ADS7882

更新时间： 2024-11-09 06:36:27

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
29页	652K
描述
12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER

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ADS7882 数据手册

ADS7882

www.ti.com ........................................................................................................................................................................................... SLAS630–DECEMBER 2008

12-BIT, 3-MSPS

LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

•

3-MHz Sample Rate, 12-Bit Resolution

Zero Latency

The ADS7882 is a 12-bit 3-MSPS A-to-D converter

with 2.5-V internal reference. The device includes a

capacitor based SAR A/D converter with inherent

sample and hold. The device offers a 12-bit parallel

interface with an additional byte mode that provides

easy interface with 8-bit processors. The device has

a pseudo-differential input stage.

Unipolar, Pseudo Differential Input, Range:

–

0 V to 2.5 V

•

High-Speed Parallel Interface

69.5 dB SNR at 100 kHz I/P

Power Dissipation 85 mW at 3 MSPS

Nap Mode (10 mW Power Dissipation)

Power Down (10 µW)

The –IN swing of ±200 mV is useful to compensate

for ground voltage mismatch between the ADC and

sensor and also to cancel common-mode noise. With

nap mode enabled, the device operates at lower

power when used at lower conversion rates. The

device is available in 48-pin TQFP package.

Internal Reference

Internal Reference Buffer

48-Pin TQFP Package

APPLICATIONS

BYTE

SAR

Output

Latches

and

3-State

Drivers

•

Optical Networking (DWDM, MEMS Based

Switching)

+IN

−IN

CDAC

12/8-Bit Parallel

Data Output Bus

•

Spectrum Analyzers

Comparator

CLOCK

REFIN

High Speed Data Acquisition Systems

High Speed Close-Loop Systems

Telecommunication

CONVST

Conversion

and

Control Logic

BUSY

2.5 V

REFOUT

Internal

Reference

Ultra-Sound Detection

PWD/RST

A_PWD

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...29

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与ADS7882相关器件

型号	品牌	获取价格	描述	数据表
ADS7882_14	TI	获取价格	12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER
ADS7882IPFBR	TI	获取价格	12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER
ADS7882IPFBT	TI	获取价格	12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883	BB	获取价格	16-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DI
ADS7883	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883_08	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883_14	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883S	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883SB	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER
ADS7883SBDBVR	TI	获取价格	12-BIT, 3-MSPS, MICROPOWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTER

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