OPT-SNAP-AOA-3

SNAP-AOA-3 SNAP 1-Ch 4-20 mA Current Loop Analog Output Module

The SNAP-AOA-3 provides a single channel of digital-to-analog conversion. The module has a true differential (floating)
output that eliminates ground loops and has a nominal output range of 4-20 mA. The module is transformer isolated
and optically isolated from other modules and devices, and 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 MicroLogix or other RSLogix-based PLC
system, such as ControlLogix or CompactLogix.
 
For a similar module with two channels, see SNAP-AOA-23.
 

Input	12-bit serial data (each channel)
Outputs	4 to 20 mA (floating)
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 M W
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) @ 140 mA
Loop Power Requirements	10 Volts DC (min) to 32 Volts DC (max)
Max. Loop Resistance (Ohms) @ Loop Supply	250 10V	350 12V	950 24V	1350 32V
Max. Loop Resistance formula	(Loop Voltage - 5)          0.02
Ambient Temperature:   Operating   Storage	0 °C to 70 °C -25 °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)
Agency Approvals	UL, CE, FM, RoHS, DFARS
Warranty	Lifetime

Rev: 04/13