Found in old documentation, this circuit makes use of amplifiers of the time, uncommon today. Next to the diagram, the formula for calculating the components.
This circuit can operate with 5 uV to 1 mV input signals from low impedance sources such as...
This circuit makes use of a Linear Technology LT6100 having been taken from the component...
This circuit is from a Texas Instruments manual from 1968 but can be applied to current controls...