DATASHEET
ISL267817 FN7877
Rev 2.00
April 19, 2012 12-Bit Differential Input 200kSPS SAR ADC
The ISL267817 is a 12-bit, 200kSPS sampling SAR-type ADC
which features excellent linearity over supply and temperature
variations, and provides a drop-in compatible alternative to all
ADS7817 performance grades. The robust, fully-differential
input offers high impedance to minimize errors due to leakage
currents, and the specified measurement accuracy is
maintained with input signals up to the supply rails. Features The reference accepts inputs between 0.1V to 2.5V, providing
design flexibility in a wide variety of applications. The
ISL267817 also features up to 8kV Human Body Model ESD
survivability. 200kHz Sampling Rate The serial digital interface is SPI compatible and is easily
interfaced to popular FPGAs and microcontrollers. Operating
from a 5V supply, power dissipation is 2.15mW at a sampling
rate of 200kSPS, and just 25ВµW between conversions utilizing
the Auto Power-Down mode, making the ISL267817 an
excellent solution for remote industrial sensors and
battery-powered instruments. It is available in the compact,
industry-standard 8 Lead SOIC and MSOP packages and is
specified for operation over the industrial temperature range
(-40В°C to +85В°C). Drop-In Compatible with ADS7817 (All Performance Grades) Differential Input Simple SPI-compatible Serial Digital Interface Guaranteed No Missing Codes +4.75V to +5.25V Supply Low 2.15mW Operating Power (200kSPS) Power-down Current between Conversions: 3ВµA Excellent Differential Non-Linearity (1.0LSB max) Low THD: -85dB (typ) Pb-Free (RoHS Compliant) Available in SOIC and MSOP Packages Applications Remote Data Acquisition Battery Operated Systems Industrial Process Control Energy Measurement Data Acquisition Systems Pressure Sensors Flow Controllers 1.00 …
