MICROCIRCUIT DATA SHEET Original Creation Date: 08/15/95 Last Update Date: 05/17/99 Last Major Revision Date: 11/07/98 MNLM185-1.2-X REV 0A0 1.2V MICROPOWER VOLTAGE REFERENCE DIODE General Description The LM185-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating over a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM185-1.2 band-gap reference uses only transistors and resistors, low noise and good long term stability result. Careful design of the LM185-1.2 has made the device exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the LM185-1.2 makes it useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life. Further, the wide operating current allows it to replace older references with a tighter tolerance part. Industry Part Number NS Part Numbers LM185 LM185E-1.2/883 LM185H-1.2-SMD LM185H-1.2/883 Prime Die LM185 Controlling Document SEE FEATURES SECTION Processing Subgrp Description MIL-STD-883, Method 5004 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection MIL-STD-883, Method 5005 1 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 MICROCIRCUIT DATA SHEET MNLM185-1.2-X REV 0A0 Features - Operating current of 10 uA to 20 uA 1.0 Ohms max dynamic impedance (Typical) Low temperature coefficient Low voltage reference-1.235V CONTROLLING DOCUMENT: LM185E-1.2/883 5962-87594012A LM185H-1.2-SMD 5962-8759401XA 2 MICROCIRCUIT DATA SHEET MNLM185-1.2-X REV 0A0 (Absolute Maximum Ratings) (Note 1) Reverse Current 30mA Forward Current 10mA Operating Temperature Range -55 C to +125 C Maximum Junction Temperature 150 C Storage Temperature -55 C to +150 C Lead Temperature (Soldering, 10 seconds) Thermal Resistance ThetaJA H-Pkg (Still Air) (500LF/Min Air Flow) E-Pkg (Still Air) (500LF/Min Air Flow) 300 C 300 139 100 73 ThetaJC H-Pkg E-Pkg Package Weight (Typcial) Note 1: C/W C/W C/W C/W 57 C/W 25 C/W 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 conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. 3 MICROCIRCUIT DATA SHEET MNLM185-1.2-X REV 0A0 Electrical Characteristics DC PARAMETERS SYMBOL PARAMETER Vref Reverse Breakdown Voltage CONDITIONS NOTES PINNAME MAX Ir = 10uA 1.223 1.247 V 1 Ir = 20uA 1.205 1.26 V 2, 3 Ir = 1mA 1.223 1.247 V 1 1.205 1.26 V 2, 3 1.223 1.247 V 1 1.205 1.26 V 2, 3 10uA < Ir < 1mA -1.0 1.0 mV 1 20uA < Ir < 1mA -1.5 1.5 mV 2, 3 1mA < Ir < 20mA -10.0 10.0 mV 1 -20.0 20.0 mV 2, 3 -1.0 -0.4 V 1 Ir = 20mA Delta Vref/Delta Ir Vf Reverse Breakdown Voltage Change with Current Forward Bias Voltage If = 2mA Graphics and Diagrams GRAPHICS# DESCRIPTION 05886HRB2 METAL CAN,TO-46,2LD,.100 DIA P.C. (H) (B/I CKT) 06175HRB2 LCC (E), TYPE C, 20 TERMINAL (B/I CKT) E20ARE LCC (E), TYPE C, 20 TERMINAL(P/P DWG) H02ARE METAL CAN,TO-46,2LD,.100 DIA P.C. (H)(P/P DWG) P000329B LCC (E-1.2), 20 LEAD (PINOUT) P000363A METAL CAN (H-1.2), TO-46, 2 LEAD (PINOUT) See attached graphics following this page. 4 UNIT SUBGROUPS MIN N/C N/C GND- N/C N/C 3 2 1 20 19 18 N/C 5 17 N/C N/C 6 16 N/C N/C 7 15 N/C N/C 8 14 N/C N/C 4 N/C 9 N/C 10 11 12 N/C VREF+ N/C 13 N/C LM185E-1.2 20 - LEAD LCC CONNECTION DIAGRAM TOP VIEW P000329B N MIL/AEROSPACE OPERATIONS 2900 SEMICONDUCTOR DRIVE SANTA CLARA, CA 95050 N MICROCIRCUIT DATA SHEET MNLM185-1.2-X REV 0A0 Revision History Rev ECN # 0A0 M0003216 05/17/99 Rel Date Originator Changes Rose Malone Archive RETS185X-1.2, Rev. 0A. Update MDS MNLM185-X-1.2, Rev. 0AL to MNLM185-1.2-X, Rev. 0A0, Fully Released MDS. Updated Discription, Features and Absolute section. Changed nomenclature. 5