AD2S46_15 datasheet, PDF - EEWORLD Datasheet

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AD2S46_15: DescriptionLOW COST 16 BIT SYNCHRO RESOLVER TO DIGITAL CONVERTER; File Size3MB，8 Pages; ManufacturerADI; Websitehttps://www.analog.com

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AD2S46_15 Overview

LOW COST 16 BIT SYNCHRO RESOLVER TO DIGITAL CONVERTER

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ANALOG DEVICES fAX-ON-DEHAND HOTLINE

Page

-..

ANALOG

DEVICES

FEATURES

1.3 Arc Minute Accuracy

16-81t Resolution

Small 28-Pin Ceramic DIP

Low Cost

APPLICATIONS

Gimbal/Gyro Control Systems

Radar System

Engine Controllers

Sonar

Military Servo Control Systems

Fire Control Systems

Avionic Systems

Antenna Monitoring

CNC Machine Tooling

LowCost, 6-BitSynchro/

Resolver

-to-Digital

Converter

AD2S46

The device incorporates a high accuracy differential conditioning

circuit for signal inputs providing more than 74 dB of common-

mode rejection. Options are available for both synchro and re-

solver format inputs. The convener outpUt is via a tristate

transparent latch allmving data to be read without interruprion

of converter operation.

Digital data transfer is accommodated by an ENABLE input

which controls the tristate outpUts and presents the data to the

bus when taking from a HI to a LO statc.

An INHIBIT precedes the ENABLE inpUt and freezes the data

transfer from the up-down counter to the oUtput latches. This

action does not interrupt the operation of the tracking loop. Re-

leasing the HI/HIBIT aUtomatical1ygenerates a data refresh. A

BYTE SELECT input provides the facility for interfacing to an

8- or 16-bit bus system.

OBS

RHO

Rla

GENERAL DESCRIPTION

The AD2S46 series are 16-bit, continuous tracking synchrol

resolver-to-digital conveners. They have been designed specifi-

cally for applicarions where space and performance are al a pre-

mium. Each 28-pin hybrid device uses a Type 2 servo loop

tracking converter with a ratiometTic conversion technique to

provide excellent noise immunity, repeatability and tolerance of

long lead lengths.

The core of each conversion is performed by a state of the art

monolithic integrated circuit manufactured in Analog Devices'

proprietary BiMOS II process which combines the advantage of

low power CMOS digital logic with bipolar linear circuits. The

use of these ICs keeps the internal component count low provid-

ing both packaging which reflects LSI monolithic standards and

ensures high reliability.

FUNCTIONAL

REFERENCE

CONDITIONER

REF

OLE

MODELS AVAILABLE

The AD2S46 series is available in 2 accuracy grades;

AD2S46TD 16 Bits:!: 1.3 arc mins -55°C to .t 125cC

AD2S46SD 16 Bits :t 2.6 arc mim - 55°C to T 125°C

Each grade has options available which wiIJ interface to standard

synchros and resolvers.

BLOCK DIAGRAM

-vs

+Vs

GND

AD2S46

PHASE

SENSITIVE

DETECTOR

INTEGRA TOR

UP/DOWN

COUNTER

All components are 100% tested at

-.-

55°C, + 25°C, and -+- 2SoC.

Devices processed to high reliability screening standards (Suftix

B) receive further levels of testing and screening to ensure high

levels of reliability. Full ordering information is given on the

back page of this data sheet.

RESOLVERI

SYNCHRO

CONDITIONER

HIGH

DYNAMIC

RANGE VCO

BYTE

SELECT

ENAiiLE

Signature

INHIBIT

REV. 0

DB1 TO DB16

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use; nor for any infringements of patents Drother rights of third parties

which may result from its use. No license is granted by implication Dr

otherwise under any patent or patent rights of Analog

Devices.

One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax:

617/326-8703

Twx; 710/394-6577

Telex: 924491

Cable:

ANALOG NORWOODMASS

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