SNOS633H – OCTOBER 2000 – REVISED APRIL 2013
LM4040-N/LM4040Q-N Precision Micropower Shunt Voltage Reference
Check for Samples:
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FEATURES
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2.5V/SOT-23 AEC Q-100 Grades 1 and 3
available
Small Packages: SOT-23, TO-92 and SC70
No Output Capacitor Required
Tolerates Capacitive Loads
Fixed Reverse Breakdown Voltages of 2.048V,
2.500V,3.000V, 4.096V, 5.000V, 8.192V, and
10.000V
DESCRIPTION
Ideal for space critical applications, the LM4040-N
precision voltage reference is available in the sub-
miniature SC70 and SOT-23 surface-mount package.
The LM4040-N's advanced design eliminates the
need for an external stabilizing capacitor while
ensuring stability with any capacitive load, thus
making the LM4040-N 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 2.5-V
LM4040-N to 100
μA
for the 10.0-V LM4040-N. All
versions have a maximum operating current of
15 mA.
The LM4040-N 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-N with two reverse
breakdown voltage versions: adjustable and 1.2V.
Please see the LM4041-N data sheet.
Key Specifications (2.5-V LM4040-N)
VALUE
UNIT
% (max)
μV
rms
(typ)
μA
to mA
°C
°C
ppm/°C (max)
2
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APPLICATIONS
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Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive
Precision Audio Components
Output voltage tolerance (A grade, 25°C)
Low output noise (10 Hz to 10 kHz)
Wide operating current range
Industrial temperature range
Extended temperature range
Low temperature coefficient
±0.1
35
60 to 15
−40
to +85
−40
to +125
100
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright © 2000–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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