Easy-to-use programmable 200mA two-terminal current source

30-07-2015 | RS Components | Power

The LT3092, an innovative power IC from Linear Technology is now available
from RS Components. The device provides system designers with a
two-terminal current source. Traditionally, current sources were imprecise
or had to be designed from other components. The LT3092 200mA two-terminal
current source overcomes the problems associated with previous current
sources, with its wide voltage range, high AC and DC impedance, good
regulation, low temperature coefficient, and the fact that it requires no
capacitors. The device's two floating terminals make it easy to use.

The device features 1% initial accuracy and a very low temperature
coefficient. Output current is programmable from 0.5mA to 200mA and current
regulation over 1.5V to 40V is better than 10ppm/V. Unlike other analog
integrated circuits, the LT3092 leverages special design techniques for high
DC and AC impedance, ensuring stable operation without supply bypass
capacitors. Since the LT3092 requires no capacitors, it is ideal for
'intrinsically safe' applications in which the output may be shorted and no
sparking can be tolerated. Reverse supply tolerance and thermal shutdown
protect both the IC and the load, says the company.

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