Features
- Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity
- Supports differential sensor signal spans from 3mV/V to 105mV/V
- Internal temperature compensation and detection via a bandgap proportional to absolute temperature (PTAT)
- Optional sequential output of both temperature and bridge readings through the ZACwire™ digital output
- Output options: ratiometric analog voltage, absolute analog voltage, or ZACwire digital one-wire interface (OWI)
- Supply voltage range: 2.7V to 5.5V; 5.5V to 30V with an external JFET
- Current consumption: 0.25mA to 1mA, depending on the adjusted sample rate
- Wide operating temperature range: -50°C to +150°C
- Fast response time: 1ms
- High-voltage protection up to 30V with an external JFET
- Buffered and chopper-stabilized output DAC
Description
The ZSC31010 is a CMOS integrated circuit that enables easy and precise calibration of resistive bridge sensors via EEPROM. When paired with a resistive bridge sensor, it digitally calibrates offset and gain, with the option to calibrate offset and gain coefficients as well as linearity over temperature. Second-order compensation can be enabled for the temperature coefficients of gain, offset, or bridge linearity.
The ZSC31010 communicates with a host computer via the Renesas ZACwire™ serial interface and can be easily mass-calibrated in a Windows® environment. Once calibrated, the SIG™ pin can provide a selectable 0 to 1V absolute analog output, a rail-to-rail ratiometric analog output, or a digital serial output of bridge data with optional temperature data.
Parameters
| Attributes | Value |
|---|---|
| Function | Resistive SSC |
| Automotive Qual. | No |
| Supply Voltage (V) | 2.7 - 30 |
| Input Type | Single-bridge |
| Interface | Ratiometric Voltage, Absolute Voltage, ZACwire™ |
| Adj. Analog Gain | 6 - 6, 12 - 12, 24 - 24, 48 - 48 |
| Resolution (bits) | 14 |
| Sample Rate Max (KHz) | 1 |
| Temp. Range (°C) | -40 to +85°C, -40 to 85°C, -50 to 150°C |