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ZSSC3170EE1B

更新时间: 2024-12-03 02:57:31
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31页 1087K
描述
Automotive Sensor Signal Conditioner with LIN and PWM Interface

ZSSC3170EE1B 数据手册

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Automotive Sensor Signal Conditioner  
with LIN and PWM Interface  
ZSSC3170  
Datasheet  
Brief Description  
Benefits  
The ZSSC3170 is a CMOS integrated circuit for highly  
accurate amplification and sensor specific correction  
of bridge sensor signals. Featuring a maximum analog  
gain of 420, as well as extended offset compensation  
capabilities, the ZSSC3170 is adjustable to nearly all  
resistive bridge sensor types.  
Measurement and temperature signal available via  
one output pin  
Compatible with nearly all resistive bridge inputs  
No external trimming components required  
Single-pass calibration minimizes calibration costs  
End-of-line calibration using sensor output  
Digital compensation of offset, sensitivity, temperature  
drift, and nonlinearity is accomplished via a 16-bit  
RISC microcontroller. Conditioning coefficients are  
stored in an EEPROM certified for automotive appli-  
cations.  
Optimized for automotive environments with  
special protection circuitry, excellent electro-  
magnetic compatibility, and numerous diagnostic  
features; AEC-Q100-qualified  
Measured values are provided by one of the digital  
LIN or PWM interfaces. Each interface can support  
end-of-line calibration using the sensor output. Noise  
sensitivity is greatly reduced because the calibration  
equipment and the ZSSC3170 are mated digitally.  
Available Support  
Evaluation Kit  
Application Notes  
Calculation Tools  
For quick and easy evaluation and support for  
calibrating prototypes, IDT offers the ZSSC3170 SSC  
Evaluation Kit, which includes evaluation hardware,  
SSOP20 samples, and software.  
Physical Characteristics  
Supply voltage: 7 to 18 V  
Current consumption in Sleep Mode: ≤ 100μA  
Input span: 1.8 to 267 mV/V  
Features  
ADC resolution: 13 to 14 bit  
Complies with LIN specifications 1.3 / 2.0 / 2.1  
Configurable LIN publisher frame content  
Output resolution: up to 12-bit (LIN and PWM)  
Operating temperature range: -40 to 125°C  
Extended operating temperature range: 150°C  
Data conversion rate of up to 430Hz fully utilizes  
the maximum LIN channel capacity of 20kbit/s  
RoHS-compliant delivery form options:  
SSOP20, DFN20, or die  
PWM high-side and low-side switches, support for  
LIN communication for end-of-line calibration  
Digital compensation of offset, gain, temperature  
effects up to 2nd order, and nonlinearity up to 3rd  
order. Compensation of temperature sensor offset,  
gain, and nonlinearity up to 2nd order.  
ZSSC3170 Basic Circuit  
LIN  
GND  
Internal or external temperature reference  
Media temperature sensing by diode or RTD  
Load dump protection of the LIN pin up to ±40V  
VBAT  
Accuracy  
±0.25% FSO @ -20 to 85°C  
±0.50% FSO @ -40 to 125°C  
±1.00% FSO @ -40 to 150°C  
3 EEPROM words available for optional user data  
1
May 30, 2016  

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