Datasheet > ADS7881IRGZT

ADS7881IRGZT

更新时间： 2024-11-07 12:27:35

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
31页	831K
描述
12-BIT, 4-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER

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中文翻译

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数据手册

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ADS7881IRGZT 数据手册

ꢀ ꢁꢂ ꢃꢄ ꢄꢅ

SLAS400B − SEPTEMBER 2003 − REVISED NOVEMBER 2005

ꢅꢆ ꢇ ꢈꢉ ꢊꢋ ꢌꢇ ꢍ ꢂ ꢎꢂ

ꢏ ꢐꢑ ꢎꢐꢑ ꢒꢓ ꢂꢀ ꢓ ꢀ ꢔꢀꢏ ꢐꢕ ꢇ ꢊꢐ ꢇ ꢁꢉ ꢕ ꢉꢊꢀꢏ ꢖꢐ ꢔ ꢗꢒ ꢓꢊꢒ ꢓ

FEATURES

APPLICATIONS

4 MHz Sample Rate, 12-Bit Resolution

Zero Latency

Unipolar, Pseudo Differential Input, Range:

− 0 V to 2.5 V

High Speed Parallel Interface

71 dB SNR and −88.5 dB THD at 1 MHz I/P

Power Dissipation 95 mW at 4 MSPS

Nap Mode (10 mW Power Dissipation)

Power Down (10 mW)

Optical Networking (DWDM, MEMS Based

Switching)

Spectrum Analyzers

High Speed Data Acquisition Systems

High Speed Close-Loop Systems

Telecommunication

Ultra-Sound Detection

Internal Reference

Internal Reference Buffer

48-Pin TQFP and QFN Packages

DESCRIPTION

The ADS7881 is a 12-bit 4-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.

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 and QFN packages.

BYTE

SAR

Output

Latches

and

3-State

Drivers

+IN

−IN

CDAC

12/8-Bit Parallel

Data Output Bus

Comparator

CLOCK

REFIN

CONVST

Conversion

and

Control Logic

BUSY

2.5 V

REFOUT

Internal

Reference

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.

ꢎꢓ ꢐ ꢁꢘ ꢖ ꢊꢉ ꢐꢔ ꢁ ꢀꢊꢀ ꢙꢚ ꢛꢜ ꢝ ꢞꢟ ꢠꢙꢜꢚ ꢙꢡ ꢢꢣ ꢝ ꢝ ꢤꢚꢠ ꢟꢡ ꢜꢛ ꢥꢣꢦ ꢧꢙꢢ ꢟꢠꢙ ꢜꢚ ꢨꢟ ꢠꢤꢩ ꢎꢝ ꢜꢨꢣ ꢢꢠꢡ

ꢢ ꢜꢚ ꢛꢜꢝ ꢞ ꢠꢜ ꢡ ꢥꢤ ꢢ ꢙ ꢛꢙ ꢢ ꢟ ꢠꢙ ꢜꢚꢡ ꢥ ꢤꢝ ꢠꢪꢤ ꢠꢤ ꢝ ꢞꢡ ꢜꢛ ꢊꢤꢫ ꢟꢡ ꢉꢚꢡ ꢠꢝ ꢣꢞ ꢤꢚꢠ ꢡ ꢡꢠ ꢟꢚꢨ ꢟꢝ ꢨ ꢬ ꢟꢝ ꢝ ꢟ ꢚꢠꢭꢩ

ꢎꢝ ꢜ ꢨꢣꢢ ꢠ ꢙꢜ ꢚ ꢥꢝ ꢜ ꢢ ꢤ ꢡ ꢡ ꢙꢚ ꢮ ꢨꢜ ꢤ ꢡ ꢚꢜꢠ ꢚꢤ ꢢꢤ ꢡꢡ ꢟꢝ ꢙꢧ ꢭ ꢙꢚꢢ ꢧꢣꢨ ꢤ ꢠꢤ ꢡꢠꢙ ꢚꢮ ꢜꢛ ꢟꢧ ꢧ ꢥꢟ ꢝ ꢟꢞ ꢤꢠꢤ ꢝ ꢡꢩ

12 3 4 5 6 7...31

中文翻译

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与ADS7881IRGZT相关器件

型号	品牌	获取价格	描述	数据表
ADS7881IRGZTG4	TI	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQCC48, PLASTIC, QFN-48
ADS7882	TI	获取价格	12-BIT, 3-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER
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

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