Zero Ohm Output Impedance

A circuit, comprising:

• a first input;
• a first resistor connected in series with the first input;
• a driver comprising a positive input, a negative input, and an output, wherein the positive input is connected in series with the first resistor;
• a second resistor connected in series to the output of the driver;
• and
• a first high speed amplifier placed in series between the output of the driver and the second resistor, wherein a feedback loop of the high speed amplifier is closed around the second resistor.

A remote test head, comprising:

• a first port configured to accept a first analog signal from an arbitrary waveform generator;
• a second port configured to interface with an oscilloscope;
• a third port configured to interface with a device under test;
• a fourth port configured to interface with a power supply and a controller;
• and
• circuitry comprising at least a driver and a first high speed amplifier, wherein the driver is configured to drive a second analog signal, based on the first analog signal, for voltage measurement and current measurement of the device under test, wherein the high speed amplifier is connected in series between the driver and a sensing resistor, and wherein a feedback loop of the high speed amplifier is closed around the sensing resistor.