18-Bit, 670 KSPS, Differential Programmable Input PulSAR® ADC

The AD7634 is an 18-bit charge redistribution successive approximation Register (SAR), architecture analog-to- digital converter (ADC) fabricated on Analog Devices, Inc.s iCMOS high voltage process. The device is configured through hardware or via a dedicated write-only serial configuration port for input range and operating mode. The AD7634 contains a high speed 18-bit sampling ADC an internal conversion Clock an internal reference (and buffer), error correction circuits, and both serial and parallel system Interface ports. A falling edge on CNVST samples the fully differential Analog inputs on IN+ and IN. The AD7634 features four different Analog input ranges and three different sampling modes. Operation is specified from 40C to +85C.
Applications CT scanners High dynamic data acquisition - replacement Spectrum analysis Medical instruments Instrumentation Process controls
Data Sheet, Rev. 0, 1/07
By Analog Devices, Inc.