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參數(shù)資料
| 型號(hào)： | LM185-1.2 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Micropower Voltage References(1.2V基準(zhǔn)電壓源) |
| 中文描述： | 微功耗電壓參考（1.2V的基準(zhǔn)電壓源） |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | LM185-1.2 |
LM185-1.2, LM285-1.2, LM385-1.2, LM385B-1.2, LM385Y-1.2
MICROPOWER VOLTAGE REFERENCES
SLVS075B – APRIL 1989 – REVISED OCTOBER 1995
Copyright
1995, Texas Instruments Incorporated
2–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Current Range
– LM185 . . . 10
μ
A to 20 mA
– 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
– LM185 . . . 0.6
Max at 25
°
C
– 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
Designed to be Interchangeable With
National LM185-1.2, LM285-1.2, and
LM385-1.2
description
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 LM185-1.2 series band-gap reference has low noise and long-term stability.
The LM185-1.2 series design makes the 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 the LM185-1.2 series makes them useful for micropower circuitry. These
voltage references can be used to 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 LM185-1.2 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
LM285-1.2 is characterized for operation from –40
°
C to 85
°
C. The LM385-1.2 and LM385B-1.2 are
characterized for operation from 0
°
C to 70
°
C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
VZ
CHIP FORM
(Y)
TOLERANCE
SMALL OUTLINE
(D)
PLASTIC
(LP)
0
°
C to 70
°
C
2%
LM385D-1.2
LM385LP-1.2
LM385Y 1 2
LM385Y-1 2
LM385Y-1.2
1%
LM385BD-1.2
LM385BLP-1.2
–40
°
C to 85
°
C
–55
°
C to 125
°
C
For ordering purposes, the decimal point in the part number must be replaced with a hyphen (i.e., show
the -1.2 suffix as “-1-2”).
The D package is available taped and reeled. Add the suffix R to the device type (e.g., LM385DR-1-2).
The chip form is tested at TA = 25
°
C.
1%
LM285D-1.2
LM285LP-1.2
1%
LM185D-1.2
LM185LP-1.2
1
2
3
4
8
7
6
5
NC
NC
NC
ANODE
CATHODE
NC
NC
NC
D PACKAGE
(TOP VIEW)
NC–No internal connection
LP PACKAGE
(TOP VIEW)
ANODE
CATHODE
NC
symbol
ANODE
CATHODE
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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