鈥?All Devices . . . 1.5
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Max Over Full
Temperature Range
Very Low Power Consumption
Applications:
鈥?Portable Meter References
鈥?Portable Test Instruments
鈥?Battery-Operated Systems
鈥?Current-Loop Instrumentation
鈥?Panel Meters
Designed to be Interchangeable With
National LM285-2.5 and LM385-2.5
D PACKAGE
(TOP VIEW)
NC
NC
NC
ANODE
1
2
3
4
8
7
6
5
CATHODE
NC
NC
NC
LP PACKAGE
(TOP VIEW)
ANODE
CATHODE
NC
NC鈥揘o internal connection
description
These micropower two-terminal band-gap voltage references operate over a 20-碌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.
The design makes these devices exceptionally tolerant of capacitive loading and thus, easier to use in most
reference applications. The wide dynamic operating temperature range accommodates varying current
supplies with excellent regulation.
The extremely low power drain of this series makes them useful for micropower circuitry. These voltage
references can make portable meters, regulators, or general-purpose analog circuitry with battery life
approaching shelf life. The wide operating current range allows them to replace older references with
tighter-tolerance parts.
The LM285-2.5 is characterized for operation from 鈥?0擄C to 85擄C. The LM385-2.5 and LM385B-2.5 are
characterized for operation from 0擄C to 70擄C.
AVAILABLE OPTIONS
TA
VZ
TOLERANCE
3%
1.5%
1.5%
PACKAGED DEVICES
SMALL OUTLINE
(D)
LM385D-2.5
LM385BD-2.5
LM285D-2.5
PLASTIC
(LP)
LM385LP-2.5
LM385BLP-2.5
LM285LP-2.5
LM385Y-2.5
CHIP FORM
(Y)
0擄C to 70擄C
鈥?0擄C to 85擄C
The D package is available taped and reeled. Add the suffix R to the device type (e.g., LM385DR-2-5). Chip
forms are tested at 25擄C.
For ordering purposes, the decimal point in the part number must be replaced with a hyphen (i.e., show
the -2.5 suffix as 鈥?2-5鈥?.
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.
Copyright
漏
1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
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DALLAS, TEXAS 75265
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