Opto 22 DA3, DA3T, DA8 Data Sheet

Standard Analog Current
Output Modules

Features

Provides a a single channel of optically- isolated digital-

to-current conversion

The “T” module is transformer isolated, which
eliminates any ground loop problems

Modules plug into any Standard Classic analog I/O rack
and are secured by a captive screw

Description

The current output modules provide a single channel of
optically- isolated digital-to-current conversion. The “T”
module is transformer isolated, which eliminates any ground
loop problems. The DA3 and DA8 modules are UL approved.

Specifications

DA3 DA3T DA8

Output Current 4-20 mA 4-20 mA 4-20 mA
Minimal Current Draw 1.6 mA 1.6 mA 1.6 mA
Accuracy

Power Requirements

Agency Approvals UL, CE, RoHS, DFARS CE, RoHS, DFARS UL, CE, RoHS, DFARS

μA 16 μA 20 μA

16
20 mA at +15 (+/- 0.25) VDC

10 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC

22 mA at +15 (+/- 0.25) VDC
22 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC

Modules plug into any Standard Classic analog I/O rack and
are secured by a captive screw.

20 mA at +15 (+/- 0.25) VDC
10 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC

Standard Analog Current Output Modules

Response Time Full scale step change in 3 ms
Resolution 12 bits
Isolation

Input-to-Output
Input-to-Analog Supply (T Modules)

Temperature

Operating
Storage

DA3T: All of the lower A terminals on the mounting rack are tied together.
These provide a convenient tie point for shared loop source return. To use the
DA3T with a common loop supply, connect any one lower A terminal to the
shared loop source "-", then jumper upper A to lower A for each DA3T.

4,000 Vrms
4,000 Vrms

0 °C to 70 °C

- 25 °C to 85 °C

Part Numbers

Part Description

DA3 4-20 MA Output
DA3T 4-20 MA Output Isolated
DA8 0-20 MA Output

© 2011–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or regist ered trademarks of their respective companies or organiz ations.

Form 0442-140410

PAG E

1

DATA SHEET

Connections

Standard Analog Current Output Modules

Standard Analog Current Output Modules

DATA SHEET

Form 0442-140410

PAG E

2

© 2011–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.