep mode is below 2μA at 25°C. The layout is customized for die bonding with a sensor.

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