Tag Archives: Current Sensor

OP90 Single-Supply Current Monitor

Posted on September 23, 2010 by Rend

This is Single-Supply Current Monitor circuit. Amplifying the voltage drop across a resistor placed in a series with the current to be measured is the essential of current monitoring. However it is difficult because with low precision op amps this … Continue reading →

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INA159 Dual-Polarity, Bidirectional Current-Shunt-Monitor Circuit

Posted on April 11, 2010 by Rend
INA159 Dual-Polarity, Bidirectional Current-Shunt-Monitor Circuit

This is a INA159 Dual-Polarity, Bidirectional Current-Shunt-Monitor Circuit. This circuit uses OPA340 because it has near rail-to-rail input and output swing ranges that allow the output voltage of the circut to approach 0 and 5V. The gain of OPA340 is … Continue reading →

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Self Powered Current Sensing

Posted on January 14, 2010 by Adam
self-powered-current-sensing

This is a current sensing circuit that senses the current at the high side (between load and positive supply). This circuit     take advantage from Rail-to-Rail input of the LT1494 and the microampere supply current. Here is the circuit : At … Continue reading →

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