Allen Bradley 1746-NI4 SLC 500 Analog Input Module

Converter Specifications

• Resolution: 16 bit
• Repeatability: ±1 LSB
• Location of LSB in I/O image word: 0000 0000 0000 0001
• Non-linearity: 0.01%
• Common Mode Voltage Range: -20 to +20 volts
• Common Mode Rejection at 0 to 10 Hz (min.): 50 dB
• Common Mode Rejection at 60 Hz (min.): 105 dB
• Normal Mode Rejection at 60 Hz (min.): 55 dB
• Channel Bandwidth: 10 Hz
• Step Response: 60 ms at 95%
• Conversion Method: Delta-Sigma Modulation
• Impedance to ANL COM: 380K ohms
• Impedance channel to channel: 760K ohms

Input Specifications 

• Input Range (Normal Operation): -20 to +20 mA
• Absolute Maximum Input Current: -30 to +30 mA
• Absolute Maximum Input Voltage: ±7.5V dc or 7.5V ac RMS
• Current Input Coding: -20 to +20 mA corresponds to -16,384 to +16,384
• Input Impedance: 250 Ohms
• Resolution: 1.22070 µA per LSB
• Full Scale: 20 mA
• Overall Accuracy at +25°C (77°F) (max.): ±0.365% of full scale
• Overall Accuracy at 0° to +60°C (32° to 140°F) (max.): ±0.642% of full scale
• Overall Accuracy Drift (max.): +79 ppm/5°C of full scale
• Gain Error at +25°C (77°F) (max.): +0.323%
• Gain Error at 0° to +60°C (32° to 140°F) (max.): ±0.556%
• Gain Error Drift (max.): ±67 ppm/°C
• Offset Error at +25°C (77°F) (max.) (lin = 0, Vcm = 0): ±7 LSB
• Offset Error at 0° to +60°C (32° to 140°F) (max.) (lin = 0, Vcm = 0): ±14 LSB
• Offset Error Drift (max.) (lin = 0, Vcm = 0): ±0.20 LSB/°C