ADS7809/ADS8509 pdf datasheet

The ADS7809 and ADS8509 are complete 16-bit analog-to-digital (A/D) using state-of-the-art CMOS
structures. They contain a complete 16-bit, capacitor-based, successive approximation register (SAR) A/D
with sample-and-hold, reference, clock, and a serial data interface. Data can be output using the internal
clock or can be synchronized to an external data clock. The ADS7809 and ADS8509 also provide an
output synchronization pulse for ease of use with standard DSP processors.
The EVM is available with either the ADS7809 or ADS8509 installed. The EVM can also accommodate
the 12-bit ADS7808 simply removing and replacing the installed device. Samples of the ADS7808 can be
obtained through the sample program at Texas Instruments. See the ADS7808 Product Folder for details.