Texas Instruments ADS8361 Handleiding

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Dual, 500kSPS, 16-Bit, 2 + 2 Channel,

Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

●2 SIMULTANEOUS 16-BIT DACs

●4 FULLY DIFFERENTIAL INPUT CHANNELS

●2

μs THROUGHPUT PER CHANNEL

●4

μs TOTAL THROUGHPUT FOR FOUR CHANNELS

●LOW POWER: 150mW

●INTERNAL REFERENCE

●FLEXIBLE SERIAL INTERFACE

●16-BIT UPGRADE TO THE 12-BIT ADS7861

●PIN COMPATIBLE WITH THE ADS7861

●OPERATING TEMPERATURE RANGE:

–40

°C to +125°C

APPLICATIONS

●MOTOR CONTROL

●MULTI-AXIS POSITIONING SYSTEMS

●3-PHASE POWER CONTROL

DESCRIPTION

The ADS8361 is a dual, 16-bit, 500kSPS, Analog-to-Digital

(A/D) converter with four 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 differentially 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 environments.

The ADS8361 offers a high-speed, dual serial interface and

control inputs to minimize software overhead. The output data

for each channel is available as a 16-bit word. The ADS8361

is offered in SSOP-24 and QFN-32 (5x5) packages and is fully

specified over the –40°C to +125°C operating range.

SAR

Serial

Interface

COMP

CLOCK

A0

M1

M0

CONVST

CS

RD

BUSY

SERIAL DATA B

SERIAL DATA A

CDAC

Internal

2.5V

Reference

SHA

CH A0–

CH A0+

REF

IN

CH A1–

CH A1+

SAR

COMP

CDAC

SHA

CH B0–

CH B0+

CH B1–

CH B1+

REF

OUT

ADS8361

SBAS230E – AUGUST 2002 – REVISED AUGUST 2007

www.ti.com

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.

Copyright © 2002-2007, Texas Instruments Incorporated

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 specificaties