Posted on Sep 9, 2012

This simple circuit is a gain-of-1000 inverting amplifier. It will amplify submillivolt signals up to signal levels suitable for further processing. In almost all system applications, it is best to use as OUTPUT much gain as possible in the MAX420, thus minimizing the effects of later-stage offsets.

Click here to download the full size of the above Circuit.

For example, if circuitry following the MAX420 has an offset of 5 m V, the additional offset referred back to the MAX420 input (gain = 1000) will be 5 p.V, doubling Fig. 3-4 the system"s offset error.

Leave Comment

characters left:

New Circuits



Popular Circuits

Temperature Sensor with Digital Output
2 LED flasher with two 2N3904 transistors
Electrical isolation for the I2C bus with optocouplers
Smart Turn Signal Circuit
Crystal oscillator simulation
cut the feed forward in the miller compensation with voltage buffer
tube head amplifier
simple but reliable car battery tester
Whistle Responder Schematic