特性
- Sample rates up to 1.48kHz
- A/D conversion up to 18 bits
- Temperature Sensor Support
- Internal PTAT and external diode (ZSSC4161D-01)
- Internal PTAT and external diode, or RTD (ZSSC4161D-03)
- Output Interface Type
- I²C with optional ZACwire™ OWI (ZSSC4161D-01)
- SENT - SAE J2716 (ZSSC4161D-03)
- Functional Safety (FuSa)
- Not explicitly FuSa-rated (ZSSC4161D-01)
- ASIL B compliant, FuSa version available (ZSSC4161D-03)
- Output Resolution
- 15-bit via I²C (ZSSC4161D-01)
- 12-bit SENT output (ZSSC4161D-03)
- Fault Messaging
- I²C fault signaling bit and error code register (ZSSC4161D-01)
- SENT Fast Channel fault codes (ZSSC4161D-03)
- SDM status word (ZSSC4161D-03)
- SENT status bits (ZSSC4161D-03)
- Calibration Interface: I²C or OWI
- Bridge Signal Amplification
- 2.1 to 200 (ZSSC4161D-01)
- 1.0 to 200 - with some limitations with ASIL B (ZSSC4161D-03)
- Application Focus
- General automotive sensor conditioning (ZSSC4161D-01)
- Automotive + safety-critical applications (ZSSC4161D-03)
描述
The ZSSC4161D 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 and digital calibration reduce assembly costs and eliminate external trimming. Focused for automotive use, the ZSSC4161D 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 ZSSC4161D includes two different product derivatives:
The ZSSC4161D-01 is optimized for I²C output interface, offers measurement of one Wheatstone bridge, temperature compensation with external P/N junction or internal temperature source. Bridge input signal amplification goes up to 200, A/D conversion up to 18 bits, and sample rates up to 1.48kHz.
The ZSSC4161D-03 is optimized for SENT output interface, offers measurement of one Wheatstone bridge, temperature compensation with external P/N junction or internal temperature source. Bridge input signal amplification goes up to 200, A/D conversion up to 18 bits, and sample rates up to 1.48kHz. Operation in functional safety systems up to ASIL B is supported.
产品参数
| 属性 | 值 |
|---|---|
| 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, PTC |
| Interface | SENT, I2C |
| Adj. Analog Gain | 1 - 200, 2.1 - 200 |
| Resolution (bits) | 14, 18 |
| Sample Rate Max (KHz) | 1.33, 1.48 |
| Temp. Range (°C) | -40 to +150°C |
应用
- Fluid brake pressure sensing (PV)
- Hydraulic pressure sensing (e.g., steering systems with hydraulic steering support)
- Pneumatic pressure sensing (e.g., air brake systems, pneumatic shock absorbers)