FEATURES
20μs max CONVERSION TIME
SINGLE +5V SUPPLY OPERATION
PIN-COMPATIBLE WITH 16-BIT ADS7813
EASY-TO-USE SERIAL INTERFACE
0.3" DIP-16 AND SO-16
±0.5LSB max INL AND DNL
72dB min SINAD
USES INTERNAL OR EXTERNAL
REFERENCE
MULTIPLE INPUT RANGES
35mW max POWER DISSIPATION
NO MISSING CODES
50μW POWER DOWN MODE

APPLICATIONS
DATA ACQUISITION SYSTEMS
INDUSTRIAL CONTROL
TEST EQUIPMENT
DIGITAL SIGNAL PROCESSING

DESCRIPTION
The ADS7812 is a low-power, single +5V supply, 12-bit
sampling analog-to-digital converter. It contains a complete
12-bit capacitor-based SAR A/D with a sample/hold, clock,
reference, and serial data interface.
The converter can be configured for a variety of input ranges
including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high
impedance 0.3V to 2.8V input range is also available (input
impedance > 10MΩ). For most input ranges, the input
voltage can swing to +16.5V or –16.5V without damage to
the converter.
A flexible SPI compatible serial interface allows data to be
synchronized to an internal or external clock. The ADS7812
is specified at a 40kHz sampling rate over the –40°C to
+85°C temperature range. It is available in a 0.3" DIP-16 or
an SO-16 package.