Mitsubishi A68ADC — The Mitsubishi A68ADC MELSEC-A module is an analog-to-digital converter module with versatile input options

Part number	A68ADC
Brand	Mitsubishi
Description	The Mitsubishi A68ADC MELSEC-A module is an analog-to-digital converter module with versatile input options
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A68ADC
Weight	2.25 lbs (1.02 kg)
Model Type	Analog-to-Digital Converter Module
Analog Input	Voltage: -10 to 0 to +10 VDC (input resistance: 30 kilohms); Current: +4 to +20 mADC (input resistance: 250 ohms)
Digital Output	16-bit, signed binary (11-bit data part); -2048 to +2047
I/O Characteristics	Analog Inputs: +10V, +5V or +20 mA, 0V or +4 mA, -5V or -12 mA, -10V; Digital Outputs: +2000, +1000, 0, -1000, -2000
Maximum Resolution	Voltage: 5 millivolts (1/2000); Current: 20 microamps (1/1000)
Maximum Conversion Speed	Max. 2.5 ms/channel
Absolute Maximum Input	Voltage: +/-15V, Current: +/- 30mA
Number of Analog Inputs	8 Channels/Unit
Insulation Method	Photocoupler
Occupied I/O Stations	4 stations (32 points)
Connection Terminal	47-point terminal block
24VDC Internal Current Consumption	0.3A
Outside Dimensions (HxWxD)	170 x 100 x 80 mm

The Mitsubishi A68ADC MELSEC-A module is an analog-to-digital converter module with versatile input options. Its analog input option supports voltage ranges from -10 to 0 to +10 VDC and current ranges from +4 to +20 mADC. Its digital output option provides 16-bit, signed binary data ranging from -2048 to +2047. With a maximum resolution of 5 millivolts for voltage and 20 microamps for current,...

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.