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LM4040-N
,
LM4040-N-Q1
SNOS633J –OCTOBER 2000–REVISED AUGUST 2015
LM4040-N/-Q1 Precision Micropower Shunt Voltage Reference
1 Features 3 Description
Ideal for space-critical applications, the LM4040-N
1
• SOT-23 AEC Q-100 Grades 1 and 3 available
precision voltage reference is available in the sub-
• Small Packages: SOT-23, TO-92, and SC70
miniature SC70 and SOT-23 surface-mount package.
• No Output Capacitor Required
The advanced design of the LM4040-N eliminates the
need for an external stabilizing capacitor while
• Tolerates Capacitive Loads
ensuring stability with any capacitive load, thus
• Fixed Reverse Breakdown Voltages of 2.048 V,
making the LM4040-N easy to use. Further reducing
2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
design effort is the availability of several fixed reverse
• Key Specifications (2.5-V LM4040-N)
breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5
V, 8.192 V, and 10 V. The minimum operating current
– Output Voltage Tolerance (A Grade, 25°C):
increases from 60 μA for the 2.5-V LM4040-N to 100
±0.1% (Maximum)
μA for the 10-V LM4040-N. All versions have a
– Low Output Noise (10 Hz to 10 kHz): 35 μV
rms
maximum operating current of 15 mA.
(Typical)
The LM4040-N uses a fuse and Zener-zap reverse
– Wide Operating Current Range: 60 μA to 15
breakdown voltage trim during wafer sort to ensure
mA
that the prime parts have an accuracy of better than
– Industrial Temperature Range: −40°C to 85°C
±0.1% (A grade) at 25°C. Bandgap reference
temperature drift curvature correction and low
– Extended Temperature Range: −40°C to
dynamic impedance ensure stable reverse
125°C
breakdown voltage accuracy over a wide range of
– Low Temperature Coefficient: 100 ppm/°C
operating temperatures and currents.
(Maximum)
Also available is the LM4041-N with two reverse
breakdown voltage versions: adjustable and 1.2 V.
2 Applications
See the LM4041-N data sheet (SNOS641).
• Portable, Battery-Powered Equipment
• Data Acquisition Systems Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
• Instrumentation
TO-92 (3) 4.30 mm × 4.30 mm
• Process Controls
LM4040-N SC70 (5) 2.00 mm × 1.25 mm
• Energy Management
SOT-23 (3) 2.92 mm × 1.30 mm
• Product Testing
LM4040-N-Q1 SOT-23 (3) 2.92 mm × 1.30 mm
• Automotives
(1) For all available packages, see the orderable addendum at
• Precision Audio Components
the end of the data sheet.
Shunt Reference Application Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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