Datasheet > ADS7863_08

ADS7863_08

更新时间： 2024-11-25 04:48:51

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
40页	1218K
描述
Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS7863_08 数据手册

ADS7863

www.ti.com

SBAS383B–JUNE 2007–REVISED MARCH 2008

Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

•

Four Fully- or Six Pseudo-Differential Inputs

The ADS7863 is

dual, 12-bit, 2MSPS,

analog-to-digital converter (ADC) with four fully

differential or six pseudo-differential input channels

grouped into two pairs for high-speed, simultaneous

signal acquisition. Inputs to the sample-and-hold

(S/H) amplifiers are fully differential and are

maintained differential to the input of the ADC. This

architecture provides excellent common-mode

rejection of 72dB at 100kHz, which is a critical

performance characteristic in noisy environments.

•

SNR: 71dB, THD: –81dB

Programmable and Buffered Internal 2.5V

Reference

•

Flexible Power-Down Features

Variable Power-Supply Ranges: 2.7V to 5.5V

Low-Power Operation: 45mW at 5V

Operating Temperature Range: –40°C to

+125°C

The ADS7863 is pin-compatible with the ADS7861,

•

Pin-Compatible with ADS7861 and ADS8361

(SSOP package)

but offers additional features such as

programmable reference output, flexible supply

voltage (2.7V to 5.5V for AV_DDand BV_DD), a

pseudo-differential input multiplexer with three

channels per ADC, and several power-down features.

APPLICATIONS

•

Motor Control

Multi-Axis Positioning Systems

Three-Phase Power Control

The ADS7863 is offered in an SSOP-24 and a

4x4mm QFN-24 package. It is specified over the

extended operating temperature range of –40°C to

+125°C.

SAR

BV_DD

AV_DD

SDOA

SDOB

CHA0+

CHA0-

Input

CDAC

S/H

MUX

CHA1+

CHA1-

Comparator

SDI

CLOCK

CHB0+

CHB0-

Input

CDAC

S/H

MUX

CHB1+

BUSY

CHB1-

Comparator

CONVST

REF_IN

BGND

SAR

REF_OUT

AGND

10-Bit DAC

2.5V Reference

Functional Block Diagram

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.

All trademarks are the property of their respective owners.

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...40

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与ADS7863_08相关器件

型号	品牌	获取价格	描述	数据表
ADS7863_14	TI	获取价格	Dual, 2MSPS, 12-Bit, 2 2 or 3 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERT
ADS7863A	TI	获取价格	双路、2MSPS、12 位、2+2 或 3+3 通道、同步采样 SAR ADC
ADS7863ADBQ	TI	获取价格	双路、2MSPS、12 位、2+2 或 3+3 通道、同步采样 SAR ADC \| DBQ
ADS7863ADBQR	TI	获取价格	双路、2MSPS、12 位、2+2 或 3+3 通道、同步采样 SAR ADC \| DBQ
ADS7863ARGER	TI	获取价格	双路、2MSPS、12 位、2+2 或 3+3 通道、同步采样 SAR ADC \| RGE
ADS7863ARGET	TI	获取价格	双路、2MSPS、12 位、2+2 或 3+3 通道、同步采样 SAR ADC \| RGE
ADS7863EVM	TI	获取价格	Full-featured evaluation board
ADS7863I	BB	获取价格	Dual, 1.5MSPS, 12-Bit, 2 + 2 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7863I	TI	获取价格	Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVE
ADS7863IDBQ	BB	获取价格	Dual, 1.5MSPS, 12-Bit, 2 + 2 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER

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