LM185BE

MICROCIRCUIT DATA SHEET MNLM185B-X REV 0B0 Original Creation Date: 08/15/95 Last Update Date: 02/25/03 Last Major Revision Date: 08/15/95 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 LM185B NS Part Numbers LM185BE/883 LM185BH/883 Prime Die LM185 Processing MIL-STD-883, Method 5004 Subgrp Description 1 2 3 4 5 6 7 8A 8B 9 10 11 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 Quality Conformance Inspection MIL-STD-883, Method 5005 1 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET 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 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET (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) ThetaJC E-Pkg H-Pkg Package Weight (Typical) E-Pkg H-Pkg ESD Tolerance (Note 2) 300 C 100 73 300 139 C/W C/W C/W C/W 25 C/W 57 C/W TBD TBD 500V Note 1: 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 Note 2: 3 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET Electrical Characteristics DC PARAMETERS SYMBOL Vref PARAMETER Reference Voltage Ir = 100uA CONDITIONS NOTES PINNAME MIN 1.228 1.215 Ir = 9uA Ir = 10uA Ir = 1mA 1.228 1.215 1.228 1.215 Ir = 20mA 1.228 1.215 Vr = 5.3V, Ir = 100uA 1.228 1.215 Vr = 5.3V, Ir = 45uA Vr = 5.3V, Ir = 50uA Vr = 5.3V, Ir = 1.0mA 1.288 1.215 1.288 1.215 Vr = 5.3V, Ir = 20mA 1.288 1.215 Delta Vref/Delta Ir Reference Voltage Change with Current 9uA < Ir < 1mA 10uA < Ir < 1mA 1mA < Ir < 20mA MAX 1.252 1.255 1.252 1.255 1.252 1.255 1.252 1.255 1.252 1.255 1.252 1.255 1.252 1.255 1.252 1.255 1 1.5 10 20 Vr = 5.3V, 45uA < Ir < 1mA Vr = 5.3V, 50uA < Ir < 1mA Vr = 5.3V, 1mA < Ir < 20mA 1 1.5 10 20 Delta Vref/Delta Vo Reference Voltage Change with Output Voltage Vr = 5.3V, Ir = 100uA 3 6 UNIT V V V V V V V V V V V V V V V V mV mV mV mV mV mV mV mV mV mV SUBGROUPS 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 4 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET Electrical Characteristics DC PARAMETERS(Continued) SYMBOL If PARAMETER Feedback Current Ir = 9uA Ir = 10uA Ir = 20mA CONDITIONS NOTES PINNAME MIN MAX 20 25 20 25 Vr = 5.3V, Ir = 45uA Vr = 5.3V, Ir = 50uA Vr = 5.3V, Ir = 20mA 20 25 20 25 Ic Minimum Operating Current Vr = Vref 1 1 Vr = 5.3V 1 1 Note 1: Functional Test. 9 10 45 50 UNIT nA nA nA nA nA nA nA nA uA uA uA uA SUBGROUPS 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 1 2, 3 5 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET Graphics and Diagrams GRAPHICS# 05886HRB2 06175HRB2 E20ARE H02ARE P000188A P000366B DESCRIPTION METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (B/I CKT) LCC (E), TYPE C, 20 TERMINAL (B/I CKT) LCC (E), TYPE C, 20 TERMINAL(P/P DWG) METAL CAN, TO-46,2LD, .100 DIA P.C. (P/P DWG) METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (PIN OUT) LCC (E), 20 LEAD (PINOUT) See attached graphics following this page. 6 
  
  
         N                N/C N/C GND- N/C N/C N/C N/C ADJ N/C N/C 4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 N/C N/C N/C N/C N/C 9 10 11 12 13 N/C N/C VREF+ N/C N/C LM185E 20 - LEAD LCC CONNECTION DIAGRAM TOP VIEW P000366B N MIL/AEROSPACE OPERATIONS 2900 SEMICONDUCTOR DRIVE SANTA CLARA, CA 95050 MNLM185B-X REV 0B0 MICROCIRCUIT DATA SHEET Revision History Rev 0A0 ECN # Rel Date Originator Rose Malone Changes 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. Update MDS: MCLM185B-X, Rev. 0A0 to MCLM185B-X, Rev. 0B0. Added ESD Level to Absolute Maximum Ratings Section. M0003059 02/25/03 0B0 M0004116 02/25/03 Rose Malone 7