LM234 ,3-Terminal Adjustable Current Sourceapplications.For the LM134/LM234/LM334, the voltage on thePackagePart Num- Temperatureocontrol pin ..
LM234 ,3-Terminal Adjustable Current SourceFEATURESThe sense voltage used to establish operating current2• Operates From 1V to 40Vin the LM134 ..
LM234D ,ADJUSTABLE CURRENT SOURCESELECTRICAL CHARACTERISTICSoT = +25 C with pulse testing so that junction temperature does not chang ..
LM234H ,3-Terminal Adjustable Current SourceGeneral DescriptionLM234-6 are specified as true temperature sensors withThe LM134/LM234/LM334 are ..
LM234Z ,ADJUSTABLE CURRENT SOURCESLM134-LM234LM334THREE TERMINAL ADJUSTABLE CURRENT SOURCES. OPERATES from 1V to 40V. 0.02% V CURRENT ..
LM234Z-3 ,3-Terminal Adjustable Current SourceGeneral DescriptionLM234-6 are specified as true temperature sensors withThe LM134/LM234/LM334 are ..
LM4040DIM3-4.1+T ,Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages LM4040Improved Precision Micropower Shunt VoltageReference with Multiple Reverse Breakdown Voltag ..
LM4040DIM3-5.0 ,Precision Micropower Shunt Voltage ReferenceLM4040 Precision Micropower Shunt Voltage ReferenceAugust 2002LM4040Precision Micropower Shunt Volt ..
LM4040DIM3-5.0/NOPB ,Precision Micropower Shunt Voltage Reference 3-SOT-23 Electrical Characteristics: 3-V LM4040-N VR 11.1 Layout Guidelines.... 41Tolerance Grades 'C', 'D', ..
LM4040DIM3-5.0+T ,Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown VoltagesFeaturesThe LM4040 is a precision two-terminal shunt mode,♦ Ultra-Small 3-Pin SC70 Packagebandgap v ..
LM4040DIM3-5.0-T ,5.0 V, improved precision micropower shunt voltage reference with multiple reverse breakdown voltageELECTRICAL CHARACTERISTICS—2.048V(I = 100µA, T = T to T , unless otherwise noted. Typical values ar ..
LM4040DIM3-8.2 ,Precision Micropower Shunt Voltage ReferenceApplicationsdown voltage accuracy over a wide range of operating tem-n Portable, Battery-Powered Eq ..
LM234
3-Terminal Adjustable Current Source
LM134, LM234, LM334
www.ti.com SNVS746E –MARCH 2000–REVISED MAY 2013
LM134/LM234/LM334 3-Terminal Adjustable Current Sources
Checkfor Samples: LM134, LM234, LM334
1FEATURESThe sense voltage usedto establish operating current
Operates From 1Vto 40V the LM134is 64mV at 25°C and is directly
• 0.02%/V Current Regulation proportional to absolute temperature (°K). The
• Programmable From 1μAto 10mA simplest one external resistor connection, then,
generatesa current with ≈+0.33%/°C temperature
• True 2-Terminal Operationdependence. Zero drift operation canbe obtainedby
• Available as Fully Specified Temperature adding one extra resistor anda diode.
SensorApplications for the current sources include bias
• ±3% Initial Accuracy networks, surge protection, low power reference,
ramp generation, LED driver, and temperature
DESCRIPTION sensing. The LM234-3 and LM234-6 are specifiedasThe LM134/LM234/LM334 are 3-terminal adjustable true temperature sensors with ensured initialcurrent sources featuring 10,000:1 rangein operating accuracy of ±3°C and ±6°C, respectively. Thesecurrent, excellent current regulation anda wide devices are ideal in remote sense applicationsdynamic voltage range of 1V to 40V. Currentis because series resistancein long wire runs does notestablished with one external resistor and no other affect accuracy.In addition, only2 wires are required.parts are required. Initial current accuracyis ±3%.
The LM134is specified overa temperature rangeofThe LM134/LM234/LM334 are true floating current
−55°Cto +125°C, the LM234 from −25°Cto +100°Csources with no separate power supply connections.
and the LM334 from 0°Cto +70°C. These devicesIn addition, reverse applied voltagesof upto 20V will
are availablein TO hermetic, TO-92 and SOIC-8draw onlya few dozen microamperes of current,
plastic packages.allowing the devicesto act as botha rectifier and
current sourcein AC applications.
Connection Diagrams Surface Mount Package Figure2. SOIC-8 Alternative Pinout Surface Mount
Package LM334MX; LM334SMX;
See (Bottom View) Figure4. TO-92 (Bottom View) NDV See Package Number LP
