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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.
LM4040-N
,
LM4040-N-Q1
SNOS633K –OCTOBER 2000–REVISED JUNE 2016
LM4040-N/-Q1 Precision Micropower Shunt Voltage Reference
1
1 Features
1
• 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 2.048 V,
2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
• Key Specifications (2.5-V LM4040-N)
– Output Voltage Tolerance (A Grade, 25°C):
±0.1% (Maximum)
– Low Output Noise (10 Hz to 10 kHz): 35 μV
rms
(Typical)
– 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
(Maximum)
2 Applications
• Portable, Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation
• Process Controls
• Energy Management
• Product Testing
• Automotives
• Precision Audio Components
3 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 advanced design of the LM4040-N 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: 2.048 V, 2.5 V, 3 V, 4.096 V, 5
V, 8.192 V, and 10 V. The minimum operating current
increases from 60 μA for the 2.5-V LM4040-N to 100
μA for the 10-V LM4040-N. All versions have a
maximum operating current of 15 mA.
The LM4040-N uses a 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 1.2 V.
See the LM4041-N data sheet (SNOS641).
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
LM4040-N
TO-92 (3) 4.30 mm × 4.30 mm
SC70 (5) 2.00 mm × 1.25 mm
SOT-23 (3) 2.92 mm × 1.30 mm
LM4040-N-Q1 SOT-23 (3) 2.92 mm × 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Shunt Reference Application Schematic
页面指南
