ZSC31014 Datasheet | IDT

RBicilite™ Digital Output Sensor Signal Conditioner Brief Description The ZSC31014 is a CMOS integrated circuit for highly accurate amplification and analog-to-digital conversion of differential and half-bridge input signals. The ZSC31014 can pensate the measured signal for offset, 1st and 2nd order span, and 1st and 2nd order temperature (Tco and Tcg). It is well suited for sensor-specific correction of bridge sensors. Digital pensation of signal offset, sensitivity, temperature drift, and non-linearity is acplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM. The ZSC31014 is adjustable to nearly all piezoresistive bridge sensors. Measured and corrected bridge values are provided at digital output pins, which can be configured as I2C™- or SPI. The digital I2C™ interface can be used for a simple PCcontrolled calibration procedure to program calibration coefficients into an on-chip EEPROM. The calibrated ZSC31014 and a specific sensor are mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or laser trimming. The ZSC31014’s integrated diagnostics functions are well suited for safety-critical applications. Features - High accuracy (±0.1% FSO @ -25 to +85°C; ±0.25% FSO @ -40 to +125°C) - 2nd order charge-balancing analog-to-digital converter provides low noise, 14-bit data at sample rates exceeding 2k Hz - Fast power-up to data output response: 3ms at 4MHz - Digital pensation of sensor offset, sensitivity, temperature drift, and non-linearity - Eight programmable analog gain settings bine with a digital gain term; acmodates bridges with spans <1m V/V and high offset - Internal temperature pensation for sensor correction and for corrected temperature output - 48-bit customer ID field for module traceability - I2C™ is a trademark of NXP. Benefits - Simple PC-controlled configuration and...