FEATURES
250kHz SAMPLING RATE
COMPLETE WITH S/H, REF, CLOCK, ETC.
96dB min SFDR WITH 100kHz INPUT
84dB min SINAD
±2.5V INPUT RANGE
28-LEAD SOIC

APPLICATIONS
WIRELESS BASE STATIONS
SPECTRUM ANALYSIS
IMAGING SYSTEMS
DATA ACQUISITION

DESCRIPTION
The ADS7811 is a complete 16-bit sampling analog-todigital
(A/D) converter featuring excellent AC
performance and a 250kHz throughput rate. The design
includes a 16-bit capacitor-based SAR A/D
converter with an inherent sample and hold (S/H), a precision
reference, and an internal clock. Spurious-free dynamic
range with a 100kHz full-scale sinewave input is typically
greater than 100dB. The ±2.5V input range allows development
of precision systems using only ±5V supplies. The
converter is available in a 28-lead SOIC package specified
for operation over the industrial –25°C to +85°C temperature
range.