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MAXREFDES77#: Dual-channel current sensing peripheral module

Overview

The MAXREFDES77# peripheral module provides the necessary hardware circuitry to allow the MAX44285 dual-channel high- side current- amplifier to be connected to any system configured for SPI communications using a Pmod™-compatible expansion port. The IC has a common-mode input with a voltage range of 2.7V to 76V and a small signal bandwidth of 80kHz. It is ideal for connecting to SAR ADCs and used in multi-channel, multiplexed data acquisition systems.

For detailed operating information on the IC, please refer to the MAX44285 IC data sheet; for detailed information on the Munich circuit board and GUI, please refer to the USB2PMB1# (Munich) adapter circuit board data sheet.

characteristic

2.7V to 76V input common-mode voltage
Low input offset voltage of 12µV (max)
0.1% (max) low gain error
Gain = 20V/V and 100V/V
RoHS compliant
Proven PCB layout
Fully installed and tested

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-23 19:25:39

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