LM334Z/NOPB Datasheet

Voltage & Current References


The LM334Z/NOPB /LM234/LM334 are 3-terminal adjustable current sources featuring 10,000:1 range in operating current, excellent current regulation and a wide dynamic voltage range of 1V to 40V. Current is established with one external resistor and no other parts are required. Initial current accuracy is ±3%. The LM334Z/NOPB/LM234/LM334 are true floating current sources with no separate power supply connections. In addition, reverse applied voltages of up to 20V will draw only a few dozen microamperes of current, allowing the devices to act as both a rectifier and current source in AC applications. The sense voltage used to establish operating current in the LM134 is 64mV at 25°C and is directly proportional to absolute temperature (°K). The simplest one external resistor connection, then, generates a current with ≈+0.33%/°C temperature dependence. Zero drift operation can be obtained by adding one extra resistor and a diode. LM334Z/NOPB Features • Operates From 1V to 40V• 0.02%/V Current Regulation• Programmable From 1μA to 10mA• True 2-Terminal Operation• Available as Fully Specified Temperature Sensor• ±3% Initial Accuracy


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Manufacturer information

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