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Texas Instruments-TPS2010DRG4 Power Switches Power Switch Hi Side 1-OUT 0A 140mOhm 8-Pin SOIC T/R
Integrated Circuits (ICs)

LM334SMX/NOPB

Active
Texas Instruments

0°C TO 70°C 3-PIN ADJUSTABLE CURRENT SOURCE

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Search across all available documentation for this part.

DocumentsAN-256 Circuitry for Inexpensive Relative Humidity Measurement (Rev. B)AN-C V/F Converter ICs Handle Frequency-to-Voltage Needs (Rev. B)+6
Texas Instruments-TPS2010DRG4 Power Switches Power Switch Hi Side 1-OUT 0A 140mOhm 8-Pin SOIC T/R
Integrated Circuits (ICs)

LM334SMX/NOPB

Active
Texas Instruments

0°C TO 70°C 3-PIN ADJUSTABLE CURRENT SOURCE

Deep-Dive with AI

DocumentsAN-256 Circuitry for Inexpensive Relative Humidity Measurement (Rev. B)AN-C V/F Converter ICs Handle Frequency-to-Voltage Needs (Rev. B)+6

Technical Specifications

Parameters and characteristics for this part

SpecificationLM334SMX/NOPB
Accuracy6 %
Current - OutputAdjustable
FunctionCurrent Source
Mounting TypeSurface Mount
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °C
Package / Case8-SOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-SOIC
Voltage - Input [Max]40 V
Voltage - Input [Min]1 V

LM334 Series

0°C to 70°C 3-pin adjustable current source

PartOperating Temperature [Max]Operating Temperature [Min]FunctionCurrent - OutputVoltage - Input [Min]Voltage - Input [Max]AccuracyPackage / CaseMounting TypeSupplier Device PackagePackage / Case [y]Package / Case [x]
TO-92-3(StandardBody),TO-226_bentlead
Texas Instruments
LM334Z/LFT1
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
TO-226-3
TO-92-3
Through Hole
TO-92-3
8-SOIC
Texas Instruments
LM334SM/NOPB
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
LM334 MWC
Texas Instruments
LM334 MWC
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
Die
Surface Mount
Wafersale
8-SOIC
Texas Instruments
LM334SMX
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
SOIC (D)
Texas Instruments
LM334MX/NOPB
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
8-SOIC
Texas Instruments
LM334M
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
LM334H/NOPB
Texas Instruments
LM334H/NOPB
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
TO-206AB
TO-46-3 Metal Can
Through Hole
TO-46-3
SOIC (D)
Texas Instruments
LM334M/NOPB
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
Texas Instruments-TPS2010DRG4 Power Switches Power Switch Hi Side 1-OUT 0A 140mOhm 8-Pin SOIC T/R
Texas Instruments
LM334SMX/NOPB
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in
8-SOIC
Texas Instruments
LM334MX
70 °C
0 °C
Current Source
Adjustable
1 V
40 V
6 %
8-SOIC
Surface Mount
8-SOIC
3.9 mm
0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 2.79
10$ 2.51
25$ 2.37
100$ 2.02
250$ 1.89
500$ 1.66
1000$ 1.37
Digi-Reel® 1$ 2.79
10$ 2.51
25$ 2.37
100$ 2.02
250$ 1.89
500$ 1.66
1000$ 1.37
Tape & Reel (TR) 2500$ 1.03
5000$ 1.00
Texas InstrumentsLARGE T&R 1$ 1.87
100$ 1.44
250$ 1.06
1000$ 0.76

Description

General part information

LM334 Series

The LM134/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 LM134/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.

Applications for the current sources include bias networks, surge protection, low power reference, ramp generation, LED driver, and temperature sensing. The LM234-3 and LM234-6 are specified as true temperature sensors with ensured initial accuracy of ±3°C and ±6°C, respectively. These devices are ideal in remote sense applications because series resistance in long wire runs does not affect accuracy. In addition, only 2 wires are required.