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SADAD

更新时间： 2024-11-28 05:34:39

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数据手册

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SADAD 数据手册

LM134-LM234

LM334

THREE TERMINAL ADJUSTABLE CURRENT SOURCES

OPERATES from 1V to 40V

0.02% V CURRENT REGULATION

PROGRAMMABLE from 1µA to 10mA

±3% INITIAL ACCURACY

TO92

(Plastic Package)

DESCRIPTION

The LM134/LM234/LM334 are 3-terminal adjust-

able current sources characterized by :

- an operatingcurrent range of 10000 : 1

- an excellent current regulation

- a wide dynamic voltage range of 1V to 40V

The current is determined by an external resistor

without requiring other external components.

SO8

(Plastic Micropackage)

Reverse voltages of up to 20V will only draw a cur-

rent of several microamperes. This enables the

circuit tooperate asa rectifierandasa sourceofcur-

rent in a.c. applications.

ORDER CODES

For the LM134/LM234/LM334, the voltage on the

control pin is 64mV at +25^oC and is directly propor-

tionaltotheabsolutetemperature(^oK). The simplest

external resistor connection generates a current

with ≈ 0.33%/^oC temperature dependence. Zero

drift can be obtainedbyaddinganadditionalresistor

and a diode to the external circuit.

Package

Part Num-

ber

Temperature

Range

•

LM134

–55^oC, +125^oC

–25^oC, +100^oC

0^oC, +70^oC

LM234

•

LM334

•

Example : LM134Z

PIN CONNECTIONS

TO92

SO8

(Bottom view)

(Top view)

ADJ

October 1997

1/10

12 3 4 5 6 7...10

中文翻译

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