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National Semiconductor - Precision Micropower Shunt Voltage Reference

Numéro de référence LM4050CIM3-10
Description Precision Micropower Shunt Voltage Reference
Fabricant National Semiconductor 
Logo National Semiconductor 





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LM4050CIM3-10 fiche technique
May 2000
LM4050
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4050 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SSOT-23 surface-mount package. The LM4050’s
design eliminates the need for an external stabilizing capaci-
tor while ensuring stability with any capacitive load, thus
making the LM4050 easy to use. Further reducing design ef-
fort is the availability of several fixed reverse breakdown volt-
ages: 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V. The
minimum operating current increases from 60 µA for the
LM4050-2.5 to 100 µA for the LM4050-10.0. All versions
have a maximum operating current of 15 mA.
The LM4050 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 break-
down voltage accuracy over a wide range of operating tem-
peratures and currents.
All grades and voltage options of the LM4050 operate be-
tween −40˚C and +85˚C. Selected parts can operate in the
extended temperature range, from −40˚C and +125˚C.
Features
n Small packages: SSOT-23
n No output capacitor required
n Tolerates capacitive loads
n Fixed reverse breakdown voltages of 2.500V, 4.096V,
5.000V, 8.192V, and 10.000V
Key Specifications (LM4050-2.5)
n Output voltage tolerance
(A grade, 25˚C)
n Low output noise
(10 Hz to 10 kHz)
n Wide operating current range
n Industrial temperature range
n Extended temperature range
n Low temperature coefficient
±0.1% (max)
41 µVrms(typ)
60 µA to 15 mA
−40˚C to +85˚C
−40˚C to +125˚C
50 ppm/˚C (max)
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Product Testing
n Automotive
n Precision Audio Components
Connection Diagrams
SSOT-23
*This pin must be left floating or connected to pin 2.
DS101045-1
Top View
See NS Package Number MF03A
© 2000 National Semiconductor Corporation DS101045
www.national.com

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