LM4050AIM3-2.5/NOPB National Semiconductor, LM4050AIM3-2.5/NOPB Datasheet

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LM4050AIM3-2.5/NOPB

Manufacturer Part Number
LM4050AIM3-2.5/NOPB
Description
IC VREF PREC MICROPWR SOT23-3
Manufacturer
National Semiconductor
Datasheet

Specifications of LM4050AIM3-2.5/NOPB

Reference Type
Shunt
Voltage - Output
2.5V
Tolerance
±0.1%
Temperature Coefficient
50ppm/°C
Number Of Channels
1
Current - Cathode
60µA
Current - Output
15mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Input
-
Current - Quiescent
-
Other names
LM4050AIM3-2.5
LM4050AIM3-2.5TR

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© 2004 National Semiconductor Corporation
LM4050
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4050 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SOT-23 surface-mount package. The LM4050’s de-
sign eliminates the need for an external stabilizing capacitor
while ensuring stability with any capacitive load, thus making
the LM4050 easy to use. Further reducing design effort is the
availability of several fixed reverse breakdown voltages:
2.048V, 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V. The
minimum operating current increases from 60 µA for the
LM4050-2.0 to 100 µA for the LM4050-10.0. All versions
have a maximum operating current of 15 mA.
The LM4050 utilizes fuse and zener-zap reverse breakdown
voltage trim during wafer sort to ensure that the prime parts
have an accuracy of better than
Bandgap reference temperature drift curvature correction
and low dynamic impedance ensure stable reverse break-
down voltage accuracy over a wide range of operating tem-
peratures and currents.
All grades and voltage options of the LM4050 are available
in both an industrial temperature range (−40˚C and +85˚C)
and an extended temperature range (−40˚C and +125˚C).
Features
n Small packages: SOT-23
n No output capacitor required
Connection Diagram
*This pin must be left floating or connected to pin 2.
±
0.1% (A grade) at 25˚C.
DS101045
See NS Package Number MF03A
Top View
SOT-23
10104501
n Tolerates capacitive loads
n Fixed reverse breakdown voltages of 2.048V, 2.500V,
Key Specifications (LM4050-2.5)
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Product Testing
n Automotive
n Precision Audio Components
j
j
j
j
j
j
4.096V, 5.000V, 8.192V, and 10.000V
(10 Hz to 10 kHz)
Output voltage tolerance
Low output noise
Wide operating current range
Industrial temperature range
Extended temperature range
Low temperature coefficient
(A grade, 25˚C)
−40˚C to +125˚C
50 ppm/˚C (max)
60 µA to 15 mA
−40˚C to +85˚C
41 µV
±
www.national.com
0.1% (max)
July 2004
rms
(typ)

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LM4050AIM3-2.5/NOPB Summary of contents

Page 1

... Features n Small packages: SOT- output capacitor required Connection Diagram *This pin must be left floating or connected to pin 2. © 2004 National Semiconductor Corporation n Tolerates capacitive loads n Fixed reverse breakdown voltages of 2.048V, 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V Key Specifications (LM4050-2.5) j Output voltage tolerance (A grade, 25˚ ...

Page 2

... LM4050BEM3-2.0 LM4050BEM3-2.5 LM4050BEM3-4.1 LM4050BEM3-5.0 LM4050BEM3-8.2 LM4050BEM3-10 LM4050CEM3-2.0 LM4050CEM3-2.5 LM4050CEM3-4.1 LM4050CEM3-5.0 LM4050CEM3-8.2 LM4050CEM3-10 2 LM4050 Supplied as 3000 Units, Tape and Reel LM4050AIM3X-2.0 LM4050AIM3X-2.5 LM4050AIM3X-4.1 LM4050AIM3X-5.0 LM4050AIM3X-8.2 LM4050AIM3X-10 LM4050BIM3X-2.0 LM4050BIM3X-2.5 LM4050BIM3X-4.1 LM4050BIM3X-5.0 LM4050BIM3X-8.2 LM4050BIM3X-10 LM4050CIM3X-2.0 LM4050CIM3X-2.5 LM4050CIM3X-4.1 LM4050CIM3X-5.0 LM4050CIM3X-8.2 LM4050CIM3X-10 LM4050 Supplied as 3000 Units, Tape and Reel LM4050AEM3X-2 ...

Page 3

SOT-23 Package Marking Information Only three fields of marking are possible on the SOT-23’s small surface. This table gives the meaning of the three fields. Part Marking RCA First Field: RDA R = Reference REA Second Field: RFA N = ...

Page 4

... LM4050-2.5 LM4050-4.1 LM4050-5.0 +215˚C LM4050-8.2 +220˚C LM4050-10 200V = all other limits MIN MAX A J ± ± 0.1%, 0.2%, and 0.5% respectively. LM4050AIM3 Typical LM4050AEM3 Conditions (Note 100 µA 2.048 100 µA R Industrial Temp. Range Extended Temp. Range 41 ± ± ...

Page 5

... T ; all other limits 25˚C. The grades A, B and C designate initial MIN MAX A J ± ± 0.1%, 0.2%, and 0.5% respectively. LM4050AIM3 Typical LM4050AEM3 Conditions (Note 100 µA 4.096 100 µA R Industrial Temp. Range Extended Temp. Range 52 Industrial Temp ...

Page 6

... The grades A, B and C designate initial LM4050AIM3 LM4050BIM3 LM4050CIM3 LM4050AEM3 LM4050BEM3 LM4050CEM3 Limits Limits Limits (Note 5) (Note 5) (Note 5) = 25˚C. The grades A, B and C designate initial LM4050AIM3 LM4050BIM3 LM4050CIM3 LM4050AEM3 LM4050BEM3 LM4050CEM3 Limits Limits Limits (Note 5) (Note 5) (Note 5) ± ± ...

Page 7

... Thermal Hysteresis HYST (Note all other limits 25˚C. The grades A, B and C designate initial MIN MAX A J ± ± 0.1% and 0.2% and 0.5% respectively. LM4050AIM3 Typical LM4050AEM3 Conditions (Note 150 µA 8.192 150 µA R Industrial Temp. Range Extended Temp. Range 74 Industrial Temp ...

Page 8

... Jmax temperature coefficient, max∆T is the maximum difference in temperature from the reference point of 25˚ 25˚C. The grades A, B and C designate initial LM4050AIM3 LM4050BIM3 LM4050CIM3 LM4050AEM3 LM4050BEM3 LM4050CEM3 Limits Limits ...

Page 9

Typical Performance Characteristics Output Impedance vs Frequency Reverse Characteristics and Minimum Operating Current Thermal Hysteresis Output Impedance vs Frequency 10104510 Noise Voltage vs Frequency 10104512 10104529 9 10104511 10104513 www.national.com ...

Page 10

Start-Up Characteristics LM4050-2 LM4050-5 www.national.com 10104505 = 30k 10104507 = 30k 10104508 10 LM4050-10 30k S 10104509 ...

Page 11

Functional Block Diagram Applications Information The LM4050 is a precision micro-power curvature-corrected bandgap shunt voltage reference. For space critical applica- tions, the LM4050 is available in the sub-miniature SOT-23 surface-mount package. The LM4050 has been designed for stable operation without ...

Page 12

Typical Applications * * Ceramic monolithic *Tantalum FIGURE 2. LM4050-4.1’s Nominal 4.096 breakdown voltage gives ADC12451 1 mV/LSB www.national.com (Continued) 12 10104516 ...

Page 13

Typical Applications (Continued) FIGURE 3. Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping voltage is FIGURE 4. Protecting Op Amp input. The bounding voltage is (LM4050’s reverse breakdown voltage + 3 diode V ± 11.5V ...

Page 14

Typical Applications www.national.com (Continued) ± FIGURE 5. Precision 4.096V Reference FIGURE 6. Precision 1 µ Current Sources 14 10104519 10104521 10104522 ...

Page 15

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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