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參數(shù)資料
| 型號(hào)： | LM185WG-1.2-MPR |
| 廠(chǎng)商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, CDSO10 |
| 封裝： | CERAMIC, SOIC-10 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 375K |
| 代理商： | LM185WG-1.2-MPR |
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LM185-1.2/LM285-1.2/LM385-1.2
Micropower Voltage Reference Diode
General Description
The
LM185-1.2/LM285-1.2/LM385-1.2
are
micropower
2-terminal band-gap voltage regulator diodes. Operating
over a 10 A to 20 mA current range, they feature exception-
ally low dynamic impedance and good temperature stability.
On-chip trimming is used to provide tight voltage tolerance.
Since the LM185-1.2 band-gap reference uses only transis-
tors and resistors, low noise and good long term stability re-
sult.
Careful design of the LM185-1.2 has made the device ex-
ceptionally 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 LM185-1.2 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.
The LM185-1.2 is rated for operation over a 55C to 125C
temperature range while the LM285-1.2 is rated 40C to
85C and the LM385-1.2 0C to 70C. The LM185-1.2/
LM285-1.2 are available in a hermetic TO-46 package and
the LM285-1.2/LM385-1.2 are also available in a low-cost
TO-92 molded package, as well as SO and SOT-23. The
LM185-1.2 is also available in a hermetic leadless chip car-
rier package.
Features
n ±
4mV(±0.3%) max. initial tolerance (A grade)
n
Operating current of 10 A to 20 mA
n
0.6
max dynamic impedance (A grade)
n
Low temperature coefficient
n
Low voltage reference — 1.235V
n
2.5V device and adjustable device also available
n
LM185-2.5 series and LM185 series, respectively
Connection Diagrams
T0-92
Plastic Package (Z)
DS005518-10
Bottom View
Order Number LM285Z-1.2,
LM285BXZ-1.2, LM285BYZ-1.2
LM385Z-1.2, LM385BZ-1.2
LM385BXZ-1.2 or LM385BYZ-1.2
See NS Package Number Z03A
SOT23
DS005518-33
* Pin 3 is attached to the Die Attach Pad (DAP) and should be connected
to Pin 2 or left floating.
Order Number LM385M3-1.2
See NS Package Number MA03B
January 2000
LM185-1.2/LM285-1.2/LM385-1.2
Micropower
V
oltage
Reference
Diode
2000 National Semiconductor Corporation
DS005518
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM385-1.2MDC | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, UUC |
| LM185-1.2MW8 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, UUC |
| LM21215MHX | 23.5 A SWITCHING REGULATOR, 525 kHz SWITCHING FREQ-MAX, PDSO20 |
| LM22670QMRE-ADJ | 5.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM22670QMR-5.0 | 5.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM185WG-2.5/883 | 制造商:Texas Instruments 功能描述:V-REF PRECISION 2.5V 20MA 10PIN CPAK - Rail/Tube |
| LM185WG-2.5-QV | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LM185-2.5QML Micropower Voltage Reference Diode |
| LM1863 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:AM Radio System for Electronically Tuned Radios |
| LM1863M | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:AM Radio System for Electronically Tuned Radios |
| LM1863N/A+ | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:AM Receiver Circuit |
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