VOLTAGE REFERENCE. LM4040A Datasheet

LM4040A REFERENCE. Datasheet pdf. Equivalent

Part LM4040A
Description PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
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LM4040A
Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
LM4040A, LM4040B
LM4040C, LM4040D
SLOS456N – JANUARY 2005 – REVISED OCTOBER 2017
LM4040 Precision Micropower Shunt Voltage Reference
1 Features
1 Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,
4.096 V, 5 V, 8.192 V, and 10 V
• Tight Output Tolerances and Low Temperature
Coefficient
– Max 0.1%, 100 ppm/°C – A Grade
– Max 0.2%, 100 ppm/°C – B Grade
– Max 0.5%, 100 ppm/°C – C Grade
– Max 1.0%, 150 ppm/°C – D Grade
• Low Output Noise: 35 μVRMS Typ
• Wide Operating Current Range: 45 μA Typ to 15
mA
• Stable With All Capacitive Loads; No Output
Capacitor Required
• Available in Extended Temperature Range: –40°C
to 125°C
2 Applications
• Data-Acquisition Systems
• Power Supplies and Power-Supply Monitors
• Instrumentation and Test Equipment
• Process Controls
• Precision Audio
• Automotive Electronics
• Energy Management
• Battery-Powered Equipment
3 Description
The LM4040 series of shunt voltage references are
versatile, easy-to-use references that cater to a vast
array of applications. The 2-pin fixed-output device
requires no external capacitors for operation and is
stable with all capacitive loads. Additionally, the
reference offers low dynamic impedance, low noise,
and low temperature coefficient to ensure a stable
output voltage over a wide range of operating
currents and temperatures. The LM4040 uses fuse
and Zener-zap reverse breakdown voltage trim during
wafer sort to offer four output voltage tolerances,
ranging from 0.1% (max) for the A grade to 1% (max)
for the D grade. Thus, a great deal of flexibility is
offered to designers in choosing the best cost-to-
performance ratio for their applications.
Packaged in space-saving SC-70 and SOT-23-3
packages and requiring a minimum current of 45 μA
(typ), the LM4040 also is ideal for portable
applications. The LM4040xI is characterized for
operation over an ambient temperature range of
–40°C to 85°C. The LM4040xQ is characterized for
operation over an ambient temperature range of
–40°C to 125°C.
Device Information(1)
PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)
LM4040
SOT-23 (3)
SC70 (6)
2.92 mm × 1.30 mm
2.00 mm × 1.25 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VS
RS
VZ
LM4040
IZ + IL
IL
IZ
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.



LM4040A
LM4040A, LM4040B
LM4040C, LM4040D
SLOS456N – JANUARY 2005 – REVISED OCTOBER 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 LM4040A20I, LM4040B20I Electrical
Characteristics ........................................................... 6
6.6 LM4040C20I, LM4040D20I Electrical
Characteristics ........................................................... 7
6.7 LM4040C20Q, LM4040D20Q Electrical
Characteristics ........................................................... 8
6.8 LM4040A25I, LM4040B25I Electrical
Characteristics ........................................................... 9
6.9 LM4040C25I, LM4040D25I Electrical
Characteristics ......................................................... 10
6.10 LM4040C25Q, LM4040D25Q Electrical
Characteristics ......................................................... 11
6.11 LM4040A30I, LM4040B30I Electrical
Characteristics ......................................................... 12
6.12 LM4040C30I, LM4040D30I Electrical
Characteristics ......................................................... 13
6.13 LM4040C30Q, LM4040D30Q Electrical
Characteristics ......................................................... 14
6.14 LM4040A41I, LM4040B41I Electrical
Characteristics ......................................................... 15
6.15 LM4040C41I, LM4040D41I Electrical
Characteristics ......................................................... 16
6.16 LM4040A50I, LM4040B50I Electrical
Characteristics ......................................................... 17
6.17 LM4040C50I, LM4040D50I Electrical
Characteristics ......................................................... 18
6.18 LM4040C50Q, LM4040D50Q Electrical
Characteristics ......................................................... 19
6.19 LM4040A82I, LM4040B82I Electrical
Characteristics ......................................................... 20
6.20 LM4040C82I, LM4040D82I Electrical
Characteristics ......................................................... 21
6.21 LM4040A10I, LM4040B10I Electrical
Characteristics ......................................................... 22
6.22 LM4040C10I, LM4040D10I Electrical
Characteristics ......................................................... 23
6.23 Typical Characteristics .......................................... 24
7 Detailed Description ............................................ 25
7.1 Overview ................................................................. 25
7.2 Functional Block Diagram ....................................... 25
7.3 Feature Description................................................. 25
7.4 Device Functional Modes........................................ 25
8 Applications and Implementation ...................... 26
8.1 Application Information............................................ 26
8.2 Typical Applications ................................................ 26
9 Power Supply Recommendations...................... 29
10 Layout................................................................... 29
10.1 Layout Guidelines ................................................. 29
10.2 Layout Example .................................................... 29
11 Device and Documentation Support ................. 30
11.1 Related Links ........................................................ 30
11.2 Trademarks ........................................................... 30
11.3 Electrostatic Discharge Caution ............................ 30
11.4 Glossary ................................................................ 30
12 Mechanical, Packaging, and Orderable
Information ........................................................... 30
4 Revision History
Changes from Revision M (January 2015) to Revision N
Page
• Changed generic part number to include shorter list (LM4040A/B/C/D) ................................................................................ 1
• Added Average temperature coefficient of reverse breakdown voltage footnote to all electrical tables ................................ 6
• Changed Thermal hysteresis in electrical characteristics tables............................................................................................ 6
Changes from Revision L (January 2009) to Revision M
Page
• Added Applications, Device Information table, Pin Functions table, ESD Ratings table, Thermal Information table,
Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply
Recommendations section, Layout section, Device and Documentation Support section, and Mechanical,
Packaging, and Orderable Information section. ..................................................................................................................... 1
• Deleted Ordering Information table. ....................................................................................................................................... 1
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Product Folder Links: LM4040A LM4040B LM4040C LM4040D





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