MICROCIRCUIT DATA SHEET Original Creation Date: 08/15/95 Last Update Date: 02/25/03 Last Major Revision Date: 08/15/95 MNLM185B-X REV 0B0 ADJUSTABLE MICROPOWER VOLTAGE REFERENCE General Description The LM185B is a micropower 3-terminal adjustable band-gap voltage reference diode. Operating from 1.24 to 5.3V and 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 LM185B band-gap reference uses only transistors and resistors, low noise and good long-term stability result. Careful design of the LM185B has made the device 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 LM185B 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 LM185B LM185BE/883 LM185BH/883 Prime Die LM185 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 MNLM185B-X REV 0B0 Features - Adjustable from 1.24V to 5.30V. Operating current of 10 uA to 20 mA. 1% and 2% initial tolerance. 1 Ohm dynamic impedance. Low temperature coefficient. 2 MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 (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 E-Pkg (Still Air) E-Pkg (500LF/Min Air flow) H-Pkg (Still Air) H-Pkg (500LF/Min Air flow) 300 C 100 73 300 139 ThetaJC E-Pkg H-Pkg Package Weight (Typical) E-Pkg H-Pkg ESD Tolerance (Note 2) C/W C/W C/W C/W 25 C/W 57 C/W TBD TBD 500V Note 1: Note 2: 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. Human body model, 1.5k Ohms in series with 100pF 3 MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 Electrical Characteristics DC PARAMETERS SYMBOL Vref PARAMETER Reference Voltage CONDITIONS NOTES MAX 1.228 1.252 V 1 1.215 1.255 V 2, 3 Ir = 9uA 1.228 1.252 V 1 Ir = 10uA 1.215 1.255 V 2, 3 Ir = 1mA 1.228 1.252 V 1 1.215 1.255 V 2, 3 1.228 1.252 V 1 1.215 1.255 V 2, 3 1.228 1.252 V 1 1.215 1.255 V 2, 3 Vr = 5.3V, Ir = 45uA 1.288 1.252 V 1 Vr = 5.3V, Ir = 50uA 1.215 1.255 V 2, 3 Vr = 5.3V, Ir = 1.0mA 1.288 1.252 V 1 1.215 1.255 V 2, 3 1.288 1.252 V 1 1.215 1.255 V 2, 3 9uA < Ir < 1mA 1 mV 1 10uA < Ir < 1mA 1.5 mV 2, 3 1mA < Ir < 20mA 10 mV 1 20 mV 2, 3 Vr = 5.3V, 45uA < Ir < 1mA 1 mV 1 Vr = 5.3V, 50uA < Ir < 1mA 1.5 mV 2, 3 Vr = 5.3V, 1mA < Ir < 20mA 10 mV 1 20 mV 2, 3 3 mV 1 6 mV 2, 3 Ir = 100uA Vr = 5.3V, Ir = 100uA Vr = 5.3V, Ir = 20mA Delta Vref/Delta Vo Reference Voltage Change with Current Reference Voltage Change with Output Voltage Vr = 5.3V, Ir = 100uA 4 UNIT SUBGROUPS MIN Ir = 20mA Delta Vref/Delta Ir PINNAME MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 Electrical Characteristics DC PARAMETERS(Continued) SYMBOL If Ic PARAMETER Feedback Current Minimum Operating Current CONDITIONS NOTES MIN MAX UNIT SUBGROUPS Ir = 9uA 20 nA 1 Ir = 10uA 25 nA 2, 3 Ir = 20mA 20 nA 1 25 nA 2, 3 Vr = 5.3V, Ir = 45uA 20 nA 1 Vr = 5.3V, Ir = 50uA 25 nA 2, 3 Vr = 5.3V, Ir = 20mA 20 nA 1 25 nA 2, 3 Vr = Vref Vr = 5.3V Note 1: PINNAME Functional Test. 5 1 9 uA 1 1 10 uA 2, 3 1 45 uA 1 1 50 uA 2, 3 MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 Graphics and Diagrams GRAPHICS# DESCRIPTION 05886HRB2 METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (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. (P/P DWG) P000188A METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (PIN OUT) P000366B LCC (E), 20 LEAD (PINOUT) See attached graphics following this page. 6 N N/C N/C GND- N/C N/C 3 2 1 20 19 18 N/C 5 17 N/C ADJ 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 20 - LEAD LCC CONNECTION DIAGRAM TOP VIEW P000366B N MIL/AEROSPACE OPERATIONS 2900 SEMICONDUCTOR DRIVE SANTA CLARA, CA 95050 MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 Revision History Rev ECN # Originator Changes 0A0 M0003059 02/25/03 Rel Date Rose Malone Archive RETS185BX, Rev. 0A. Update MDS: MNLM185B-X, Rev. 0AL to MNLM185B-X, Rev. 0A0, Fully Released MDS. Updated Discription, Features and Absolute section. Verified NSID. 0B0 M0004116 02/25/03 Rose Malone Update MDS: MCLM185B-X, Rev. 0A0 to MCLM185B-X, Rev. 0B0. Added ESD Level to Absolute Maximum Ratings Section. 7