LM4030

LM4030 NSC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 14

Technical content

Features

■ 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 ■ SOT23-5 Package

Applications

■ Data Acquisition/Signal path ■ Test and Measurement ■ Automotive & Industrial ■ Communications ■ Instrumentation ■ Power Management Typical Application Circuit 30046301 Connection Diagram Top View 30046302 © 2008 National Semiconductor Corporation 300463 www.national.com LM4030 SOT-23 Ultra-High Precision Shunt Voltage Reference

Ordering Information

Input Output Voltage Accuracy at 25°C And Temperature Coefficient LM4030 Supplied as 1000 units, Tape and Reel LM4030 Supplied as 3000 units, Tape and Reel Part Marking 0.05%, 10 ppm/°C max (A grade) LM4030AMF-2.5 LM4030AMFX-2.5 R5JA LM4030AMF-4.096 LM4030AMFX4.096 R5KA 0.10%, 20 ppm/°C max (B grade) LM4030BMF-2.5 LM4030BMFX-2.5 R5JB LM4030BMF-4.096 LM4030BMFX4.096 R5KB 0.15%, 30 ppm/°C max (C grade) LM4030CMF-2.5 LM4030CMFX-2.5 R5JC LM4030CMF-4.096 LM4030CMFX4.096 R5KC 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

www.national.com 2 LM4030

Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Maximum Voltage on any input -0.3 to 6V Power Dissipation (TA = 25°C) (Note 2) 350mW Storage Temperature Range −65°C to 150°C Lead Temperature ( soldering, 10sec) 260°C Vapor Phase (60 sec) 215°C Infrared (15sec) 220°C ESD Susceptibility (Note 3) Human Body Model 2kV Operating Ratings Maximum Continuous Shunt Current 30mA Maximum Shunt Current (<1s) 50mA Junction Temperature Range (TJ) −40°C to +125°C

Electrical Characteristics

LM4030-2.5 (VOUT = 2.5V) Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min (Note 4) Typ (Note 5) Max (Note 4) Unit VREF Reverse Breakdown Voltage ISHUNT = 120µA 2.5 V Reverse Breakdown Voltage Tolerance (ISHUNT = 120µA) IRMIN Minimum Operating Current 120 µA TC Temperature Coefficient (Note 6) LM4030A-2.5 0°C ≤ TJ ≤ + 85°C 10 ppm / °C -40°C ≤ TJ ≤ +125°C 20 ppm / °C LM4030B-2.5 -40°C ≤ TJ ≤ +125°C 20 ppm / °C LM4030C-2.5 -40°C ≤ TJ ≤ +125°C 30 ppm / °C ΔVREF/ΔISHUNT Reverse Breakdown Voltage Change with Current 160µA ≤ ISHUNT ≤ 30mA 25 110 ppm / mA ΔVREF Long Term Stability (Note 7) 1000 Hrs, TA = 30°C 40 ppm VHYST Thermal Hysteresis (Note 8) -40°C ≤ TJ ≤ +125°C 75 ppm VN Output Noise Voltage (Note 9) 0.1 Hz to 10 Hz 105 µVPP 3 www.national.com LM4030

LM4030-4.096 (VOUT = 4.096V) Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min (Note Typ (Note Max (Note 4) Unit VREF Reverse Breakdown Voltage ISHUNT = 130µA 4.096 V Reverse Breakdown Voltage Tolerance ( ISHUNT = 130µA) LM4030A-4.096 (A Grade - 0.05%) -0.05 0.05 % LM4030B-4.096 (B Grade - 0.10%) -0.10 0.10 % LM4030C-4.096 (C Grade - 0.15%) -0.15 0.15 % IRMIN Minimum Operating Current 130 µA TC Temperature Coefficient (Note 6) LM4030A-4.096 0°C ≤ TJ ≤ + 85°C 10 ppm / °C -40°C ≤ TJ ≤ +125°C 20 ppm / °C LM4030B-4.096 -40°C ≤ TJ ≤ +125°C 20 ppm / °C LM4030C-4.096 -40°C ≤ TJ ≤ +125°C 30 ppm / °C ΔVREF/ΔILOAD Reverse Breakdown Voltage Change with Current 160µA ≤ ISHUNT ≤ 30mA 15 95 ppm / mA ΔVREF Long Term Stability (Note 7) 1000 Hrs, TA = 30°C 40 ppm VHYST Thermal Hysteresis (Note 8) -40°C ≤ TJ ≤ +125°C 75 ppm VN Output Noise Voltage (Note 9) 0.1 Hz to 10 Hz 165 µVPP Note 1: 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 guarantee specific performance limits. For guaranteed specifications, see Electrical Characteristics. Note 2: 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 SOT23-5 package is 220°C/W, TJMAX = 125°C. Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. Note 4: Limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control. Note 5: Typical numbers are at 25°C and represent the most likely parametric norm. Note 6: Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT. Note 7: Long term stability is VREF @25°C measured during 1000 hrs. This measurement is taken for IR = 500 µA. Note 8: Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C) eight times. Note 9: Low frequency peak-to-peak noise measured using first-order 0.1 Hz HPF and second-order 10 Hz LPF. www.national.com 4 LM4030

Typical Performance Characteristics for 2.5V Output Voltage vs Temperature 30046332 0.1 - 10 Hz Peak-to-Peak Noise 30046303 Start Up - 120 µA 30046304 Start Up - 50 mA 30046305 Reverse Breakdown Voltage Change with Current 30046314 Reverse Dynamic Impedance vs Frequency 30046340 5 www.national.com LM4030

Typical Performance Characteristics for 4.096V Output Voltage vs Temperature 30046349 0.1 - 10 Hz Peak-to-Peak Noise 30046306 Start Up - 130 µA 30046307 Start Up - 50 mA 30046308 Reverse Breakdown Voltage Change with Current 30046312 Reverse Dynamic Impedance vs Frequency 30046341 www.national.com 6 LM4030

Typical Performance Characteristics Forward Characteristic 30046311 Load Transient Response 30046313 Minimum Operating Current 30046316 Noise Spectrum 30046317 Thermal Hysteresis Distribution 30046330 Output Voltage vs Thermal Cycle (-40°C to 125°C) 30046351 7 www.national.com LM4030

Long Term Stability (TA = 25°C) 30046347 Long Term Stability (TA =125°C) 30046348 www.national.com 8 LM4030

VREF2 = VREF after temperature fluctuation. (typical) from -40°C to 125°C after 8 temperature cycles. temperature may be illustrated as shown in Figure 5. FIGURE 5. Illustrative VREF vs Temperature Profile ΔT = Operating temperature range. to 30ppm (max), depending on the grade. despite being packaged in a tiny SOT23. plication, one expression may be more useful than the other. VREF is in volts (V) and VERROR is in milli-volts (mV). VREF is in volts (V) and VERROR is in milli-volts (mV). VREF is in volts (V) and VERROR is in milli-volts (mV).

PRINTED CIRCUIT BOARD and LAYOUT CONSIDERATIONS The LM4030 has a very small change in reverse voltage with current (25ppm/mA typical) so large variations in load current (up to 50mA) should not appreciably shift VREF. Parasitic re- sistance between the LM4030 and the load introduces a voltage drop proportional to load current and should be min- imized. The LM4030 should be placed as close to the load it is driving as the layout will allow. The location of R Z is not important, but C OUT should be as close to the LM4030 as possible so added ESR does not degrade the transient per- formance. 11 www.national.com LM4030

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com 12 LM4030

13 www.national.com LM4030

LM4030 SOT-23 Ultra-High Precision Shunt Voltage Reference For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Design Support Amplifiers www.national.com/amplifiers WEBENCH www.national.com/webench Audio www.national.com/audio Analog University www.national.com/AU Clock Conditioners www.national.com/timing App Notes www.national.com/appnotes Data Converters www.national.com/adc Distributors www.national.com/contacts Displays www.national.com/displays Green Compliance www.national.com/quality/green Ethernet www.national.com/ethernet Packaging www.national.com/packaging Interface www.national.com/interface Quality and Reliability www.national.com/quality LVDS www.national.com/lvds Reference Designs www.national.com/refdesigns Power Management www.national.com/power Feedback www.national.com/feedback Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www.national.com/led PowerWise www.national.com/powerwise Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors Wireless (PLL/VCO) www.national.com/wireless THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL’S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. EXCEPT AS PROVIDED IN NATIONAL’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. Copyright© 2008 National Semiconductor Corporation For the most current product information visit us at www.national.com National Semiconductor Americas Technical Support Center Email: support@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Technical Support Center Email: europe.support@nsc.com German Tel: +49 (0) 180 5010 771 English Tel: +44 (0) 870 850 4288 National Semiconductor Asia Pacific Technical Support Center Email: ap.support@nsc.com National Semiconductor Japan Technical Support Center Email: jpn.feedback@nsc.com www.national.com