LM4040 Datasheet | National Semiconductor

Description Ideal for space critical applications, the LM4040 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4040’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040 easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V. The minimum operating current increases from 60 µA for the LM4040-2.5 to 100 µA for the LM4040-10.0. All versions have a maximum operating current of 15 m A. The LM4040 utilizes fuse and zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ± 0.1% (A grade) at 25˚C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. Also available is the LM4041 with two reverse breakdown voltage versions: adjustable and 1.2V. Please see the LM4041 data sheet. n Tolerates capacitive loads n Fixed reverse breakdown voltages of 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V Key Specifications (LM4040-2.5) n Output voltage tolerance (A grade, 25˚C) n Low output noise (10 Hz to 10 k Hz) n Wide operating current range n Industrial temperature range n Extended temperature range n Low temperature coefficient ± 0.1% (max) 35 µVrms(typ) 60 µA to 15 m A - 40˚C to +85˚C - 40˚C to +125˚C 100 ppm/˚C (max) Applications n n n n n n n n Portable, Battery-Powered Equipment Data Acquisition Systems Instrumentation Process Control Energy Management Product Testing Automotive Precision Audio ponents Features n Small packages: SOT-23, TO-92 n No output capacitor required Connection Diagrams SOT-23 TO-92 DS011323-1 - This pin must be left floating or connected to pin 2. Top View See NS Package Number M03B (JEDEC Registration...