LM334M National Semiconductor, LM334M Datasheet
LM334M
Specifications of LM334M
Available stocks
Related parts for LM334M
LM334M Summary of contents
Page 1
... Applications for the current sources include bias networks, surge protection, low power reference, ramp generation, Connection Diagrams SO-8 Surface Mount Package 00569724 Order Number LM334M or LM334MX See NS Package Number M08A TO-46 Metal Can Package 00569712 − V Pin is electrically connected to case ...
Page 2
... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. + − Forward Voltage LM134/LM234/LM334 LM234-3/LM234-6 + − Reverse Voltage − R Pin to V Voltage Set Current Power Dissipation ESD Susceptibility (Note 6) Operating Temperature Range (Note ...
Page 3
Electrical Characteristics Note directly proportional to absolute temperature (˚K). I SET (˚K). Note 5: For elevated temperature operation, T Thermal Resistance θ (Junction to ja Ambient) θ (Junction to Case) jc Note 6: Human body model, 100pF ...
Page 4
Typical Performance Characteristics Output Impedance Start-Up Voltage Across R www.national.com 00569730 00569732 (V ) SET R 00569734 4 Maximum Slew Rate Linear Operation 00569731 Transient Response 00569733 Current Noise 00569735 ...
Page 5
Typical Performance Characteristics Turn-On Voltage Application Hints The LM134 has been designed for ease of application, but a general discussion of design features is presented here to familiarize the designer with device characteristics which may not be immediately obvious. These ...
Page 6
Application Hints (Continued) regulation by at least an order of magnitude. DC character- istics (with the exception of minimum input voltage), are not affected. NOISE Current noise generated by the LM134 is approximately 4 times the shot noise of a ...
Page 7
Application Hints (Continued) The set current ( the sum of I SET 1 uting approximately 50% of the set current, and I usually included in the I term by increasing the V 1 used for calculations by 5.9%. ...
Page 8
Application Hints (Continued) If the forward voltage drop of the diode was 0.65V instead of the estimate of 0.6V (an error of 8%), the actual set current will be an error of less than 5%. If the estimate for the ...
Page 9
Typical Applications (Continued) *Select R1 and C1 for optimum stability Micropower Bias Higher Output Current 00569705 Basic 2-Terminal Current Source 00569701 Low Input Voltage Reference Driver 00569717 9 00569718 www.national.com ...
Page 10
Typical Applications 1.2V Reference Operates on 10 µA and 2V *Select ratio obtain zero temperature drift 1.2V Regulator with 1.8V Minimum Input *Select ratio for zero temperature drift www.national.com (Continued) Ramp ...
Page 11
Typical Applications (Continued) FET Cascoding for Low Capacitance and/or Ultra High Output Impedance *Select ensure at least 1V across the LM134 ≥ 1.2V SET DSS Generating Negative Output Impedance 00569723 ≈ −16 ...
Page 12
Schematic Diagram (Continued) www.national.com 00569711 12 ...
Page 13
... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM134H, LM234H or LM334H NS Package Number H03H SO Package (M) Order Number LM334M, LM334MX, LM334SM or LM334SMX NS Package Number M08A 13 www.national.com ...
Page 14
... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...