OPBA303 - TT Electronics/Optek Technology

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B 02/13

Page 1 of 5

Photologic® Dual Channel Encoder

OPBA301, OPBA303

OPTEK Technology is TS 16949:2002 certified, any changes will be consistent with TS 16949:2002 procedures.

Features:

 Dual channel outputs for Quadrature output

 Open collector inverter outputs

 0.010” (0.254 mm) sensor apertures for high resolution

 Snap mount

Description:

The OPBA301 and OPBA303 device consists of an infrared emitting diode and a monolithic integrated circuit

which incorporates two independent photodiodes, linear amplifiers, Schmitt trigger circuits and output transistors.

The OPBA301 features a dual TTL output that is compatible with TTL/LSTTL and can drive 8 TTL loads. The

OPBA303 has a 10K  pull-up output with EMI protection on each channel.

Applications include linear and rotary encoders with high resolution provided by internal 0.010” (0.254 mm)

apertures located in front of the Photologic® sensor on 0.040” (1.02 mm) center line spacing.

Custom electrical design, wire length and connectors are available. Contact your local representative or OPTEK

for more information.

Product Photo Here

Applications:

Mechanical switch replacement

Speed and direction indication

Mechanical limit indication

Rotary encoders

Edge sensing

Sliding door automotive and

liftgate applications

Ordering Information

Part

Number

LED Peak

Wavelength

Sensor

Output

Slot Width /

Depth

Aperture

Emitter/Sensor

Wire

Length

OPBA301

890 nm

Dual TTL

0.200" / 0.350” 0.05” / 0.01"

OPBA303 10K Pull-Up

24”

22 AWG Flat

VREG 4-Vcc

3-Out B

2-Out A

1-GND

AMP

OPBA301

AMP

1-GND

2-Out A

3-Out B

4-Vcc

VREG

10K

0.01µf

OPBA303

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B 02/13

Page 2 of 5

Photologic® Dual Channel Encoder

OPBA301, OPBA303

OPTEK Technology is TS 16949:2002 certified, any changes will be consistent with TS 16949:2002 procedures.

Absolute Maximum Ratings (TA = 25° C unless otherwise noted)

Storage & Operating Temperature Range -40°C to +85° C

Input Diode

Forward DC Current 50 mA

Reverse DC Voltage 2.0 V

Power Dissipation(1) 100 mW

Output Photologic®

Supply Voltage, VCC 5.5 V

Voltage at Output

OPBA301

OPBA303

18 V

5.5V

Power Dissipation(2) 200 mW

Sinking Output Current 40 mA

Pin # Description

1 Output-A

2 Output-B

3 VCC

4 Ground

CONTAINS POLYSULFONE

To avoid stress cracking, we suggest using

ND Industries’ Vibra-Tite for thread-locking.

Vibra-Tite evaporates fast without causing

structural failure in OPTEK’s molded plastics.

INCHES

[ MILLIMETERS]

DIMENSIONS ARE IN:

OPBA301, OPBA303

B A

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B 02/13

Page 3 of 5

Photologic® Dual Channel Encoder

OPBA301, OPBA303

OPTEK Technology is TS 16949:2002 certified, any changes will be consistent with TS 16949:2002 procedures.

Electrical Characteristics (TA = 25° C unless otherwise noted)

SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS

Input Diode

VCC Supply Voltage 4.5 - 5.5 V

Output Photologic® Sensor

ICCL

Supply Current

Both Outputs Low

(both photodiodes irradiated)

- 25.5 29 mA Unblocked condition (no load on output)

ICCH

Supply Current

Both Outputs High

(both photodiodes shaded)

- 20.5 23 mA Blocked condition (no load on output)

ICCM

Supply Current

Mixed Output States

(one high, one low)

- 23 - mA

1 blocked condition

1 unblocked condition

IOH High Level Output Current - 1 30 µA VOH = 16 V (blocked condition)

VOL Low Level Output Voltage - 0.21 0.40 V IOL = 12.8 mA (unblocked condition)

tPHL, tPLH

Propagation Delay

Output High to Low

Output Low to High

µs

VCC = 5 V, RL = 360 ,

f = 10 kHz, DC = 50%

tr, tf Output Rise Time

Output Fall Time

ns RL = 360 

Supply Current vs Ambient Temperature

-50 -25 0 25 50 75 100

TA - Ambient Temperature (°C)

Supply Current - I CCL, ICCH (mA)

VCC = 5 V

No Load on Output

λ = 890 nm

ICCL

ICCH

Low Level Output vs Ambient Temperature

0.1

0.2

0.3

0.4

0.5

-50 -25 0 25 50 75 100

- Ambient Temperature (°C)

Low Level Output Current - V

(volts)

= 4.5 V

= 12.8 mA

λ = 890 nm

= 0.5 mW/cm

High Level Output vs Ambient Temperature

-50 -25 0 25 50 75 100

- Ambient Temperature (°C)

High Level Output Current - I

(nA)

= 4.5 V

= 18 V

= 0

mW/cm

Performance Curves

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B 02/13

Page 4 of 5

Photologic® Dual Channel Encoder

OPBA301, OPBA303

OPTEK Technology is TS 16949:2002 certified, any changes will be consistent with TS 16949:2002 procedures.

Propagation Delay vs Ambient Temperature

-50 -25 0 25 50 75 100

TA - Ambient Temperature (°C)

Propagation Delay - t PHL, tPLH (µs)

Amplitude = 0.5 mW/cm

= 5 V

= 360 Ώ

λ = 890 nm

f = 10 kHz

Duty Cycle = 50%

PLH

PHL

Rise and Fall Time vs Ambient Temperature

vs Output Load

100

150

200

250

-50 -25 0 25 50 75 100

- Ambient Temperature (°C)

Switching Time - t

, t

(ns)

= 5 V

λ = 890 nm

f = 10 kHz t

, R

= 2

Amplitude = 0.5 mW/cm

, R

= 1

, R

= 360 Ώ

1 k Ώ

2 kΏ

Performance Curves

Ch-A

Ch-B

0-1

1-1

1-0

0-0

1-0

1-1

0-1

0.06 [1.50] MIN.

0.09 [2.20]0.09 [2.20]

0.07 [1.80]0.07 [1.80] 0.07 [1.80]

Clear

Hole

Clear

Hole

Clear

Hole

Dimensions are in inches [mm]

Ideal Target Size & Spacing

For Linear or Circular Targets

Sensor Output(s)

Please consult OPTEK for target design and

sensor location relative to the target.

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B 02/13

Page 5 of 5

Photologic® Dual Channel Encoder

OPBA301, OPBA303

OPTEK Technology is TS 16949:2002 certified, any changes will be consistent with TS 16949:2002 procedures.

Issue Change Description Approval Date

A Initial Release Tom Osborne 2/03/06

A.1 Minor changes to the first paragraph on page 1 Tom Osborne 3/29/06

A.2 Changed part numbers OPBA301 & OPBA302 on page 2 Tom Osborne 4/10/06

A.3 Added new DIMENSIONS statement and repositioned items on the

pages to match other data sheets. Used smaller new logo. Fixed

minor typos on page 2.

07/28/06

A.4 Removed OPBA300, OPBA302, changed verbiage to accommodate

the change, removed Package 1.

Tom Osborne 02/21/2013