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| LM385-2.5 Micropower Voltage Reference Diode General Description The LM385-2.5 are micropower 2-terminal band-gap voltage regulator diodes. Operating over a 20 A to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Features n n n n n 20 mV (0.8%) max. initial tolerance (A grade) Operating current of 20 A to 20 mA 0.6 dynamic impedance (A grade) Low temperature coefficient Low voltage reference -- 2.5V Connection Diagrams TO-92 Plastic Package Ordering No: LM385Z-2.5 Bottom View LM385Z-2.5 1 2 3 1: "_" 2: "+" 3: NC 1 LM385-2.5 Absolute Maximum Ratings Soldering Information TO-92 Package (10 sec.) Reverse Current Forward Current Operating Temperature Range (Note 3) 30 mA 10 mA 260C LM385-2.5 Storage Temperature 0C to 70C -55C to + 150C Electrical Characteristics (Note 4) LM385-2.5 Parameter Conditions Typ Tested Limit Reverse Breakdown Voltage Design Limit Units (Limits) TA =25 C o 20uA < IR < 20mA 2.500 2.425 2.575 Minimum Operating Current Reverse Breakdown Voltage Change with Current Reverse Dynamic Impedance Wideband Noise (rms) Long Term Stability 1 mA IR 20 mA IR = 100uA f = 20 Hz IR = 100 A 10 Hz f 10 kHz IR = 100 A, T = 1000 Hr, TA = 25C 0.1C Average Temperature IMIN IR 20 mA 20 20uA IR 1mA V(Min) V(Max) 30 13 20 2.0 20 uA (Max) 2.5 25 mV (Max) mV (Max) 1 120 V ppm ppm/C (Max) 150 2 LM385-2.5 Typical Performance Characteristics Reverse Characteristics Reverse Characteristics Forward Characteristics DS005519-15 DS005519-16 DS005519-17 Temperature Drift Reverse Dynamic Impedance Reverse Dynamic Impedance DS005519-18 DS005519-19 DS005519-20 Noise Voltage Filtered Output Noise Response Time DS005519-21 DS005519-22 DS005519-23 Applications Wide Input Range Reference Micropower Reference from 9V Battery DS005519-12 LM385-2.5 Applications 3 |
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