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LM4051BIM3-1.2 Datasheet(PDF) 2 Page - Texas Instruments |
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LM4051BIM3-1.2 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 16 page LM4051 Precision Micropower Shunt Voltage Reference General Description Ideal for space critical applications, the LM4051 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4051’s ad- vanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4051 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjust- able reverse breakdown voltage. The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA. The LM4051 comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/˚C guaranteed from −40˚C to 125˚C. The LM4051 utilizes fuse and zener-zap trim of reference voltage during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25˚C. Features n Small packages: SOT-23 n No output capacitor required n Tolerates capacitive loads n Reverse breakdown voltage options of 1.225V and adjustable Key Specifications (LM4051-1.2) j Output voltage tolerance (A grade, 25˚C) ±0.1%(max) j Low output noise (10 Hz to 10kHz) 20µV rms j Wide operating current range 60µA to 12mA j Industrial temperature range −40˚C to +85˚C j Extended temperature range −40˚C to +125˚C j Low temperature coefficient 50 ppm/˚C (max) Applications n Portable, Battery-Powered Equipment n Data Acquisition Systems n Instrumentation n Process Control n Energy Management n Automotive and Industrial n Precision Audio Components n Base Stations n Battery Chargers n Medical Equipment n Communication Connection Diagrams SOT-23 10122201 *This pin must be left floating or connected to pin 2. 10122240 Top View See NS Package Number MF03A March 2005 © 2005 National Semiconductor Corporation DS101222 www.national.com |
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