AEAS-7000 datasheet, PDF - EEWORLD Datasheet

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AEAS-7000: DescriptionSINGLE, 13 CHANNELS, ROTARY OPTICAL POSITION ENCODER; CategoryLED optoelectronic/LED photoelectric; File Size146KB，8 Pages; ManufacturerHP（Keysight）; Websitehttp://www.semiconductor.agilent.com/

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AEAS-7000 Overview

SINGLE, 13 CHANNELS, ROTARY OPTICAL POSITION ENCODER

AEAS-7000 Parametric

Parameter Name	Attribute value
Maker	HP（Keysight）
Reach Compliance Code	unknown
Configuration	SINGLE, 13 CHANNELS
Number of functions	1
Maximum operating temperature	100 °C
Minimum operating temperature	-40 °C
Optoelectronic device types	ROTARY/LINEAR POSITION ENCODER
Base Number Matches	1

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Agilent AEAS-7000

Plug and Play Ultra-Precision

Absolute Encoder 16-bit Gray Code

Data Sheet

Features

Description

The encoder IC consists of 13

signal photo diode channels and

1 monitor photo diode channel

and is used for the optical

reading of rotary carriers (i.e.,

discs). The photodiodes are

accompanied with precision

amplifiers plus additional

circuitry.

The monitor channel is used to

drive a constant current source

for the highly collimated IR

illumination system.

Functional Description

Background

The 13 signal channels are set up

as:

1. Two precision defining signals

(A0, A09), which are two 90°

electrical shifted sine, cosine

signals. These signals are

conditioned to be compensated

for offset and gain errors.

After conditioning they are on

chip interpolated (4 bit) and

computed to an absolute 6 bit

Gray code. Additionally, these

Sin/Cos signals can be tapped

as two true-differential analog

outputs to be used at the

system designer’s choice.

• Minumum mechanical alignment

during installation

• 2 Sine/Cosine true differential

outputs with 1024 periods for unit

alignment

• Integrated highly collimated

illumination system

• 11 digital tracks plus 2 sin/cos

tracks generate precise 16 bit Gray

code

• Ultra fast, 1 µs cycle for serial data

output word equals 16 MHz

• On-chip interpolation and code

correction to compensate for

mounting tolerance

• MSB can be inverted for changing

the counting direction

• Internally built in monitor track for

tracking the light level

• Watch dog with alarm output

• –25°C to +85°C operating temp.

Applications

• Rotary application up to 16 bit/

360° absolute position

• Rotary application up to 11 bit user

defined code patterns

• Cost effective solution for direct

integration into OEM systems

2. 11 analog (A1-A11) channels

which are directly digitized

by precison comparators with

hysterisis tracking. The

digitized signals are called

D1-D11.

An internal correction and

synchronization module allows

the composition of a true 16 bit

gray code by merging the data

bits of 1) and 2) by still keeping

the code monotony.

There is a Gray code correction

feature for this encoder to

counter any codewheel

imperfection or misalignment.

This Gray code correction can

be disabled/enabled by the pin

KORR.

The gain and offset conditioning

value of the sine and cosine

wave has been on-chip preset

by factory. This will

compensate for mechanical

sensor misalignment error.

AEAS-7000 Related Products

	AEAS-7000	AEAS-7000-1GSD0	AEAS-7000-1GSG0
Description	SINGLE, 13 CHANNELS, ROTARY OPTICAL POSITION ENCODER	SINGLE, 13 CHANNELS, ROTARY OPTICAL POSITION ENCODER	SINGLE, 13 CHANNELS, ROTARY OPTICAL POSITION ENCODER
Number of functions	1	1	1
Maximum operating temperature	100 °C	85 Cel	85 °C
Minimum operating temperature	-40 °C	-25 Cel	-25 °C
Maker	HP（Keysight）	-	HP（Keysight）
Reach Compliance Code	unknown	-	unknown
Configuration	SINGLE, 13 CHANNELS	-	SINGLE, 13 CHANNELS
Optoelectronic device types	ROTARY/LINEAR POSITION ENCODER	-	ROTARY POSITION ENCODER
Base Number Matches	1	-	1

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