LM185BYH Datasheet PDF - National Semiconductor
| Part Number | LM185BYH | |
| Description | Adjustable Micropower Voltage References | |
| Manufacturers | National Semiconductor | |
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February 2005
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 10µA 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
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. Fur-
ther, 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-46 package and a leadless chip carrier pack-
age, while the LM285/LM385 are available in a low-cost
TO-92 molded package, as well as S.O.
Features
n Adjustable from 1.24V to 5.30V
n Operating current of 10µA to 20mA
n 1% and 2% initial tolerance
n 1Ω dynamic impedance
n Low temperature coefficient
Connection Diagrams
TO-92
Plastic Package
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TO-46
Metal Can Package
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00525009
Bottom View
SOIC Package
00525001
Bottom View
20-Leadless Chip Carrier
00525010
Top View
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© 2005 National Semiconductor Corporation
DS005250
Top View
00525015
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Typical Performance Characteristics
Temperature Drift of 3
Representative Units
Feedback Current
00525016
Minimum Operating Current
00525017
Reverse Characteristics
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00525018
Reverse Characteristics
00525019
Forward Characteristics
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5
00525021
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LM185BYH electronic component. |
| Information | Total 14 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LM185BYH.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| LM185BYH | The function is Adjustable Micropower Voltage References. National Semiconductor | |
| LM185BYH-1.2 | The function is Micropower Voltage Reference Diode. National Semiconductor | |
| LM185BYH-2.5 | The function is Micropower Voltage Reference Diode. National Semiconductor | |
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