ADS7842

更新时间： 2024-11-24 22:53:39

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
13页	141K
描述
12-Bit, 4-Channel Parallel Output Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS7842 数据手册

ADS7842

For most current data sheet and other product

information, visit www.burr-brown.com

12-Bit, 4-Channel Parallel Output Sampling

ANALOG-TO-DIGITAL CONVERTER

DESCRIPTION

FEATURES

● SINGLE SUPPLY: 2.7V to 5V

● 4-CHANNEL INPUT MULTIPLEXER

● UP TO 200kHz SAMPLING RATE

● FULL 12-BIT PARALLEL INTERFACE

● ±1 LSB INL AND DNL

The ADS7842 is a complete, 4-channel, 12-bit analog-

to-digital converter (ADC). It contains a 12-bit, ca-

pacitor-based, SAR A/D with a sample-and-hold am-

plifier, interface for microprocessor use and parallel,

three-state output drivers. The ADS7842 is specified

at a 200kHz sampling rate while dissipating only

2mW of power. The reference voltage can be varied

from 100mV to V_CCwith a corresponding LSB reso-

lution from 24µV to 1.22mV. The ADS7842 is guar-

anteed down to 2.7V operation.

● GUARANTEED NO MISSING CODES

● 72dB SINAD

● LOW POWER: 2mW

● SSOP-28 PACKAGE

Low power, high speed and an on-board multiplexer

make the ADS7842 ideal for battery-operated sys-

tems such as portable, multi-channel dataloggers and

measurement equipment. The ADS7842 is available

in a SSOP-28 package and is guaranteed over the

–40°C to +85°C temperature range.

APPLICATIONS

● DATA ACQUISITION

● TEST AND MEASUREMENT

● INDUSTRIAL PROCESS CONTROL

● MEDICAL INSTRUMENTS

● LABORATORY EQUIPMENT

SAR

Three

State

Parallel

AIN0

AIN1

AIN2

AIN3

ADS7842

4-Channel

MUX

Data Bus

Output

Latches

and

Three

State

CDAC

CLK

BUSY

Comparator

Drivers

V_REF

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706

•

Tel: (520) 746-1111

Twx: 910-952-1111 Internet: http://www.burr-brown.com/

•

Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

PDS-1484B

Printed in U.S.A. March, 2000

12 3 4 5 6 7...13

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