OPT-SNAP-AOA-23

SNAP-AOA-23 SNAP 2-Ch 4-20 mA Current Loop Analog Output Module

The SNAP-AOA-23 provides two channels of analog current output at a nominal range of 4-20 mA. An external loop
power source is required for the current loops. Although the two channels are not isolated from each other, the module
is transformer isolated and optically isolated from other modules and devices. The module is factory calibrated.
 
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for PC-
based control or for use as intelligent remote I/O for an Allen-Bradley RSLogix PLC system, such as ControlLogix,
MicroLogix, or CompactLogix.
 
If you need channel-to-channel isolation and loop sourcing, see SNAP-AOA-23-iSRC.
 

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 -25 °C to 85 °C
Agency Approvals	UL, CE, FM, RoHS, DFARS
Warranty	Lifetime

Rev: 04/13