LT3092

1

3092fb

TYPICAL APPLICATION

DESCRIPTION

200mA 2-Terminal

Programmable Current Source

source. It requires only two resistors to set an output

current between 0.5mA and 200mA. A multitude of analog

techniques lend themselves to actively programming the

output current. The LT3092 is stable without input and

output capacitors, offering high DC and AC impedance. This

feature allows operation in intrinsically safe applications.

The SET pin features 1% initial accuracy and low tem-

perature coefficient. Current regulation is better than

10ppm/V from 1.5V to 40V.

The LT3092 can operate in a 2-terminal current source

configuration in series with signal lines. It is ideal for driv-

ing sensors, remote supplies, and as a precision current

limiter for local supplies.

Internal protection circuitry includes reverse-battery and

reverse-current protection, current limiting and thermal

limiting. The LT3092 is offered in the 8-lead TSOT-23,

3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages.

Adjustable 2-Terminal Current Source

FEATURES

APPLICATIONS

8-Lead 3mm × 3mm DFN Packages

SET Pin Current vs Temperature

3092 TA01a

IN

SET

OUT

+

–

LT3092

10μA

IµA

R

R

SOURCE

SET

OUT

= 10

•

TEMPERATURE (°C)

–50

9.900

9.950

10.000

10.050

–25

0

25

50

100

75

125

10.100

9.925

9.975

10.025

10.075

150

3092 TA01b

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