LT1790ACS6-3

The LM134 is a three-terminal current source designed to operate at current levels from 1uA to 10mA,as set by an external resistor. The device operates as a true two terminal current source, requiring no extra power connections or input signals. Regulation is typically 0.02%/V and terminal-to-terminal voltage can range from 800mV to 40V.

LM134 has six unique features:The first one is 1uA to 10mA operation.The second one is 0.02%/V regulation.The third one is 0.8V to 40V operating voltage.The forth one is it can be used as linear temperature sensor.The fifth one is it draws no reverse current.The sixth one is it supplied in standard transistor packages.Besides,it also has some applications: The first one is current mode temperature sensing.The second one is constant current source for shunt references.The third one is cold junction compensation.The forth one is constant-gain bias for bipolar differential stage.The fifth one is micropower bias networks,etc. 

There are some absolute maximum ratings about LM134.V+ to V- reverse voltage is 20 V. R pin to V- voltage is 5 V.Set current is 10 mA.Power dissipation is 200 mW.Storage temperature range is -65 to 150.Lead temperature(sodlering,10 sec) is 300.