LM385B-2.5 Datasheet, PDF (1/14 Pages) Texas Instruments – MICROPOWER VOLTAGE REFERENCES

LM285Ć2.5, LM385Ć2.5, LM385BĆ2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023I − JANUARY 1989 − REVISED FEBRUARY 2005
D Operating Current Range . . . 20 µA to
20 mA
D 1.5% and 3% Initial Voltage Tolerance
D Reference Impedance
− LM385 . . . 1 Ω Max at 25°C
− All Devices . . . 1.5 Ω Max Over Full
Temperature Range
D Very Low Power Consumption
D Applications
− Portable Meter References
− Portable Test Instruments
− Battery-Operated Systems
− Current-Loop Instrumentation
− Panel Meters
D Interchangeable With Industry-Standard
LM285-2.5 and LM385-2.5
description/ordering information
LM285-2.5 . . . D PACKAGE
LM385-2.5, LM385B-2.5 . . . D OR PW PACKAGE
(TOP VIEW)
NC 1
NC 2
NC 3
ANODE 4
8 CATHODE
7 NC
6 NC
5 NC
NC − No internal connection
LM285-2.5, LM385-2.5, LM385B-2.5 . . . LP PACKAGE
(TOP VIEW)
ANODE
CATHODE
NC
NC − No internal connection
These micropower two-terminal band-gap voltage references operate over a 20-µA to 20-mA current range and
feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides tight
voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.
ORDERING INFORMATION
TA
VZ
TOLERANCE
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC (D)
Tube of 75
Reel of 2000
LM385D-2-5
LM385DR-2-5
385-25
Tube of 1000 LM385LP-2-5
3%
TO226/TO-92 (LP)
Reel of 2000 LM385LPR-2-5
385-25
0°C to 70°C
TSSOP (PW)
SOIC (D)
Tube of 150
Reel of 2000
Tube of 75
Reel of 2000
LM385PW-2-5
LM385PWR-2-5
LM385BD-2-5
LM385BDR-2-5
385-25
385B25
1.5%
TO226/TO-92 (LP)
Tube of 1000
Reel of 2000
LM385BLP-2-5
LM385BLPR-2-5
385-25
TSSOP (PW)
Tube of 150
Reel of 2000
LM385BPW-2-5
LM385BPWR-2-5
385B25
−40°C to 85°C
1.5%
SOIC (D)
TO226/TO-92 (LP)
Tube of 75
Reel of 2000
Tube of 1000
Reel of 2000
LM285D-2-5
LM285DR-2-5
LM285LP-2-5
LM285LPR-2-5
285-25
285-25
285-25
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at}
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2005, Texas Instruments Incorporated
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