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.