ZSSC3154 Datasheet, PDF (1/28 Pages) List of Unclassifed Manufacturers – Automotive Sensor Signal Conditioner with Dual Analog Output

Automotive Sensor Signal
Conditioner with Dual Analog Output
ZSSC3154
Datasheet
Brief Description
The ZSSC3154 is an integrated circuit for highly
accurate amplification and sensor-specific correction
of a bridge sensor signal. Up to two temperature
sensors can also be read in parallel.
The circuitry provides different configurations of the
analog outputs to show two measurement results
simultaneously. This also allows generating a com-
plementary bridge sensor signal, which is often a
requirement in safety-relevant applications.
The ZSSC3154 can measure and process two exter-
nal temperature sensors to compensate the temper-
ature drift of the bridge sensor signal and to output a
separate temperature signal.
An integrated calibration microcontroller with an on-
chip EEPROM performs the digital compensation of
the sensor offset, the sensitivity, the temperature
drift, and the nonlinearity of a sensor signal.
The single-pass, digital end-of-line calibration com-
bined with the integrated broken-chip detection sup-
ports automatic and highly efficient mass production.
Features
• Differential bridge sensor input
• Half-bridge sensor or temperature sensor input
• Digital compensation of offset, gain, nonlinearity,
and temperature dependency
• Two analog outputs; behavior programmable by
EEPROM configuration
• Sequential analog output mode provides two
measurement values at one output pin
• On-chip diagnostic and safety features including
sensor connection diagnostic and broken-chip
detection
• 2 EEPROM words for arbitrary user data
• Multiple configurable output options
Benefits
• Bridge sensor signal validation for safety
applications via two antivalent analog outputs or
via half-bridge sensor measurement output
• Simultaneous measurement of sensor signals,
including temperature signal for compensation
and for temperature output
• Efficient use of non-calibrated elements for
bridge sensors and temperature sensors without
external trimming components
• Single-pass end-of-line calibration algorithm
minimizes production costs
• Excellent EMC/ESD robustness and AEC-Q100
qualification
Available Support
• Evaluation Kit
• Application Notes
• Calculation Tools
Physical Characteristics
• Supply voltage: 4.5 to 5.5V
• Maximum supply voltage: 7.7V
• Input span: 1.8 to 267mV/V
• ADC resolution: 14 bit
• Output resolution: > 12 bit from 10% to 90%
• Operating temperature range: -40°C to 150°C
• Package: QFN32 (5x5mm; wettable flank) or die
ZSSC3154 Basic Circuit
DFBH
VTN2
VTN1
VBR_T
VBP
VBR_B
VBN
VDDA
VSSA
SDA
SCL
VDD
VDDE
AOUT1
AOUT2
VSSE
VCC
AOUT1
AOUT2
GND
© 2016 Integrated Device Technology, Inc.
1
January 22, 2016