ADS7841EB/2K5.B中文资料德州仪器数据手册PDF规格书

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.