LM4030
www.ti.com
SNVS552B – MARCH 2008 – REVISED APRIL 2013
LM4030 SOT-23 Ultra-High Precision Shunt Voltage Reference
Check for Samples: LM4030
FEATURES
DESCRIPTION
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The LM4030 is an ultra-high precision shunt voltage
reference, having exceptionally high initial accuracy
(0.05%) and temperature stability (10ppm/°C). The
LM4030 is available with fixed voltage options of 2.5V
and 4.096V. Despite the tiny SOT-23 package, the
LM4030 exhibits excellent thermal hysteresis
(75ppm) and long-term stability (40ppm) as well as
immunity to board stress effects.
1
2
High Output Voltage Accuracy 0.05%
Low Temperature Coefficient 10 ppm/°C
Extended Temperature Operation -40-125°C
Excellent Thermal Hysteresis, 75ppm
Excellent Long-Term Stability, 40ppm
High Immunity to Board Stress Effects
Capable of Handling 50 mA Transients
Voltage Options 2.5V, 4.096V
SOT-23 Package
The LM4030 is designed to operate without an
external capacitor, but any capacitor up to 10µF may
be used. The LM4030 can be powered off as little as
120µA (max) but is capable of shunting up to 30mA
continuously. As with any shunt reference, the
LM4030 can be powered off of virtually any supply
and is a simple way to generate a highly accurate
system reference.
APPLICATIONS
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Data Acquisition/Signal path
Test and Measurement
Automotive & Industrial
Communications
Instrumentation
Power Management
The LM4030 is available in three grades (A, B, and
C). The best grade devices (A) have an initial
accuracy of 0.05% with ensured temperature
coefficient of 10 ppm/°C or less, while the lowest
grade parts (C) have an initial accuracy of 0.15% and
a temperature coefficient of 30 ppm/°C.
Typical Application Circuit
VIN
RZ
IBIAS
ILOAD
VREF
4
ISHUNT
COUT
5
Connection Diagram
N/C 1
5
- GND
4
+ VREF
N/C or GND 2
N/C
3
SOT-23 Package
(Top View)
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2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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.
Copyright © 2008–2013, Texas Instruments Incorporated
LM4030
SNVS552B – MARCH 2008 – REVISED APRIL 2013
www.ti.com
PIN DESCRIPTIONS
Pin #
Name
Function
1
N/C
No connect pin, leave floating
2
GND, N/C
Ground or no connect
3
N/C
No connect pin, leave floating
4
VREF
Reference voltsge
5
GND
Ground
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1) (2)
Maximum Voltage on any input
Power Dissipation (TA = 25°C)
-0.3 to 6V
(3)
350mW
−65°C to 150°C
Storage Temperature Range
Lead Temperature
(soldering, 10sec)
260°C
Vapor Phase (60 sec)
215°C
Infrared (15sec)
220°C
ESD Susceptibility (4)
Human Body Model
(1)
(2)
(3)
(4)
2kV
Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical
Characteristics.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by TJMAX
(maximum junction temperature), θJ-A (junction to ambient thermal resistance) and TA (ambient temperature). The maximum power
dissipation at any temperature is: PDissMAX = (TJMAX - TA) /θJ-A up to the value listed in the Absolute Maximum Ratings. θJ-A for SOT-23
package is 220°C/W, TJMAX = 125°C.
The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Operating Ratings
Maximum Continuous Shunt Current
30mA
Maximum Shunt Current (
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