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参数资料
| 型号： | LM385AXM-1.2 |
| 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, 1.235 V, PDSO8 |
| 封装： | SOP-8 |
| 文件页数： | 1/12页 |
| 文件大小： | 271K |
| 代理商： | LM385AXM-1.2 |
LM185-1.2/LM285-1.2/LM385-1.2
Micropower Voltage Reference Diode
General Description
The
LM185-1.2/LM285-1.2/LM385-1.2
are
micropower
2-terminal band-gap voltage regulator diodes. Operating
over a 10 A to 20 mA current range, they feature exception-
ally low dynamic impedance and good temperature stability.
On-chip trimming is used to provide tight voltage tolerance.
Since the LM185-1.2 band-gap reference uses only transis-
tors and resistors, low noise and good long term stability re-
sult.
Careful design of the LM185-1.2 has made the device ex-
ceptionally 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 LM185-1.2 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 LM185-1.2 is rated for operation over a 55C to 125C
temperature range while the LM285-1.2 is rated 40C to
85C and the LM385-1.2 0C to 70C. The LM185-1.2/
LM285-1.2 are available in a hermetic TO-46 package and
the LM285-1.2/LM385-1.2 are also available in a low-cost
TO-92 molded package, as well as SO and SOT-23. The
LM185-1.2 is also available in a hermetic leadless chip car-
rier package.
Features
n ±4mV(±0.3%) max. initial tolerance (A grade)
n Operating current of 10 A to 20 mA
n 0.6
max dynamic impedance (A grade)
n Low temperature coefficient
n Low voltage reference — 1.235V
n 2.5V device and adjustable device also available
n LM185-2.5 series and LM185 series, respectively
Connection Diagrams
T0-92
Plastic Package (Z)
DS005518-10
Bottom View
Order Number LM285Z-1.2,
LM285AZ-1.2, LM285AXZ-1.2,
LM285AYZ-1.2, LM285BXZ-1.2,
LM285BYZ-1.2, LM385Z-1.2,
LM385AZ-1.2, LM385AXZ-1.2,
LM385AYZ-1.2, LM385BZ-1.2,
LM385BXZ-1.2 or LM385BYZ-1.2
See NS Package Number Z03A
SOT23
DS005518-33
Order Number LM385M3-1.2
See NS Package Number MA03B
May 1999
LM185-1.2/LM285-1.2/LM385-1.2
Micropower
V
oltage
Reference
Diode
1999 National Semiconductor Corporation
DS005518
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LM385AZ-1.2 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PBCY3 |
| LM285AM-1.2 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PDSO8 |
| LM285AYZ-1.2 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.2 V, PBCY3 |
| LM385AXZ-1.2 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.2 V, PBCY3 |
| LM385AM-1.2 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.2 V, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM385AXM-2.5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM385AXMX-1.2 | 制造商:Texas Instruments 功能描述: |
| LM385AXMX-2.5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| LM385AXZ-1.2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM385AXZ-2.5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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