SLVS075H APRIL 1989 REVISED FEBRUARY 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Current Range
LM285 . . . 10
μ
A to 20 mA
LM385 . . . 15
μ
A to 20 mA
LM385B . . . 15
μ
A to 20 mA
1% and 2% Initial Voltage Tolerance
Reference Impedance
LM385 . . . 1
Max at 25
°
C
All Devices . . . 1.5
Max Over Full
Temperature Range
Very Low Power Consumption
Applications
Portable Meter References
Portable Test Instruments
Battery-Operated Systems
Current-Loop Instrumentation
Panel Meters
Interchangeable With Industry Standard
LM285-1.2 and LM385-1.2
description/ordering information
These micropower, two-terminal, band-gap voltage references operate over a 10-
μ
A 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
LM385D-1-2
385-12
Reel of 2000
LM385DR-1-2
SOP (PS)
Reel of 2000
LM385PSR-1-2
L385-12
2%
TO-226 / TO-92 (LP)
Tube of 1000
LM385LP-1-2
385-12
Reel of 2000
LM385LPR-1-2
TSSOP (PW)
Tube of 150
LM385PW-1-2
385-12
0 C to 70 C
Reel of 2000
LM385PWR-1-2
SOIC (D)
Tube of 75
LM385BD-1-2
385B12
Reel of 2000
LM385BDR-1-2
1%
TO-226 / TO-92 (LP)
Tube of 1000
LM385BLP-1-2
385-12
Reel of 2000
LM385BLPR-1-2
TSSOP (PW)
Tube of 150
LM385BPW-1-2
385B12
Reel of 2000
LM385BPWR-1-2
SOIC (D)
Tube of 75
LM285D-1-2
285-12
40 C to 85 C
1%
Reel of 2000
Tube of 1000
LM285DR-1-2
LM285LP-1-2
TO-226 / TO-92 (LP)
285-12
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available
at www.ti.com/sc/package.
Copyright
2005, Texas Instruments Incorporated
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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.
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8
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NC
NC
NC
ANODE
CATHODE
NC
NC
NC
LM285-1.2 . . . D PACKAGE
LM385-1.2 . . . D, PS, OR PW PACKAGE
LM385B-1.2 . . . D OR PW PACKAGE
(TOP VIEW)
NC No internal connection
LM285-1.2, LM385-1.2, LM385B-1.2 . . . LP PACKAGE
(TOP VIEW)
NC No internal connection
NC
CATHODE
ANODE