Datasheet > ADS7862Y

ADS7862Y

更新时间： 2024-11-25 12:48:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
20页	706K
描述
Dual 500kHz, 12-Bit, 2 2 Channel Simultaneous Sampling

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ADS7862Y 数据手册

ADS7862

SBAS101B – JANUARY 1998 – REVISED AUGUST 2005

Dual 500kHz, 12-Bit, 2 + 2 Channel

Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTER

DESCRIPTION

FEATURES

The ADS7862 is a dual 12-bit, 500kHz analog-to-digital

converter (A/D) with 4 fully differential input channels grouped

into two pairs for high speed simultaneous signal acquisition.

Inputs to the sample-and-hold amplifiers are fully differential

and are maintained differential to the input of the A/D con-

verter. This provides excellent common-mode rejection of

80dB at 50kHz, which is important in high noise environ-

ments.

ꢀ 4 INPUT CHANNELS

ꢀ FULLY DIFFERENTIAL INPUTS

ꢀ 2µs TOTAL THROUGHPUT PER CHANNEL

ꢀ GUARANTEED NO MISSING CODES

ꢀ PARALLEL INTERFACE

ꢀ 1MHz EFFECTIVE SAMPLING RATE

ꢀ LOW POWER: 40mW

The ADS7862 offers parallel interface and control inputs to

minimize software overhead. The output data for each channel

is available as a 12-bit word. The ADS7862 is offered in an

TQFP-32 package and is fully specified over the –40°C to

+85°C operating range.

APPLICATIONS

ꢀ MOTOR CONTROL

ꢀ MULTI-AXIS POSITIONING SYSTEMS

ꢀ 3-PHASE POWER CONTROL

CH A0+

CH A0–

SAR

S/H

Amp

COMP

Interface

CDAC

CLOCK

CH A1+

Conversion

and

CH A1–

MUX

Control

BUSY

CONVST

REF_IN

Internal

2.5V

REF_OUT

Reference

Output

Registers

Data Output

CH B0+

CH B0–

S/H

Amp

COMP

CDAC

CH B1+

CH B1–

MUX

SAR

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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