Programmable 200-mA two-terminal current source has 10-ppm regulation

Programmable 200-mA two-terminal current source has 10-ppm regulation

The LT3092 is a 200-mA two-terminal current source that is one of the first to offer a wide voltage range, high ac and dc impedance, good regulation, low temperature coefficient, and requires no capacitors. The output current is programmable from 0.5 to 200 mA, and the current regulation from 1.5 to 40 V is 10-ppm/V. It has two floating terminals, features 1% initial accuracy, and has an impedance of 100-MΩ at 1 mA or 1-MΩ at 100 mA.

The current source ensures stable operation without supply bypass capacitors and is suited for applications in which the output may be shorted and no sparking can be tolerated. The device is offered in three packages: the 0.75-mm-high 8-lead DFN, a 3 x 3-mm 8-pin SOT-23, and 3-pin power SOT-223 package. Both the LT3092E and LT3092I feature an operating junction temperature of –40° to 125°C, while the LT3092MP operates from –55° to 125°C junction temperature. (Ea/1,000: DFN and SOT-23 packages in E and I grades, $1.65 and $1.83; SOT-223 package in E and I grades, $1.75 and $1.94; SOT-223 in the MP grade, $4.73 — available now.)

Linear Technology , Milpitas , CA
Information 408-432-1900
http://www.linear.com