特長
- Digital compensation of sensor offset, sensitivity, temperature drift, and nonlinearity
- Programmable analog gain and digital gain; accommodates bridges with spans <1mV/V and high offset
- Many diagnostic features on chip (e.g., EEPROM signature, bridge connection checks, bridge short detection, power loss detection)
- Independently programmable high and low clipping levels
- 24-bit customer ID field for module traceability
- Digital calibration and configuration via one-wire interface quick and precise
- Internal temperature compensation reference (no external components)
- Option for external temperature compensation with addition of single diode
- Output options: rail-to-rail ratiometric analog voltage (12-bit resolution), absolute analog voltage, digital one-wire-interface
- Supply voltage 2.7V to 5.5V, with external JFET, 5.5V to 30V
- Fast power-up to data output response, output available 5ms after power up
- Current consumption depends on the programmed sample rate: 1mA down to 250µA (typical)
説明
The ZSC31015 (RBicdLite™) is a CMOS integrated circuit for highly accurate amplification and sensor-specific correction of bridge sensor signals. Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM. The ZSC31015 is adjustable to nearly all piezoresistive bridge sensors. Measured and corrected bridge values are provided at the SIG™ pin, which can be configured as an analog voltage output or as a one-wire serial digital output. The digital one-wire interface can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSC31015 and a specific sensor are mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or laser. Integrated diagnostics functions make the ZSC31015 particularly well suited for automotive applications.
パラメータ
| 属性 | 値 |
|---|---|
| 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, 24 - 24, 48 - 48, 96 - 96 |
| Resolution (bits) | 14 |
| Sample Rate Max (KHz) | 1 |
| Temp. Range (°C) | -25 to +85°C, -25 to 85°C, -40 to +125°C, -40 to 125°C, -50 to +150°C, -50 to 150°C |
アプリケーション・ブロック図
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Renesas Boards & Kits
Evaluation Kit for ZSC31015
The ZSC31015KIT Evaluation Kit, also known as the ZACwireTM SSC Modular Evaluation Kit, provides the hardware needed for configuration, calibration and evaluation of the ZSC31015 Sensor Signal Conditioner (SSC) IC. The user's PC can communicate with the ZSC31015 IC socketed on the ZSC31015 SSC... 続きを読む
Mass Calibration System for ZSC31015
The ZSC31015 Mass Calibration System provides the hardware needed for simultaneous configuration, calibration and evaluation of multiple ZSC31015 Sensor Signal Conditioner (SSC) ICs. The user's PC can communicate via the SSC Communication Board with multiple ZSC31015 ICs (DUTs) mounted on either... 続きを読む
