LM385-ADJ (正在供货)

可调节微功耗电压基准

可调节微功耗电压基准 - LM385-ADJ
数据表
 

备选器件推荐

  • LM4051-N  -  Improved Initial Accuracy And Temperature Coefficient
  • LM285-ADJ  -  -40 to 85 °C Extended temperature range
  • LM185-ADJ  -  -55 to 125°C Extended temperature range

描述

The LM185/LM285/LM385 are micropower 3-terminal adjustable 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 temperature 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. 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 temperature 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 package and a LCCC package, while the LM285/LM385 are available in a low-cost TO-92 package, as well as SOIC.

特性

  • Adjustable from 1.24V to 5.30V
  • Operating Current of 10μA to 20mA
  • 1% and 2% Initial Tolerance
  • 1Ω Dynamic Impedance
  • Low Temperature Coefficient

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参数 与其它产品相比 并联电压基准

 
Reference Voltage
VO (V)
VO Adj (Min) (V)
VO Adj (Max) (V)
Initial Accuracy (Max) (%)
Temp Coeff (Max) (ppm/ degree C)
Rating
Operating Temperature Range (C)
Min Iz for Regulation (uA)
Iout/Iz (Max) (mA)
Package Group
LM385-ADJ LM4030 LM4041-N
Adjustable    Fixed    Adjustable
Fixed   
1.24    2.5
4.096   
1.225   
1.24    2.5    1.24   
5.3    4.096    10   
1
2   
0.05
0.1
0.15   
0.1
0.2
0.5
1
2   
150    10
20
30   
100
150   
Catalog    Catalog    Catalog   
0 to 70    -40 to 125    -40 to 125
-40 to 85   
10    120    60   
20    30    12   
SOIC
TO-92   
SOT-23    SC70
SOT-23
TO-92   
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WEBENCH® Designer LM385-ADJ

  最小   最大 范围
输入电压  V 1.24 to 5.3V
输出电压  V 1.24 to 5.3V
输出电流  A ≤ 0.02A
环境温度  °C 0 to 70°C


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