Features
- Adjustable to nearly all resistive bridge sensor types, analog gain of 420, overall gain up to 1680
- Enhanced sample rate up to 7.8 kHz
- High ADC resolution 15/16 bit
- Safety functionality sensor connection
- Internal temperature compensation
- Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity
- Output options: ratiometric analog voltage output (5% to 95% maximum, 12.4 bit resolution) or ZACwire™ (digital one-wire-interface)
- Sensor biasing by voltage
- High voltage protection up to 33V
- Supply current: max. 5.5mA
- Reverse polarity and short circuit protection
- Operation temperature range as wide as -40°C to +150°C
- Traceability by user-defined EEPROM entries
Description
The ZSSC3138 is a member of the ZSSC313x product family of CMOS integrated circuits designed for automotive and industrial sensor applications. All family members are well suited for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. An internal 16-bit RISC microcontroller running a correction algorithm compensates sensor offset, sensitivity, temperature drift, and non-linearity of the connected sensor element. The required calibration coefficients are stored by the single-pass calibration procedure in an on-chip EEPROM. The ZSSC3138 offers a maximum analog gain of 420 and two offset compensation features. These fit the requirements of ceramic thick-film-based sensor elements as well as strain gauges perfectly. The high amplification in combination with the offset compensation offers the capability to set up ceramic-thick-film-based sensor applications without laser trimming, which leads to better long-term stability.
Parameters
| Attributes | Value |
|---|---|
| Function | Resistive SSC |
| Automotive Qual. | Yes |
| Supply Voltage (V) | 4.5 - 5.5 |
| Input Type | Single-bridge |
| Interface | Ratiometric Voltage, ZACwire™, I2C |
| Adj. Analog Gain | 3 - 3, 7 - 7, 9 - 9, 14 - 14, 26 - 26, 35 - 35, 52 - 52, 70 - 70, 105 - 105, 140 - 140, 210 - 210, 280 - 280, 420 - 420 |
| Resolution (bits) | 16 |
| Sample Rate Max (KHz) | 7.8 |
| Temp. Range (°C) | -40 to +150°C, -40 to 125°C, -40 to 150°C |
Renesas Boards & Kits
Evaluation Kit for ZSSC313x
The ZSSC313xKIT Evaluation Kit provides the hardware needed for configuration, calibration and evaluation of the ZSSC3131, ZSSC3135, ZSSC3136 and ZSSC3138 Sensor Signal Conditioner (SSC) IC. The user's PC can communicate with the ZSSC313x IC socketed on the ZSSC313x SSC Evaluation Board via the... Read More
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