FEATURES
100kHz SAMPLING RATE
86dB SINAD WITH 20kHz INPUT
±2LSB INL
DNL: 16 Bits No Missing Codes
SIX SPECIFIED INPUT RANGES
SERIAL OUTPUT
SINGLE +5V SUPPLY OPERATION
PIN-COMPATIBLE WITH 12-BIT ADS7808
USES INTERNAL OR EXTERNAL
REFERENCE
100mW MAX POWER DISSIPATION
0.3" SO-20
SIMPLE DSP INTERFACE

DESCRIPTION
The ADS7809 is a complete 16-bit sampling Analog-to-
Digital (A/D) converter using state-of-the-art CMOS structures.
It contains a 16-bit capacitor-based Successive Approximation
Register (SAR) A/D converter with sample-andhold,
reference, clock, and a serial data interface. Data can
be outputted using the internal clock, or can be synchronized
to an external data clock. The ADS7809 also provides an
output synchronization pulse for ease of use with standard
DSP processors.
The ADS7809 is specified at a 100kHz sampling rate, and
specified over the full temperature range. Laser-trimmed
scaling resistors provide various input ranges including ±10V
and 0V to 5V, while an innovative design operates from a
single +5V supply, with power dissipation under 100mW.
The ADS7809 is available in a 0.3" SO-20, and is fully
specified for operation over the industrial –40°C to +85°C
range.