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2022-09-24 23:21:22
LM334Z-Three-terminal adjustable current source
Describe the features of the LM134/LM234/LM334 that are 3-terminal adjustable current sources:
-10000 operatingcurrent range: 1
- an excellent current regulation
- Wide dynamic voltage range from 1V to 40V
is present by an external resistor without the need for other external components. Currents with reverse voltages up to 20V will only draw a few microamps. This makes the circuit tooperate asa rectifierandas a source of current applied in ac. For the LM134/LM234/LM334, the voltage on the control pin is +25 oC of 64mV, which is proportional to the absolute temperature (determined). The simplest connection to an external resistor yields a temperature dependence of 90.33%/oC of current. Zero drift can be obtained by adding anadditionalresistor and diodes to external circuits.
Features operate from 1V to 40V.
0.02% V current regulation programmable from 1mA to 10mA
±3% initial accuracy