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参数资料
| 型号： | LM385BXZX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3 |
| 封装： | PLASTIC, TO-92, 3 PIN |
| 文件页数： | 1/14页 |
| 文件大小： | 724K |
| 代理商： | LM385BXZX |
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
相关PDF资料 |
PDF描述 |
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| 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 |
| LM4051CEM3-ADJ/NOPB | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.212 V, PDSO3 |
| LM4051BEM3X-1.2/NOPB | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM385BYH-1.2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| LM385BYH-2.5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| LM385BYM-1.2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM385BYM-1.2 NOPB | 制造商:National Semiconductor 功能描述:V-Ref Precision 1.235V 20mA 8-Pin SOIC Rail 制造商:National Semiconductor 功能描述:V-Ref Precision 1.235V 20mA 8-Pin SOIC N Rail |
| LM385BYM-1.2/NOPB | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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