This voltage-to-current converter design can both source and sink current. The circuit is more flexible than some traditional current references that require different topologies for current sourcing and sinking. Also, you can easily adjust the value of t
http://www.edn.com/article/CA321804.html
Digitally programmable current sources that feature automatic trimming and retain the setting despite power-down cycles are useful in applications such as RF- and laser-communications drivers. This circuit is particularly suited for setting the drive curr
http://www.edn.com/article/CA193194.html
This novel floating current source represents an improved way to bias ISFET sensors.
http://www.edn.com/article/CA293241.html
digitally programmable current source capable of sourcing currents as high as 2.55A
http://www.edn.com/archives/1995/062295/13di1.htm
When you need a high-current source, using a linear regulator is inadvisable, because of the high power dissipation in the series resistor. To solve the wasted-power problem, you can use a switch-mode regulator. This circuit uses an LM2576 adjustable regu
http://www.edn.com/article/CA217668.html
wide-output-current range sources that accommodate a wide supply and temperature range, based on LM317
http://www.edn.com/archives/1995/062295/13di3.htm
bandwidth of this circuit measures more than 1 MHz, only the selected MOSFET and the ratings of the input supply's bypass capacitors limit the voltage compliance
http://www.edn.com/archives/1998/071698/15di.htm
Sources and mirrors are so closely related that it is sometimes difficult to differentiate between them.
http://www.4qdtec.com/csm.html