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LM385BYZ

更新时间： 2024-11-23 12:09:47
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LM185/LM285/LM385 Adjustable Micropower Voltage References

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LM385BYZ 数据手册

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LM185-ADJ, LM285-ADJ, LM385-ADJ  
www.ti.com  
SNVS741F –FEBRUARY 2000–REVISED APRIL 2013  
LM185/LM285/LM385 Adjustable Micropower Voltage References  
Check for Samples: LM185-ADJ, LM285-ADJ, LM385-ADJ  
Careful design of the LM185 has made the device  
1
FEATURES  
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.  
2
•
•
•
•
•
Adjustable from 1.24V to 5.30V  
Operating Current of 10μA to 20mA  
1% and 2% Initial Tolerance  
1Ω Dynamic Impedance  
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.  
Low Temperature Coefficient  
DESCRIPTION  
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.  
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.  
Connection Diagram  
Figure 1. TO-92 Package  
Bottom View  
Figure 2. TO Package  
Bottom View  
Figure 3. SOIC Package  
Top View  
Figure 4. 20-LCCC  
Top View  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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LM385BYZ 替代型号

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