ZSSC3170 Datasheet, PDF (1/30 Pages) List of Unclassifed Manufacturers – Automotive Sensor Signal Conditioner with LIN and PWM Interface

Automotive Sensor Signal Conditioner
with LIN and PWM Interface
ZSSC3170
Datasheet
Brief Description
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.
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.
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.
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.
Features
 Complies with LIN specifications 1.3 / 2.0 / 2.1
 Configurable LIN publisher frame content
 Data conversion rate of up to 430Hz fully utilizes
the maximum LIN channel capacity of 20kbit/s
 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 2^nd order, and nonlinearity up to 3^rd
order. Compensation of temperature sensor offset,
gain, and nonlinearity up to 2^nd order.
 Internal or external temperature reference
 Media temperature sensing by diode or RTD
 Load dump protection of the LIN pin up to ±40V
 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
Benefits
 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
 Optimized for automotive environments with
special protection circuitry, excellent electro-
magnetic compatibility, and numerous diagnostic
features; AEC-Q100-qualified
Available Support
 Evaluation Kit
 Application Notes
 Calculation Tools
Physical Characteristics
 Supply voltage: 7 to 18 V
 Current consumption in Sleep Mode: ≤ 100μA
 Input span: 1.8 to 267 mV/V
 ADC resolution: 13 to 14 bit
 Output resolution: up to 12-bit (LIN and PWM)
 Operating temperature range: -40 to 125°C
 Extended operating temperature range: ≤150°C
 RoHS-compliant delivery form options:
SSOP20, DFN20, or die
ZSSC3170 Basic Circuit
LIN
GND
VBAT
© 2016 Integrated Device Technology, Inc.
1
May 30, 2016