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參數資料
| 型號： | LM285BXZX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁數： | 1/14頁 |
| 文件大小： | 724K |
| 代理商： | LM285BXZX |
January 30, 2008
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 10
μA 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 refer-
ence 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 ana-
log 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 is rated for operation over a 55°C to 125°C tem-
perature range, while the LM285 is rated 40°C to 85°C and
the LM385 0°C to 70°C. The LM185 is available in a hermetic
TO-46 package and a leadless chip carrier package, while the
LM285/LM385 are available in a low-cost TO-92 molded
package, as well as S.O.
Features
■ Adjustable from 1.24V to 5.30V
■ Operating current of 10μA to 20mA
■ 1% and 2% initial tolerance
■ 1Ω dynamic impedance
■ Low temperature coefficient
Connection Diagrams
TO-92
Plastic Package
525009
Bottom View
TO-46
Metal Can Package
525001
Bottom View
SOIC Package
525010
Top View
20-Leadless Chip Carrier
525015
Top View
2008 National Semiconductor Corporation
5250
www.national.com
LM185/LM285/LM385
Adjustable
Micropower
Voltage
Reference
相關PDF資料 |
PDF描述 |
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| LM385BYZX | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3 |
| LM385BXZX | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3 |
| LM4041CIM3-1.2Y | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3 |
| LM4050CEM3-5.0/V+T | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PDSO3 |
| LM4050BEM3-4.1/V+T | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096 V, PDSO3 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM285BYH-2.5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM285BYM | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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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