LM4040DIM3-5.0 PrecisioMicropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4040 precision
voltage reference is available ithe sub-miniature SC70 and
SOT-23 surface-mount package. The LM4040’s advanced
desigeliminates the need for aexternal 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: 2.048V, 2.500V, 3.000V, 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 mA.
The LM4040 utilizes fuse and zener-zap reverse breakdown
voltage trim during wafer sort to ensure that the prime parts
have aaccuracy of better tha±0.1% (A grade) at 25˚C.
Bandgap reference temperature drift curvature correction
and low dynamic impedance ensure stable reverse breakdowvoltage 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.
Features
Small packages: SOT-23, TO-92 and SC70
No output capacitor required
Tolerates capacitive loads
Fixed reverse breakdowvoltages of 2.048V,
2.500V,3.000V, 4.096V, 5.000V, 8.192V, and 10.000V
Key Specifications (LM4040-2.5)
Output voltage tolerance
(A grade, 25˚C) ±0.1% (max)
Low output noise
(10 Hz to 10 kHz) 35 µVrms
(typ)
Wide operating current range 60 µA to 15 mA
Industrial temperature range −40˚C to +85˚C
Extended temperature range −40˚C to +125˚C
Low temperature coefficient 100 ppm/˚C (max)
Applications
Portable, Battery-Powered Equipment
Data AcquisitioSystems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive
PrecisioAudio Components
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