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參數(shù)資料
| 型號： | LM285BYH-1.2 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.2 V, MBCY2 |
| 封裝： | HERMETIC SEALED, METAL CAN, TO-46, 2 PIN |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 268K |
| 代理商： | LM285BYH-1.2 |
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,
LM285AYZ-1.2, LM285BXZ-1.2,
LM285BYZ-1.2, LM385Z-1.2,
LM385AXZ-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
December 1999
LM185-1.2/LM285-1.2/LM385-1.2
Micropower
V
oltage
Reference
Diode
1999 National Semiconductor Corporation
DS005518
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM285BYH-2.5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM285BYM | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)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 |
| LM285BYM | 制造商:Texas Instruments 功能描述:IC, VOLT REF, ADJ, MICROPWR, 8SOIC 制造商:Texas Instruments 功能描述:IC, VOLT REF, ADJ, MICROPWR, 8SOIC; Topology:Shunt, Adjustable; Voltage Reference Case Style:SOIC; No. of Pins:8; Temperature Coefficient:50ppm/C; Operating Temperature Range:-40C to +85C; SVHC:No SVHC (19-Dec-2012); Operating ;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:IC, VOLT REF, ADJ, MICROPWR, 8SOIC; Topology:Shunt, Adjustable; Voltage Reference Case Style:SOIC; No. of Pins:8; Temperature Coefficient:50ppm/C; SVHC:No SVHC (19-Dec-2012); Operating Temperature Max:85C; Operating Temperature ;RoHS Compliant: Yes |
| LM285BYM/NOPB | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)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 |
| LM285BYM-1.2 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)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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