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ZSSC3018BA2C Datasheet(PDF) 1 Page - Integrated Device Technology |
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ZSSC3018BA2C Datasheet(HTML) 1 Page - Integrated Device Technology |
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1 / 50 page  Versatile, High Resolution 18-Bit Sensor Signal Conditioner ZSSC3018 Datasheet © 2017 Integrated Device Technology, Inc 1 January 10, 2017 Brief Description The ZSSC3018 is a sensor signal conditioner (SSC) integrated circuit for high-accuracy amplification and analog-to-digital conversion of differential or pseudo-differential input signals. Designed for high-resolution sensor module applications, the ZSSC3018 can perform offset, span, and 1st and 2nd order temperature compensation of the measured signal. Developed for correction of resistive bridge or absolute voltage sensors, it can also provide a corrected temperature output measured with an internal sensor. The measured and corrected sensor values are provided at the digital output pins, which can be configured as I2C (≤ 3.4MHz) or SPI (≤ 10MHz). Digital compensation of signal offset, sensitivity, temperature, and non-linearity is accomplished via a 26-bit internal 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 used for the PC-controlled calibration procedure, which programs the set of calibration coefficients in memory. The ZSSC3018 provides accelerated signal processing, increased resolution, and improved noise immunity in order to support high- speed control, safety, and real-time sensing applications with the highest requirements for energy efficiency. Features Flexible, programmable analog front-end design; up to 18-bit analog-to-digital converter (ADC) Fully programmable gain amplifier with gain range from 6.6 to 216 (linear) Internal auto-compensated temperature sensor Digital compensation of individual sensor offset; 1st and 2nd order digital compensation of sensor gain as well as of 1st and 2nd order temperature gain and offset drift Programmable interrupt operation High-speed sensing: e.g., 16-bit conditioned sensor signal measurement rate >500s-1 Typical sensor system can achieve an accuracy of better than ± 0.10% FSO* @ -40 to 125°C Benefits Integrated 26-bit calibration math DSP Fully corrected signal at digital output Layout customized for die-die bonding with sensor for high- density chip-on-board assembly One-pass calibration minimizes calibration costs No external trimming, filter, or buffering components required Highly integrated CMOS design Integrated reprogrammable non-volatile memory Excellent for low-voltage and low-power battery applications Optimized for operation in calibrated resistive sensor (e.g., pressure) or calibrated absolute voltage sensor (e.g., thermopile) modules Physical Characteristics Supply voltage range: 1.68V to 3.6V Current consumption: ~1.0mA (typical) in operating mode Sleep Mode current: 50nA (typical) at 125°C; 20nA (typical) at 85°C Temperature resolution: <0.003K/LSB Best-in-class energy-efficiency: with 16-bit resolution: <140pJ/step with 18-bit resolution: <50pJ/step Operation temperature: –40°C to +125°C Delivery options: die or 24-PQFN (4 x 4 mm) package * FSO = Full Scale Output. ZSSC3018 Application Example Sensor Bridge EOC GND VDD ZSSC3018 MISO SCLK/SCL SS MOSI/SDA 24-PQFN |
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