IC-OF [ICHAUS]

3-BIT OPTO ENCODER; 3位光电编码器


型号：	IC-OF
厂家：	IC-HAUS GMBH
描述：	3-BIT OPTO ENCODER 3位光电编码器光电编码器
文件：	总6页 (文件大小：97K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 1/6

FEATURES

APPLICATIONS

Optical position decoding for

Monolithic construction with integrated photodiodes ensures

excellent matching and technical reliability

Short track spacing of 600 ꢁm

incremental encoders using the

principle of differential scanning

Elimination of dark current effects through differential

scanning

Photocurrent amplifier with high cutꢀoff frequency

Comparators with precise signalꢀrelated hysteresis

Currentꢀlimited pushꢀpull outputs

Analog outputs as current source/sink additionally

Low power consumption from 5V supply voltage

Low board space requirements

CHIP

Options: extended temperature range to ꢀ40 °C,

customized packages, COB and reticle assembly

2.8mm × 2.08mm

BLOCK DIAGRAM

VCC

COMPARATOR

PUSH-PULL

OUTPUT

AMPLIFIER

DP0

DP1

DP2

DN0

DN1

DN2

ANALOG

OUTPUT

NI0

TRACK 0

COMPARATOR

PUSH-PULL

OUTPUT

AMPLIFIER

ANALOG

OUTPUT

NI1

TRACK 1

COMPARATOR

PUSH-PULL

OUTPUT

AMPLIFIER

ANALOG

OUTPUT

NI2

TRACK 2

BIAS

iC-OF

BLCC OF3C

GND

www.ichaus.com

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 2/6

DESCRIPTION

The iCꢀOF device is an optoelectronic detector IC for linear and angle measuring systems, such as shaft

encoders, for example.

Photodiodes, amplifiers, comparators and TTLꢀcompatible pushꢀpull output drivers are integrated

monolithically. Each of the 3 tracks is evaluated differentially; there are also analog outputs available.

The outputs are protected against ESD and shortꢀcircuit damage.

CHIP LAYOUT

dimensions in ꢁm; chip size 2.8mm × 2.08mm

470 ꢁm

490 ꢁm

alignment aids i 80ꢁm

VCC

DN0

DN1

DP0

die mark

DP1

DP2

NI0

NI1

300 ꢁm x 200 ꢁm

DN2 S2

NI2 GND

600 ꢁm

PAD DESCRIPTION

Name

Function

VCC

NI0

NI1

NI2

GND

+5V Supply Voltage

Track 0 Analog Current Output

Track 1 Analog Current Output

Track 2 Analog Current Output

Track 0 PushꢀPull Output

Track 1 PushꢀPull Output

Track 2 PushꢀPull Output

Ground

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 3/6

ABSOLUTE MAXIMUM RATINGS

Values beyond which damage may occur; device operation is not guaranteed.

Item Symbol Parameter

Conditions

Fig.

Unit

Min.

ꢀ0.3

ꢀ3

Max.

G001 VCC

G301 V(S)

G302 I(S)

G501 V(NI)

G502 I(NI)

E001 Vd()

Supply Voltage

Voltage at Outputs S0..2

VCC+0.3

Current in Outputs S0..2

V(S)< 0V or V(S)> VCC

Voltage at Analog Outputs NI0..2

Current in Analog Outputs NI0..2

ESDꢀSusceptibility at all pins

ꢀ0.3

ꢀ3

VCC+0.3

HBM, 100 pF discharged

through 1.5 kꢂ

TG1 Tj

TG2 Ts

Chip Temperature

ꢀ40

125

°C

Storage Temperature

see package specification

THERMAL DATA

Operating Conditions: VCC= 5V ±10%

Item Symbol Parameter

Conditions

Fig.

Unit

Min.

Typ.

Max.

T1 Ta

Operating Ambient Temperature

Range

see package specification

All voltages are referenced to ground unless otherwise noted.

All currents into the device pins are positive; all currents out of the device pins are negative.

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 4/6

ELECTRICAL CHARACTERISTICS

Operating Conditions: VCC= 5V ±10%; Tj= ꢀ40..125 °C, unless otherwise noted.

Item Symbol Parameter

Conditions

Fig.

Unit

Min.

Typ.

Max.

Total Device

001 VCC

Permissible Supply Voltage

4.5

5.5

002 I(VCC)

Supply Current in VCC,

Outputs S0..2 hi

I(DP0..7)= 30nA, I(DN0..7)= 3nA, 27

I(S0..7)= 0

2.3

003 I(VCC)

004 fo

Supply Current in VCC,

Outputs S0..2 lo

I(DP0..7)= 3nA, I(DN0..7)= 30nA, 27

I(S0..7)= 0

Cutꢀoff Frequency,

tracks 0..2

sinusoidal waveform,

I(DP0..7)= 3..30nA,

I(DN0..7)= 30..3nA

100

200

kHz

005 tp(DꢀS)

006 fo

Propagation Delay

see No. 4

2.5

1.5

ꢁs

Propagation Delay,

tracks 0..2

sinusoidal waveform,

I(DP0..7)= 6..60nA

I(DN0..7)= 60..6nA

kHz

007 tp(DꢀS)

Propagation Delay

see No. 6

ꢁs

Photodiodes and Amplifiers, tracks 0..2

101 Aph(D) Radiant Sensitive Area

102 S(λ)max Spectral Sensitivity

0.2 × 0.3

0.5

mm²

A/W

λ= 850nm

103 λar

104 I(D)

105 CM()

Range of Spectral Sensitivity

Se(λar)= 0.1×S(λ)max

500

0.85

1050

Permissible Photocurrent

Common Mode DPi to DNi

1.15

Difference Comparators, tracks 0..2

201 Hys

Hysteresis refered to

[I(DPi) + I(DNi)] /2

I(DPi, DNi)= 3..90nA

Vs()hi= VCCꢀV();

Push-Pull Outputs S0..2

301 Vs()hi

302 Vs()hi

303 Vs()lo

Saturation Voltage hi

0.9

I()= ꢀ40ꢁA

ꢀ40

0.81

0.69

0.58

0.51

125

Saturation Voltage hi

Saturation Voltage lo

Vs()hi= VCCꢀV();

I()= ꢀ400ꢁA

1.0

0.4

ꢀ40

0.92

0.83

0.74

0.68

125

I()= 1.6mA

ꢀ40

0.20

0.22

0.25

0.27

125

304 Isc()hi

305 Isc()lo

306 SRhi

ShortꢀCircuit Current hi

ShortꢀCircuit Current lo

SlewꢀRate hi

V()= 0V..VCCꢀ1.2V

V()= 0.4V..VCC

CL()= 30pF

ꢀ7

1.8

ꢀ4.6

7.3

ꢀ1.5

130

V/ꢁs

307 SRlo

SlewꢀRate lo

CL()= 30pF

330

V/ꢁs

115

308 Vc()hi

309 Vc()lo

Clamp Voltage hi

Clamp Voltage lo

Vc()hi= V()ꢀVCC; S= hi, I()= 3mA

S= lo, I()= ꢀ3mA

0.4

1.5

ꢀ1.5

ꢀ0.4

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 5/6

ELECTRICAL CHARACTERISTICS

Operating Conditions: VCC= 5V ±10%; Tj= ꢀ40..125 °C, unless otherwise noted.

Item Symbol Parameter

Conditions

Fig.

Unit

Min.

Typ.

Max.

Analog Outputs NI0..2

501 CR()

502 I0()

503 fo()

Current Ratio

I(NIi) / (I(DPi)ꢀI(DNi))

V(NIi)= 0.3V..VCCꢀ1.2V,

I(DPi)= 3..90nA, I(DNi)= 90..3nA

550

ꢀ1.5

100

850

1.5

720

Leakage Current

Cutꢀoff Frequency

V(NI)= 0.3V..VCCꢀ1.2V,

I(DPi,DNi)= 0

ꢁA

V(NIi)= constant,

kHz

sinussoidal waveform,

I(DPi)= 3..30nA, I(DNi)= 30..3nA

504 fo()

505 fo()

Cutꢀoff Frequency

V(NIi)= constant,

sinussoidal waveform,

I(DPi)= 6..60nA, I(DNi)= 60..6nA

200

kHz

R(VCC/NIi)= 50kꢂ,

R(NIi/GND)= 50kꢂ, CL()= 30pF

506 Vc(S)hi Clamp Voltage hi

507 Vc(S)lo Clamp Voltage lo

Vc()hi= V()ꢀVCC; I()= 3mA

I()= ꢀ3mA

0.4

1.5

ꢀ1.5

ꢀ0.4

APPLICATIONS INFORMATION

Wiring of the analog outputs NI0..2

The analog outputs each consist of two current sources in a pushꢀpull configuration. One of these works towards

GND as a sink, the other works as a source coming from VCC. The voltage swing at the output pins NI0..2 is

determined by the external wiring ꢀ the saturation voltage of the current sources must be taken into account.

The simplest configuration is to connect the outputs to a voltage divider consisting of two resistors, wired from

VCC against GND (with 50kꢂ respectively, for example). Any resulting load capacities can reduce the cutoff

frequency of the analog signals.

In view of the suppression of the supply voltage, however it may be preferable to use an opꢀamp as a currentꢀ

voltage converter (transconductance amplifier) if the reference potential is suitably stable.

This specification is for a newly developed product. iCꢀHaus therefore reserves the right to change or update, without notice, any information contained

herein, design and specification; and to discontinue or limit production or distribution of any product versions. Please contact iCꢀHaus to ascertain the

current data.

Copying ꢀꢀ even as an excerpt ꢀꢀ is only permitted with iCꢀHaus approval in writing and precise reference to source.

iCꢀHaus does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions

in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of

merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which

information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible

applications or areas of applications of the product.

iCꢀHaus conveys no patent, copyright, mask work right or other trade mark right to this product. iCꢀHaus assumes no liability for any patent and/or other

trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.

As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and specifically designed for appropriate use in

technical applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle

the range of use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade

statistics issued annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and

following exhibitions in Hanover (HannoverꢀMesse).

We understand suitable application of our published designs to be stateꢀofꢀtheꢀart technology which can no longer be classed as inventive under the

stipulations of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our

products can be put to.

iC-OF

3ꢀBIT OPTO ENCODER

Rev C1, Page 6/6

ORDERING INFORMATION

Type

Package

ꢀ

Order designation

iCꢀOF Chip

iCꢀOF

BLCC OF3C

BLCC OF3CꢀET

iCꢀOFꢀBLCC OF3C

iCꢀOF BLCC OF3CꢀET

For technical support, information about prices and terms of delivery please contact:

iC-Haus GmbH

Tel +49-6135-9292-0

Fax +49-6135-9292-192

http://www.ichaus.com

E-mail sales@ichaus.com

Am Kuemmerling 18

D-55294 Bodenheim

GERMANY

Appointed local distributors: http://www.ichaus.de/support_distributors.php

IC-OF [ICHAUS]

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