FEATURES
SINGLE SUPPLY: 2.7V to 5V
4-CHANNEL SINGLE-ENDED OR
2-CHANNEL DIFFERENTIAL INPUT
UP TO 200kHz CONVERSION RATE
±1LSB MAX INL AND DNL
NO MISSING CODES
72dB SINAD
SERIAL INTERFACE
DIP-16 OR SSOP-16 PACKAGE
ALTERNATE SOURCE FOR MAX1247
ADS7841ES: +125°C Version

APPLICATIONS
DATA ACQUISITION
TEST AND MEASUREMENT
INDUSTRIAL PROCESS CONTROL
PERSONAL DIGITAL ASSISTANTS
BATTERY-POWERED SYSTEMS

DESCRIPTION
The ADS7841 is a 4-channel, 12-bit sampling Analog-to-
Digital Converter (ADC) with a synchronous serial interface.
The resolution is programmable to either 8 bits or 12
bits. Typical power dissipation is 2mW at a 200kHz throughput
rate and a +5V supply. The reference voltage (VREF) can
be varied between 100mV and VCC, providing a corresponding
input voltage range of 0V to VREF. The device includes
a shutdown mode which reduces power dissipation to under
15μW. The ADS7841 is tested down to 2.7V operation.
Low power, high speed, and on-board multiplexer make the
ADS7841 ideal for battery-operated systems such as personal
digital assistants, portable multi-channel data loggers,
and measurement equipment. The serial interface also provides
low-cost isolation for remote data acquisition. The
ADS7841 is available in a DIP-16 or a SSOP-16 package
and is specified over the –40°C to +125°C(1) temperature
range.