Datasheet > ADS7863

ADS7863

更新时间： 2024-09-30 04:48:51

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
30页	663K
描述
Dual, 1.5MSPS, 12-Bit, 2 + 2 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS7863 数据手册

ADS7863

SBAS383–JUNE 2007

Dual, 1.5MSPS, 12-Bit, 2 + 2 Channel, Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

•

Four Fully- or Six Pseudo-Differential Inputs

The ADS7863 is

dual, 12-bit, 1.5MSPS,

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

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 80dB at 50kHz, which is

SINAD: 70dB (min), THD: –75dB (max)

Programmable and Buffered Internal 2.5V

Reference

•

Flexible Power-Down Features

Variable Power Supply Ranges

Low Power Operation: 40mW at 5V

critical performance characteristic in noisy

Operating Temperature Range: –40°C to

+125°C

environments.

The ADS7863 is pin-compatible with the ADS8361,

but offers additional features such as

programmable reference output, flexible supply

voltage (2.7V to 5.5V for AV_DDand 1.65V to 5.5V for

BV_DD), a pseudo-differential input multiplexer with

three channels per ADC, and several power-down

features.

•

Pin-Compatible with ADS7861 and ADS8361

(SSOP package)

APPLICATIONS

•

Motor Control

Multi-Axis Positioning Systems

Three-Phase Power Control

The high-speed, dual serial interface is also

pin-compatible with the ADS7861 while offering

additional flexibility. 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.

PRODUCT PREVIEW information concerns products in the

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.

12 3 4 5 6 7...30

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与ADS7863相关器件

型号	品牌	获取价格	描述	数据表
ADS7863_08	TI	获取价格	Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVE
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

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