LM1403N

LM1403 LM1403A Precision 2 50V Reference June 1988 LM1403 LM1403A Precision 2 50V Reference General Description The LM1403 is a precision monolithic temperature-compensated voltage reference The LM1403 makes use of thin-film technology enhanced by the discrete laser trimming of resistors to achieve excellent Temperature coefficient (Tempco) of VOUT (as low as 11 ppm C) along with tight initial tolerance (as low as 0 02%) The trim scheme is such that individual resistors are cut open rather than being trimmed (partially cut) to avoid resistor drift caused by electromigration in the trimmed area The LM1403 also provides excellent stability vs changes in input voltage and output current The output is current-limited and is short circuit proof Features Y Y Y Y Y Y Y Y Y Low cost Low 400 mA operating current Low output impedance (0 15X) Excellent line regulation (0 0001% V typical) Single-supply operation Low temperature coefficient Excellent initial accuracy (0 05% typical) Excellent for low-voltage operation (VS e 5V VREF e 2 500V) For tighter specs refer to LM368-2 5 Connection Diagram Dual-In-Line Package TL H 9757 – 1 Top View Order Number LM1403N or LM1403AN See NS Package Number N08E Typical Applications Low Voltage Reference TL H 9757 – 2 C1995 National Semiconductor Corporation TL H 9757 RRD-B30M115 Printed in U S A Absolute Maximum Ratings (Note 7) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Input Voltage Power Dissipation Output Short-Circuit Duration 40V 600 mW Continuous Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering 10 sec ) ESD rating to be determined b 60 C to a 150 C 0 C to a 70 C 260 C Electrical Characteristics (Note 1) LM1403 LM1403A Parameter Conditions Typical a 2 500 g 0 05 g 0 04 g1 0 g0 4 Tested Limit (Note 2) Design Limit (Note 3) Units (Max Unless Noted) V % % mV mV % 100 mW mA mA V VOUT VOUT Error LM1403 LM1403A Line Regulation Load Regulation (Note 8) Thermal Regulation Quiescent Current Change of Quiescent Current vs VIN Temperature Coefficient of VOUT (see graph) LM1403A (Note 5) LM1403 Short Circuit Current Noise 0 1 Hz – 10 Hz 100 Hz –10 kHz 4 5V s VIN s 40V 0 mA s ISOURCE s 10 mA T e 20 ms (Note 4) IL e 0 mA 5 0V s VIN s 30V 0 C s TA s 70 C 0 C s TA s 70 C VOUT e 0 02 15 g 0 005 3 10 g 0 02 0 350 3 g 11 g 15 1 50 g 25 g 40 ppm C ppm C mA mVp-p nV 0Hz 30 12 420 70 100 Note 1 Unless otherwise noted these specifications apply TA e 25 C 4 9V s VIN s 15 5V 0 s ILOAD s 0 5 mA 0 s CL s 200 pF Note 2 Tested Limits are guaranteed and 100% tested in production Note 3 Design Limits are guaranteed (but not 100% production tested) over the indicated temperature and supply voltage ranges These limits are used to calculate outgoing quality levels Note 4 Thermal Regulation is defined as the change in the output Voltage at a time T after a step change in power dissipation of 100 mW Note 5 Temperature Coefficient of VOUT is defined as the worst case delta-VOUT measured at Specified Temperatures divided by the total span of the Specified Temperature Range (See graphs) There is no guarantee that the Specified Temperatures are exactly at the minimum or maximum deviation Note 6 Thermal Resistance is 160 C W junction to ambient soldered into a PC board Note 7 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur DC and AC electrical specifications do not apply when operating the device beyond its Rated Operating Conditions (see Note 1 and Conditions) Note 8 Load regulation is measured on the output pin at a point below the base of the package Regulation is measured at constant junction temperature using pulse testing with a low duty cycle Changes in output voltage due to heating effects are covered under the specification for thermal regulation 2 Typical Performance Characteristics (Note 1) Quiescent Current vs Input Voltage and Temperature Dropout Voltage vs Output Current Output Change vs Output Current Output Impedance vs Frequency Ripple Rejection vs Frequency (1) LM1403 as is (2) With 10X in series with 10 mF VOUT to GND Temperature Coefficient Output Noise vs Frequency TL H 9757 – 3 Typical Temperature Coefficient Calculations T C e 1 7 mV (70 c 2 5V) e 9 7 ppm C 3 Typical Applications g 2 5V g 1 25V References Improved Noise Performance TL H 9757 – 4 TL H 9757 – 5 Re Thin Film Resistor Network g 0 05% Matching and 5 ppm Tracking (Beckman 694-3-R-10K-A) (Caddock T-914-10K-100-05) or similar Multiple Output Voltages R e Thin Film Resistor Network 0 05% Matching and 5 ppm Tracking (Beckman 694-3-R-10K-A) (Caddock T-914-10K-100-05) or similar TL H 9757–6 TL H 9757 – 7 Reference with Booster 100 mA Boosted Reference TL H 9757 – 8 TL H 9757 – 9 4 Typical Applications (Continued) Buffered High-Current Reference with Filter TL H 9757 – 10 Simplified Schematic Diagram TL H 9757 – 11 Reg U S Pat Off 5 LM1403 LM1403A Precision 2 50V Reference Physical Dimensions inches (millimeters) Lit 106560 Plastic Dual-In-Line Package (N) Order Number LM1403N or LM1403AN NS Package Number N08E LIFE SUPPORT POLICY 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 OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems 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 National Semiconductor Corporation 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 2 A critical component is any component of 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 Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications