LM385BM-1.2 National Semiconductor, LM385BM-1.2 Datasheet
![Voltage Reference](/photos/18/97/189768/3778330_sml.jpg)
LM385BM-1.2
Manufacturer Part Number
LM385BM-1.2
Description
Voltage Reference
Manufacturer
National Semiconductor
Specifications of LM385BM-1.2
Peak Reflow Compatible (260 C)
No
Current Rating
10A
Leaded Process Compatible
No
Mounting Type
Surface Mount
Supply Current
10mA
Package / Case
8-NSOIC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM385BM-1.2
Manufacturer:
NS
Quantity:
213
Part Number:
LM385BM-1.2
Manufacturer:
NS/国半
Quantity:
20 000
© 2000 National Semiconductor Corporation
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 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 refer-
ences with a tighter tolerance part.
Connection Diagrams
Metal Can Package
Plastic Package
Bottom View
Bottom View
TO-92
TO-46
DS005250-9
DS005250-1
DS005250
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
n Adjustable from 1.24V to 5.30V
n Operating current of 10µA to 20mA
n 1% and 2% initial tolerance
n 1
n Low temperature coefficient
dynamic impedance
20-Leadless Chip Carrier
SOIC Package
Top View
Top View
DS005250-10
DS005250-15
February 2000
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