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LM4051BIM3X-1.2 fiches techniques PDF

National Semiconductor - Precision Micropower Shunt Voltage Reference

Numéro de référence LM4051BIM3X-1.2
Description Precision Micropower Shunt Voltage Reference
Fabricant National Semiconductor 
Logo National Semiconductor 





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LM4051BIM3X-1.2 fiche technique
February 2000
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) SSOT-23 surface-mount package. The LM4051’s
advanced design eliminates the need for an external stabiliz-
ing 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: SSOT-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)
n Output voltage tolerance
(A grade, 25˚C)
n Low output noise
(10 Hz to 10kHz)
n Wide operating current range
n Industrial temperature range
(tempco guaranteed from
−40˚C to +125˚C)
n Low temperature coefficient
±0.1%(max)
20µVrms
60µA to 12mA
−40˚C to +85˚C
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
SSOT-23
DS101222-1
*This pin must be left floating or connected to pin 2.
Top View
See NS Package Number MF03A
DS101222-40
© 2000 National Semiconductor Corporation DS101222
www.national.com

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