Versatile, High Resolution 18-Bit ZSSC3018 Sensor Signal Conditioner Datasheet Benefits Brief Description Integrated 26-bit calibration math DSP The ZSSC3018 is a sensor signal conditioner (SSC) integrated circuit for high-accuracy amplification and analog-to-digital Fully corrected signal at digital output conversion of differential or pseudo-differential input signals. Layout customized for die-die bonding with sensor for high- Designed for high-resolution sensor module applications, the density chip-on-board assembly st nd ZSSC3018 can perform offset, span, and 1 and 2 order One-pass calibration minimizes calibration costs temperature compensation of the measured signal. Developed for No external trimming, filter, or buffering components required correction of resistive bridge or absolute voltage sensors, it can also provide a corrected temperature output measured with an Highly integrated CMOS design internal sensor. Integrated reprogrammable non-volatile memory The measured and corrected sensor values are provided at the Excellent for low-voltage and low-power battery applications 2 digital output pins, which can be configured as I C ( 3.4MHz) or Optimized for operation in calibrated resistive sensor SPI ( 10MHz). Digital compensation of signal offset, sensitivity, (e.g., pressure) or calibrated absolute voltage sensor temperature, and non-linearity is accomplished via a 26-bit internal (e.g., thermopile) modules digital signal processor (DSP) running a correction algorithm. Calibration coefficients are stored on-chip in a highly reliable, non- volatile, multiple-time programmable (MTP) memory. Programming the ZSSC3018 is simple via the serial interface. The interface is Physical Characteristics used for the PC-controlled calibration procedure, which programs Supply voltage range: 1.68V to 3.6V the set of calibration coefficients in memory. The ZSSC3018 Current consumption: ~1.0mA (typical) in operating mode provides accelerated signal processing, increased resolution, and improved noise immunity in order to support high-speed control, Sleep Mode current: 50nA (typical) at 125C 20nA (typical) safety, and real-time sensing applications with the highest at 85C requirements for energy efficiency. Temperature resolution: <0.003K/LSB Best-in-class energy-efficiency: with 16-bit resolution: <140pJ/step with 18-bit resolution: <50pJ/step Features Operation temperature: 40C to +125C Flexible, programmable analog front-end design up to 18-bit Delivery options: die or 24-PQFN (4 x 4 mm) package analog-to-digital converter (ADC) Fully programmable gain amplifier with gain range from 6.6 to * FSO = Full Scale Output. 216 (linear) Internal auto-compensated temperature sensor st nd Digital compensation of individual sensor offset 1 and 2 st ZSSC3018 Application Example order digital compensation of sensor gain as well as of 1 nd and 2 order temperature gain and offset drift VDD Programmable interrupt operation Sensor Bridge High-speed sensing: e.g., 16-bit conditioned sensor signal GND -1 measurement rate >500s EOC ZSSC3018 Typical sensor system can achieve an accuracy of better than MISO 0.10% FSO* -40 to 125C MOSI/SDA SCLK/SCL 24-PQFN SS 2020 Renesas Electronics Corporation 1 September 8, 2020 ZSSC3018 Datasheet Block Diagram Vreg int VDDB (Bridge Sensor Example) VDD VTP Temperature AGND / CM Bias Current Reference Voltage Regulator Generator Generator Sensor V TN Power Ctr. VSS ZSSC3018 DSP Core A MUX PGA ADC EOC (Calculations, INP D Communication) 18 bit 18 Bit INN Sensor Pre-Amplifier Bridge SCLK/SCL SS SPI MOSI/SDA VSSB MISO System Clock Generator MTP Power-ON IC RES Control Unit Reset Oscillator Analog Digital Interface Functionality Support Applications Barometric altitude measurement for portable Fan control navigation or emergency call systems Industrial, pneumatic, and liquid pressure Altitude measurement for car navigation High-resolution temperature measurements Weather forecast Object-temperature radiation (via thermopile) 2020 Renesas Electronics Corporation 2 September 8, 2020 Multiplexer