The ZSC31010 is a CMOS integrated circuit, which enables easy and precise calibration of resistive bridge sensors via EEPROM. When mated to a resistive bridge sensor, it will digitally calibrate offset and gain with the option to calibrate offset and gain coefficients and linearity over temperature. A second-order compensation can be enabled for temperature coefficients of gain or offset or bridge linearity. ZSC31010 communicates via IDT's ZACwire™ serial interface to the host computer and is easily mass calibrated in a Windows™ environment. Once calibrated, the output SIG™ pin can provide selectable 0 to 1 V absolute analog output; rail-to-rail ratiometric analog output; or digital serial output of bridge data with optional temperature data.
特長
- Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity
- Accommodates differential sensor signal spans from 3 mV/V to 105 mV/V
- ZACwire™ one-wire interface (OWI)
- Internal temperature compensation and detection via bandgap PTAT (proportional to absolute temperature)
- Optional sequential output of both temperature and bridge readings on ZACwire™ digital output
- Output options: ratiometric analog voltage, absolute analog voltage, digital one-wire-interface
- Supply voltage 2.7V to 5.5 V, with external JFET 5.5V to 30 V
- Current consumption, depending on adjusted sample rate, 0.25 mA to 1 mA
- Wide operational range -50°C to +150°C
- Fast response time 1 ms
- High voltage protection up to 30V with external JFET
- Buffered and chopper-stabilized output DAC