特長
- Differential bridge sensor input and on-chip or external temperature sensors, selectable for conditioning of sensor input signal and/or temperature output
- Extended temperature measurement options (i.e., internal sensor, external diode)
- SENT interface: OWI or I²C option for calibration
- Digital compensation of offset, gain, and higher-order nonlinearity, as well as temperature coefficients of measured sensor input signals
- Operating temperature range: -40°C to 150°C
- Accuracy: ± 0.50% FSO at -40°C to 125°C
- NVM memory for configuration data, a user-configurable measurement and conditioning function, and user-selected data
説明
The ZSSC4169D is a high-performance CMOS IC for precise amplification and correction of Wheatstone bridge sensor signals. With digital compensation for offset, drift, and nonlinearity, it delivers excellent accuracy and reliability. Various self-supervision mechanisms allow monitoring for correct functionality during operation. Integrated non-volatile memory (NVM) and digital calibration reduce assembly costs and eliminate external trimming. Focused for automotive use, the ZSSC4169D offers robust protection, excellent EMC, and easy calibration via I²C or OWI interface, making it the most efficient, cost-effective solution for sensor signal processing.
The ZSSC4169D-14 is optimized for SENT output interface and offers measurement of one Wheatstone bridge and additional measurement of one-half bridge branch of the same Wheatstone bridge, and temperature compensation with external P/N junction or internal temperature source. The device also offers bridge input signal amplification up to 200, A/D conversion with 14 bits, and sample rates up to 1.3kHz. Operation in functional safety systems up to ASIL C is supported.
パラメータ
| 属性 | 値 |
|---|---|
| Function | Resistive SSC |
| Automotive Qual. | Yes |
| Supply Voltage (V) | 4.5 - 5.5, 4.75 - 5.25 |
| Input Type | Single-bridge, Single-Bridge, Temperature Diode |
| Interface | SENT, I2C |
| Adj. Analog Gain | 2.1 - 200 |
| Resolution (bits) | 14 |
| Sample Rate Max (KHz) | 0.66, 1.3 |
| Temp. Range (°C) | -40 to +150°C, -40 to 150°C |