LM136-2.5,LM236-2.5,LM336-2.5 LM136-2.5/LM236-2.5/LM336-2.
LM136-2.5/LM236-2.5/LM336-2.5V Reference Diode General Description The LM136-2.5/LM236-2.5 and LM336-2.5 integrated circuits are precision 2.5V shunt regulator diodes. These monolithic IC voltage references operate as a lowtemperature-coefficient 2.5V zener with 0.2Ω dynamic impedance. A third terminal on the LM136-2.5 allows the reference voltage and temperature coefficient to be trimmed easily. The LM136-2.5 series is useful as a precision 2.
LM136-2.5/LM236-2.5/LM336-2.5V Typical Applications Wide Input Range Reference 2.5V Reference 00571509 2.5V Reference with Minimum Temperature Coefficient 00571511 00571510 † Adjust to 2.490V * Any silicon signal diode www.national.
LM336 Soldering Information If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Reverse Current 15 mA Forward Current TO-92 Package (10 sec.) 260˚C TO-46 Package (10 sec.) 300˚C SO Package 10 mA Storage Temperature −60˚C to +150˚C Operating Temperature Range (Note 2) LM136 −55˚C to +150˚C LM236 −25˚C to +85˚C 0˚C to +70˚C Vapor Phase (60 sec.) 215˚C Infrared (15 sec.
LM136-2.5/LM236-2.5/LM336-2.5V Electrical Characteristics (Note 3) (Continued) Note 3: Unless otherwise specified, the LM136-2.5 is specified from −55˚C ≤ TA ≤ +125˚C, the LM236-2.5 from −25˚C ≤ TA ≤ +85˚C and the LM336-2.5 from 0˚C ≤ TA ≤ +70˚C. Note 4: Temperature stability for the LM336 and LM236 family is guaranteed by design. Design limits are guaranteed (but not 100% production tested) over the indicated temperature and supply voltage ranges.
LM136-2.5/LM236-2.5/LM336-2.5V Typical Performance Characteristics Reverse Voltage Change Zener Noise Voltage 00571522 00571521 Dynamic Impedance Response Time 00571524 00571523 Reverse Characteristics Forward Characteristics 00571525 00571526 5 www.national.
LM136-2.5/LM236-2.5/LM336-2.5V Typical Performance Characteristics (Continued) Temperature Drift 00571528 FIGURE 1. LM136 With Pot for Adjustment of Breakdown Voltage (Trim Range = ± 120 mV typical) 00571527 Application Hints The LM136 series voltage references are much easier to use than ordinary zener diodes. Their low impedance and wide operating current range simplify biasing in almost any circuit.
LM136-2.5/LM236-2.5/LM336-2.5V Application Hints (Continued) Low Cost 2 Amp Switching Regulator† 00571505 *L1 † 60 turns #16 wire on Arnold Core A-254168-2 Efficiency ≈ 80% Precision Power Regulator with Low Temperature Coefficient 00571513 5V Crowbar Trimmed 2.5V Reference with Temperature Coefficient Independent of Breakdown Voltage 00571515 *Does not affect temperature coefficient 00571514 7 www.national.
LM136-2.5/LM236-2.5/LM336-2.5V Application Hints (Continued) Adjustable Shunt Regulator 00571506 Linear Ohmmeter 00571516 www.national.
(Continued) LM136-2.5/LM236-2.5/LM336-2.5V Application Hints 2.5V Square Wave Calibrator Op Amp with Output Clamped 00571519 5V Buffered Reference 00571517 Bipolar Output Reference 00571530 Low Noise Buffered Reference 00571531 00571518 9 www.national.
LM136-2.5/LM236-2.5/LM336-2.5V Schematic Diagram 00571501 www.national.
LM136-2.5/LM236-2.5/LM336-2.5V Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM136H-2.5, LM136H-2.5/883, LM236H-2.5, LM136AH-2.5, LM136AH-2.5/883 or LM236AH-2.5 NS Package Number H03H Small Outline (SO) Package (M) Order Number LM236M-2.5, LM236AM-2.5, LM336M-2.5 or LM336BM-2.5 NS Package Number M08A 11 www.national.
LM136-2.5/LM236-2.5/LM336-2.5V Reference Diode Physical Dimensions inches (millimeters) unless otherwise noted (Continued) TO-92 Plastic Package (Z) Order Number LM336Z-2.5 or LM336BZ-2.5 NS Package Number Z03A National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information visit us at www.national.com.
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