ADS7844

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
14页	205K
描述
12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER

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中文翻译

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ADS7844 数据手册

ADS7844

7844

12-Bit, 8-Channel Serial Output Sampling

ANALOG-TO-DIGITAL CONVERTER

DESCRIPTION

FEATURES

● SINGLE SUPPLY: 2.7V to 5V

The ADS7844 is an 8-channel, 12-bit sampling ana-

log-to-digital converter (ADC) with a synchronous

serial interface. Typical power dissipation is 3mW at

a 200kHz throughput rate and a +5V supply. The

reference voltage (V_REF) can be varied between 100mV

and V_CC, providing a corresponding input voltage

range of 0V to V_REF. The device includes a shutdown

mode which reduces power dissipation to under 1µW.

The ADS7844 is guaranteed down to 2.7V operation.

● 8-CHANNEL SINGLE-ENDED OR

4-CHANNEL DIFFERENTIAL INPUT

● UP TO 200kHz CONVERSION RATE

● ±1 LSB MAX INL AND DNL

● GUARANTEED NO MISSING CODES

● 72dB SINAD

● SERIAL INTERFACE

Low power, high speed, and on-board multiplexer

make the ADS7844 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 ADS7844 is available

in a 20-lead QSOP package and the MAX147 equiva-

lent 20-lead SSOP package and is guaranteed over the

–40°C to +85°C temperature range.

● 20-LEAD QSOP AND

20-LEAD SSOP PACKAGES

● ALTERNATE SOURCE FOR MAX147

APPLICATIONS

● DATA ACQUISITION

● TEST AND MEASUREMENT

● INDUSTRIAL PROCESS CONTROL

● PERSONAL DIGITAL ASSISTANTS

● BATTERY-POWERED SYSTEMS

CH0

CH1

CH2

SAR

DCLK

Eight

Channel

Multiplexer

CH3

CH4

Comparator

SHDN

DIN

Serial

Interface

and

CH5

CDAC

CH6

CH7

COM

V_REF

Control

DOUT

BUSY

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-1463D

Printed in U.S.A. July, 1999

12 3 4 5 6 7...14

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与ADS7844相关器件

型号	品牌	获取价格	描述	数据表
ADS7844E	BB	获取价格	12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7844E	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20
ADS7844E/2K5	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20 \| -40 to 85
ADS7844EB	BB	获取价格	12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7844EB	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20
ADS7844EB/2K5	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20
ADS7844EBG4	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20
ADS7844EG4	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DBQ \| 20
ADS7844N	TI	获取价格	12 位 8 通道串行输出采样模数转换器 \| DB \| 20
ADS7844N	BB	获取价格	12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER

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