High-End 18-Bit Sensor Signal Conditioner

The ZSSC3218 is a sensor signal conditioner (SSC) integrated circuit for high-accuracy amplification and analog-to-digital conversion of a differential or pseudo-differential input signal. Designed for high-resolution sensor module applications, the ZSSC3218 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 (≤ 20MHz). 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, nonvolatile, multiple-time programmable (MTP) memory. Programming the ZSSC3218 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 ZSSC3218 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 for optimizing sensor signals: gain range 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 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 elements can achieve an accuracy of better than ±0.10% full-scale output at -40°C to 85°C

Product Options

Orderable Part ID Part Status Description Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSSC3218BI1B Active 304μm thickness DICE WAFER 0 -40 to 85°C Wafer Availability
ZSSC3218BI2B Active 725μm thickness DICE WAFER 0 -40 to 85°C Wafer Availability
ZSSC3218BI3R Active Engineering samples NLG24 VFQFPN 24 -40 to 85°C Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSSC3218 Short-form Datasheet - Short Form Datasheet PDF 72 KB Apr 19, 2016
ZSSC3218 Datasheet - Datasheet PDF 909 KB Apr 19, 2016
User Guides & Manuals
ZSSC3218 Evaluation Kit Description - Manual PDF 3.90 MB Apr 16, 2016
Apps Notes & White Papers
IDT Wafer Dicing Guidelines - Application Note PDF 44 KB Apr 16, 2016

Software & Tools

Title Other Languages Type Format File Size Date
ZSSC3218 Evaluation Kit Software Rev. 1.94 - Software ZIP 8.09 MB Apr 6, 2016

Evaluation Boards

Part Number Title Sort ascending
ZSSC3218KIT Evaluation Kit for ZSSC3218