Voltage-to-current converter II


Posted on Sep 28, 2012

The circuit in Figure 1 performs active voltage-to-current conversion or acts as a variable-gain current mirror with high precision and bandwidth. A typical application is testing high-speed ICs or other devices that have inputs designed to be driven from current-steering DACs to enable a modulated voltage source to control the devices. The circuit thus simplifies the testing of such devices in isolation, because modulated voltage sources are readily available, but modulated current sources generally are not.



A further use of the circuit could be for easy and precise control of a current-controlled, variable-gain amplifier by using an adjustable dc voltage source at the input. Figure 1 shows the circuit configured as a voltage-to-current converter. The overall




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Door lock Circuit
Serial port Infrared Receiver
Rf probe for vtvm
Battery Charger
5v to isolated 5v converter circuit
PC-Midi Interface
Coolingmist Installation
Inductive switching power supply circuit diagram
FM Linear Amplifier 400mW



Top