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LM4040-N_15 Datasheet, PDF (1/67 Pages) Texas Instruments – Precision Micropower Shunt Voltage Reference | |||
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LM4040-N, LM4040-N-Q1
SNOS633J â OCTOBER 2000 â REVISED AUGUST 2015
LM4040-N/-Q1 Precision Micropower Shunt Voltage Reference
1 Features
â¢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)
â Output Voltage Tolerance (A Grade, 25°C):
±0.1% (Maximum)
â Low Output Noise (10 Hz to 10 kHz): 35 μVrms
(Typical)
â Wide Operating Current Range: 60 μA to 15
mA
â Industrial Temperature Range: â40°C to 85°C
â Extended Temperature Range: â40°C to
125°C
â 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)
TO-92 (3)
4.30 mm à 4.30 mm
LM4040-N
SC70 (5)
2.00 mm à 1.25 mm
SOT-23 (3)
2.92 mm à 1.30 mm
LM4040-N-Q1
SOT-23 (3)
2.92 mm à 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Shunt Reference Application Schematic
VDD
RS
VOUT
Cathode
Anode
LM4040
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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