FEATURES

100kHz SAMPLING RATE

72dB SINAD WITH 45kHz INPUT

±1/2 LSB INL AND DNL

SIX SPECIFIED INPUT RANGES

SERIAL OUTPUT

SINGLE +5V SUPPLY OPERATION

PIN-COMPATIBLE WITH 16-BIT ADS7809

USES INTERNAL OR EXTERNAL

REFERENCE

100mW MAX POWER DISSIPATION

0.3 SO-20

SIMPLE DSP INTERFACE

DESCRIPTION

The ADS7808 is a complete 12-bit sampling analog-to-digital

using state-of-the-art CMOS structures. It contains a 12-bit

capacitor-based SAR A/D with S/H, 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

ADS7808 also provides an output synchronization pulse for

ease of use with standard DSP processors.

The ADS7808 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 ADS7808 is available in a 0.3 SO-20, fully specified for

operation over the industrial –40°C to +85°C range.