LM4041AIZ-1.2 National Semiconductor, LM4041AIZ-1.2 Datasheet

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LM4041AIZ-1.2

Manufacturer Part Number
LM4041AIZ-1.2
Description
Precision Micropower Shunt Voltage Reference
Manufacturer
National Semiconductor
Datasheet
© 1999 National Semiconductor Corporation
LM4041
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4041 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SOT-23 surface-mount package. The LM4041’s ad-
vanced design eliminates the need for an external stabilizing
capacitor while ensuring stability with any capacitive load,
thus making the LM4041 easy to use. Further reducing de-
sign effort is the availability of a fixed (1.225V) and adjust-
able reverse breakdown voltage. The minimum operating
current is 60 µA for the LM4041-1.2 and the LM4041-ADJ.
Both versions have a maximum operating current of 12 mA.
The LM4041 utilizes fuse and zener-zap reverse breakdown
or reference voltage trim during wafer sort to ensure that the
prime parts have an accuracy of better than
(A grade) at 25˚C. Bandgap reference temperature drift cur-
vature correction and low dynamic impedance ensure stable
reverse breakdown voltage accuracy over a wide range of
operating temperatures and currents.
Features
n Small packages: SOT-23, and TO-92
n No output capacitor required
n Tolerates capacitive loads
n Reverse breakdown voltage options of 1.225V and
Connection Diagrams
*This pin must be left floating or connected to pin 2.
adjustable
DS011392-1
DS011392-3
DS011392
(JEDEC Registration TO-236AB)
See NS Package Number M03B
See NS Package Number Z03A
±
0.1%
Bottom View
Top View
SOT-23
TO-92
Key Specifications (LM4041-1.2)
n Output voltage tolerance
n Low output noise
n Wide operating current range
n Industrial temperature range
n Extended temperature range
n Low temperature coefficient
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Automotive
n Precision Audio Components
(A grade, 25˚C)
(10 Hz to 10kHz)
DS011392-40
DS011392-32
100 ppm/˚C (max)
−40˚C to +125˚C
−40˚C to +85˚C
60µA to 12mA
October 1999
www.national.com
±
0.1%(max)
20µV
rms

Related parts for LM4041AIZ-1.2

LM4041AIZ-1.2 Summary of contents

Page 1

... Tolerates capacitive loads n Reverse breakdown voltage options of 1.225V and adjustable Connection Diagrams DS011392-1 *This pin must be left floating or connected to pin 2. DS011392-3 © 1999 National Semiconductor Corporation DS011392 Key Specifications (LM4041-1.2) n Output voltage tolerance (A grade, 25˚C) n Low output noise ( 10kHz) n Wide operating current range ...

Page 2

... Voltage Option A = Adjustable Third Field: A–E = Initial Reverse Breakdown Voltage or Reference Voltage Tolerance ± ± ± 0.1 0.2 0.5 (TO-92) LM4041AIZ-1.2 See NS Package Number Z03A LM4041BIZ-1.2 See NS Package Number Z03A LM4041CIZ-1.2, LM4041CIZ-ADJ See NS Package Number Z03A LM4041DIZ-1.2, LM4041DIZ-ADJ See NS Package Number Z03A LM4041EIZ-1 ...

Page 3

... Output Voltage Range +220˚C LM4041-ADJ all other limits 25˚C. The grades A and B designate initial Re- MAX A J ± 0.2%, respectively. Typical LM4041AIM3 LM4041BIM3 Conditions (Note 4) LM4041AIZ Limits (Note 100 µA 1.225 R ± 100 µA R ± 45 ± ± ...

Page 4

LM4041-1.2 Electrical Characteristics (Industrial Temperature Range) Boldface limits apply for MIN ± verse Breakdown Voltage tolerances of Symbol Parameter Conditions V Reverse Breakdown I = 100 µ Voltage Reverse Breakdown I ...

Page 5

LM4041-1.2 Electrical Characteristics (Extended Temperature Range) Boldface limits apply for MIN ± verse Breakdown Voltage tolerance of 0.5%, and ± 2.0 respectively. Symbol Parameter Conditions V Reverse Breakdown I = 100 µA R ...

Page 6

LM4041-ADJ (Adjustable) Electrical Characteristics (Industrial Temperature Range) Boldface limits apply for MIN mA 10V. The grades C and D designate initial Reference Voltage Tolerances of RMIN R REF ...

Page 7

LM4041-ADJ (Adjustable) Electrical Characteristics (Extended Temperature Range) Boldface limits apply for MIN mA 10V. The grades C and D designate initial Reference Voltage Tolerances of RMIN R REF ...

Page 8

Electrical Characteristics (continued) Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test ...

Page 9

Typical Performance Characteristics Noise Voltage Start-Up Characteristics Reference Voltage vs Output Voltage and Temperature (Continued) Reverse Characteristics and Minimum Operating Current DS011392-5 DS011392-7 Reference Voltage vs Temperature and Output Voltage DS011392-11 9 DS011392-9 DS011392-8 DS011392-10 www.national.com ...

Page 10

Typical Performance Characteristics Feedback Current vs Output Voltage and Temperature Output Impedance vs Frequency Reverse Characteristics www.national.com (Continued) Output Saturation (SOT-23 Only) DS011392-12 Output Impedance vs Frequency DS011392-13 DS011392-15 10 DS011392-33 DS011392-14 DS011392-16 ...

Page 11

Typical Performance Characteristics Large Signal Response DS011392-17 Functional Block Diagram *LM4041-ADJ only **LM4041-1.2 only (Continued) DS011392-18 DS011392-21 11 www.national.com ...

Page 12

Applications Information The LM4041 is a precision micro-power curvature-corrected bandgap shunt voltage reference. For space critical applica- tions, the LM4041 is available in the sub-miniature SOT-23 surface-mount package. The LM4041 has been designed for stable operation without the need of ...

Page 13

Typical Applications (Continued) FIGURE 3. Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping voltage is DS011392-20 FIGURE 4. Voltage Level Detector DS011392-24 ± V (LM4041’s reverse breakdown voltage) +2 diode V O FIGURE 5. Voltage ...

Page 14

Typical Applications (Continued) DS011392-25 FIGURE 6. Fast Positive Clamp 2. DS011392-26 FIGURE 7. Bidirectional Clamp FIGURE 10. Simple Floating Current Detector www.national.com FIGURE 8. Bidirectional Adjustable Clamp ± 2.4V FIGURE 9. Bidirectional Adjustable Clamp 14 DS011392-35 ± ...

Page 15

Typical Applications (Continued) Note 9: *D1 can be any LED 1. mA. D1 may act as an indicator. D1 will FIGURE 12. Precision Floating Current Detector DS011392-38 FIGURE ...

Page 16

Typical Applications (Continued) FIGURE 13. Precision 1 µ Current Sources www.national.com DS011392-28 DS011392-29 16 ...

Page 17

Physical Dimensions inches (millimeters) unless otherwise noted Plastic Surface Mount Package (M3) NS Package Number M03B (JEDEC Registration TO-236AB) Plastic Package (Z) NS Package Number Z03A 17 www.national.com ...

Page 18

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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