The ZSSC3053 is a CMOS integrated circuit for high-accurate amplification and sensor specific
correction of mV-DC-sensor signals.
Featuring a programmable analog gain up to 420 digital processing allows for a maximum overall gain of 5000. Due to extended offset compensation capabilities the ZSSC3053 is adjustable to nearly all resistive bridge sensor types, e.g. piezo-resistive, thin-film and thick-film.
It also enables the interfacing of single-ended resistive sensors (e.g. RTDs) or mV-DC-sources.
Digital compensation of offset, sensitivity, temperature drift and nonlinearity is accomplished by a 16-bit RISC microcontroller running a correction algorithm with calibration coefficients stored in an EEPROM.
Measured values are provided by digital interfaces I²CTM or SPI. In I²CTM mode two programmable switch outputs are available that indicate when the signal exceeds or falls below a programmable value. Since the calibration equipment and the ZSSC3053 are linked digitally noise sensitivity is greatly reduced. Digital calibration helps to keep assembly cost low as no trimming or laser tuning is needed.
For quick and easy evaluation and support of prototype calibration, ZMDI offers the ZSSC3053 Evaluation Kit, which includes an evaluation board, TSSOP14-samples and software.

• Digital compensation of measured offset, gain, TC up to 2nd order, NL up to 3rd order
• Compensation of temperature sensor offset, gain, NL up to 2nd order
• Internal temperature reference
• Operational temperature range (-25 to +85)°C
• Accuracy: ±0.10% FSO @ (-25 to +85)°C
• 2 EEPROM words for user data

• Supports digital standard interfaces I²CTM & SPI with very low number of discrete external parts
• Complies to nearly all resistive sensor elements as well as to mV-DC-sources
• Single pass “one-shot” calibration minimizes calibration costs
• Two programmable switch outputs
• Programmable I²CTM slave address enables multi-slave-bus-operation

μC-based sensor systems in industrial, medical and consumer applications for measuring

• pressure
• temperature
• force & load
• linear position