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MAX4080 is a high-side current-Sensor amplifiers with an input voltage range of 4.5V to 76V, making them ideal for telecom, automotive, backplane, and other systems that require tight monitoring of high-voltage currents. Parameters:
Common mode input voltage range: 4.5V to 76V
Maximum working current: 190uA
Full scale accuracy: ±0.1%
Low input offset voltage: 100μV
Independent working power supply voltage: 4.5V to 76V
Pin Definition:
RS+: positive terminal of external Sensor resistor
RS-: negative terminal of external Sensor resistor
VCC: Positive power supply
OUT: Conversion voltage output
FIA, FIB: MAX4080 chip used by the module, no connection
Applications:
48V Telecom and Backplane Current Detection
Car (12V, 24V or 42V battery)
Avalanche photodiode and PIN diode current monitoringb
Two-way motor control
General purpose system / board level current sensing
Power management system
Precision high voltage current source
Package included:
2* MAX4080SASA Current Sensor Module
Steve Rodriguez
Reviewed in the United States on February 15, 2025
Both units failed to work.When the first unit failed, I thought that I had wired the circuit board incorrectly. After spending some time going over the data sheet of the Max4080 chip and re-checking my test setup, I determined that my connections to this Max 4080 breakout board were correct. My assumption was that the 4080 chip on this breakout circuit board is faulty.Being careful and wearing a grounding strap,I tried the other board (2 boards in the package) and that board also failed.I ordered a different breakout circuit board containing the INA169 AnalogDC Current Sensor. This unit worked perfectly.
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