FEATURES
BIPOLAR INPUT RANGE
PIN-FOR-PIN COMPATIBLE WITH THE
ADS7844 AND ADS8344
SINGLE SUPPLY: 2.7V to 5V
8-CHANNEL SINGLE-ENDED OR
4-CHANNEL DIFFERENTIAL INPUT
UP TO 100kHz CONVERSION RATE
85dB SINAD
SERIAL INTERFACE
QSOP-20 AND SSOP-20 PACKAGES

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

DESCRIPTION
The ADS8345 is an 8-channel, 16-bit, sampling
Analog-to-Digital (A/D) converter with a synchronous serial
interface. Typical power dissipation is 8mW at a 100kHz
throughput rate and a +5V supply. The reference voltage
(VREF) can be varied between 500mV and VCC/2, providing a
corresponding input voltage range of ±VREF. The device
includes a shutdown mode which reduces power dissipation
to under 15μW. The ADS8345 is ensured down to 2.7V
operation.
Low-power, high-speed, and an onboard multiplexer make
the ADS8345 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
ADS8345 is available in a QSOP-20 or SSOP-20 package
and is ensured over the –40°C to +85°C temperature range.