(Hong Kong)
Product Summary
The 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 resistorand no other parts are required. Initial current accuracy is±3%. The 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 LM134 is guaranteed over a temperature range of -55°C to +125°C, the LM234 from -25°C to +100°C and the LM334 from 0°C to +70°C. These devices are available inTO-46 hermetic, TO-92 and SO-8 plastic packages.
Parametrics
The absolute maximum ratings of LM334M are (1)V+ to V- Forward Voltage:40V; (2)V+ to V- Reverse Voltage:20V; (3)R Pin to V- Voltage:5V; (4)Set Current:10 mA; (5)Power Dissipation:400 mW; (6)ESD Susceptibility (Note 6):2000V; (7)Operating Temperature Range (Note 5):0°C to +70°C
Features
The features of LM334M can be summarized as (1)Operates from 1V to 40V; (2)0.02%/V current regulation; (3)Programmable from 1μA to 10mA; (4)True 2-terminal operation; (5)Available as fully specified temperature sensor; (6)±3% initial accuracy
Diagrams
<P><IMG alt="LM334M Block Diagram" src="http://www.seekic.com/uploadfile/ic-mfg/2012727203818167.jpg" border=0></P>
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 LM334M |
National Semiconductor (TI) |
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LM334M/NOPB |
National Semiconductor (TI) |
Voltage & Current References 3-TERM ADJ CURRENT SOURCE |
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LM334MX |
National Semiconductor (TI) |
Voltage & Current References |
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LM334MX/NOPB |
National Semiconductor (TI) |
Voltage & Current References |
Data Sheet |
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