
Integrated Device Technology
Brief Description
The ZSSC3136 is a member of the ZSSC313x family of CMOS integrated circuits for automotive/ industrial sensor applications. All family members are well suited for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. An internal 16-bit RISC microcontroller running a correction algorithm compensates sensor offset, sensitivity, temperature drift, and non-linearity of the connected sensor element. The required calibration coefficients are stored by the one-pass calibration procedure in an on-chip EEPROM.
FEATUREs
• Analog gain of 105, maximum overall
gain of 420
• Sample rate: 200 Hz maximum
• ADC resolution: 13/14 bit
• External temperature sensor
• Safety functionalities: Calibration microcontroller,
sensor connection, analog front-end
• Adjustable to nearly all resistive bridge sensor
types
• Digital compensation of sensor offset, sensitivity,
temperature drift, and non-linearity
• Output options: ratiometric analog voltage output
(5 - 95% in maximum, 12.4 bit resolution) or
ZACwireTM (digital One-Wire Interface (OWI))
• Sensor biasing by voltage
• High voltage protection up to 33 V
• Supply current: max. 5.5mA
• Reverse polarity and short circuit protection
• Wide operation temperature: -40 to +150°C
• Traceability by user-defined EEPROM entries
Benefits
• Capability for setting up SIL level 2 applications
• Application-focused feature set
• No external trimming components required
• Only a few external protection devices needed
• PC-controlled configuration and one-pass/
end-of-line calibration via I²C™* or ZACwireTM
interface: simple, cost-efficient, quick, and
precise
• High accuracy (0.25% FSO** @ -25 to +85°C;
0.5% FSO @ -40 to +125°C)
• Optimized for automotive/ industrial environment
due to robust protection circuitries, excellent
electromagnetic compatibility and AEC-Q100
qualification