AM422 datasheet(1/10 Pages) AME

部品番号	AM422

部品情報	VOLTAGE/CURRENT CONVERTER

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メーカー	AME [Analog Microelectronics]

ホームページ	http://www.ame.com.tw/

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VOLTAGE/CURRENT CONVERTER

AM422

analog microelectronics

April 99

Analog Microelectronics GmbH

Phone:

+49 (0)6131/91 073 – 0

1/10

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.1

Internet: www.analogmicro.de

E–Mail:

info@analogmicro.de

FEATURES

• Wide Supply Voltage Range: 6...35V

• Wide Operating Temperature Range:

–40°C...+85°C

• Adjustable Voltage Reference:

4.5 to 10V

• Operational Amplifier Input:

0.5...4.5V, 0...5V, other

• Adjustable Offset Current

• Available as Three– (0/4...20mA) or

Two–Wire Version (4...20mA)

• Adjustable Output Current Range

• Protection Against Reverse Polarity

• Protected Current Output

APPLICATIONS

• Sensor Interface

• Industrial Process Control

• Programmable Current Source

• Current Source Reference

GENERAL DESCRIPTION

The AM422 is a low cost monolithic voltage–

to–current converter specially designed for

analog signal transmission. The AM422 is

available in a 3– or 2–wire version, which al-

lows applications with flexible input voltage

ranges to be used for a standard output current.

Output current range and current offset level

are freely adjustable by external resistors. The

IC consists of three basic sections: an opera-

tional amplifier input stage for single ended

input signals (0.5–4.5V, 0–10V, or other), a

programmable 4.5 to 10V reference for trans-

ducer excitation, and a current output, freely

adjustable in a wide current range (4–20mA,

0–20mA, other). With the broad spectrum of

possible input signals the AM422 is a flexible

and multipurpose voltage–to–current converter

for single ended transducers or voltage trans-

mission.

DELIVERY

• DIL8 packages (samples)

• SOP8 packages

• Dice on 5“ blue foil

BLOCK DIAGRAM

VIN

OUT

RS

SET

VCC

2

1

3

4

7

GND

AM422

Input

Amplifier

5

G = 1

VREF

2

V

I

VREF

VSET

6

8

Reference Voltage

Figure 1

同様の部品番号 - AM422

メーカー	部品番号	データシート	部品情報
Analog Microelectronics...	AM422	123Kb / 10P	VOLTAGE/CURRENT CONVERTER Rev. 2.1
WOLFSPEED, INC.	AM4221	123Kb / 10P	VOLTAGE/CURRENT CONVERTER April 99 Rev. 2.1
WOLFSPEED, INC.	AM4222	123Kb / 10P	VOLTAGE/CURRENT CONVERTER April 99 Rev. 2.1

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