SNAP Analog Output Modules

Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 •

www.opto22.com

SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com

© 2006–2014 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.

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Description

The SNAP-AOA-23 module provides a nominal output range of 4

mA to 20 mA. An external loop power source is required for the

current loops.

NOTE: Both channels share common reference terminals.

Common reference terminals are 3, 4, 7, and 8.

Specifications:

Part Number

Description

SNAP-AOA-23

Dual-channel analog output current loop

4–20 mA

Input

12-bit serial data

(each channel)

Outputs

4 to 20 mA (each channel)

Span

16 mA

Resolution

3.9 microamps

Response Time

(% of span/delta I/ delta time)

99.9%/15.98 mA/3 mS

DC Common Mode Rejection

>-120 dB

AC Common Mode Rejection

>-120 dB @ 60 Hz

Maximum Operating Common

Mode Voltage

250 V

Common Mode Resistance

>1000 Megohms

Accuracy

0.1% of Span

Gain Temperature Coefficient

50 PPM/°C

Offset Temperature Coefficient

20 PPM/°C

Module Power Requirements

5 Volts DC (±0.15) @ 150 mA

Loop Power Requirements

8 VDC (min) to

32 Volts DC (max)

Max. Loop

Resistance (Ohms)

@ Loop Supply

250

8V

450

12V

650

15V

1050

24V

1450

32V

Max. Loop Resistance formula

(Loop Voltage - 3)

0.02

Ambient Temperature:

Operating

Storage

0 °C to 70 °C

-40 °C to 85 °C

Torque, hold-down screws

4 in-lb (0.45 N-m)

Torque, connector screws

5.26 in-lb (0.6 N-m)

Wire size range

22 to 14 AWG

Agency Approvals

UL, CE, FM, RoHS, DFARS

Warranty

Lifetime

Dual-Channel Current Output

4–20 mA

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.