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| 型號： | LM185-ADJ |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 747K |
| 代理商： | LM185-ADJ |
LM185/LM285/LM385
Adjustable Micropower Voltage References
General Description
The LM185/LM285/LM385 are micropower 3-terminal ad-
justable band-gap voltage reference diodes. Operating from
1.24 to 5.3V and over a 10μA to 20mA current range, they
feature exceptionally low dynamic impedance and good tem-
perature stability. On-chip trimming is used to provide tight
voltage tolerance. Since the LM185 band-gap reference
uses only transistors and resistors, low noise and good
long-term stability result.
Careful design of the LM185 has made the device 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 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. Fur-
ther, the wide operating current allows it to replace older
references with a tighter tolerance part.
The LM185 is rated for operation over a 55C to 125C
temperature range, while the LM285 is rated 40C to 85C
and the LM385 0C to 70C. The LM185 is available in a
hermetic TO-46 package and a leadless chip carrier pack-
age, while the LM285/LM385 are available in a low-cost
TO-92 molded package, as well as S.O.
Features
n
Adjustable from 1.24V to 5.30V
n
Operating current of 10μA to 20mA
n
1% and 2% initial tolerance
n
1
dynamic impedance
n
Low temperature coefficient
Connection Diagrams
TO-92
Plastic Package
TO-46
Metal Can Package
00525009
Bottom View
00525001
Bottom View
SOIC Package
20-Leadless Chip Carrier
00525010
Top View
00525015
Top View
February 2005
L
2005 National Semiconductor Corporation
DS005250
www.national.com
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| LM1851AN | Ground Fault Interrupter |
| LM385BYH-2.5 | Voltage Reference |
| LM185LDB-2.5 | Voltage Reference |
| LM185D2.5 | Voltage Reference |
| LM185D-1.2 | Voltage Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM185B | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:MICROCIRCUIT DATA SHEET |
| LM185BE | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:MICROCIRCUIT DATA SHEET |
| LM185BE/883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Adjustable Micropower Voltage References |
| LM185BE883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:MICROCIRCUIT DATA SHEET |
| LM185BH | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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