Industrial V/I Converter and Protector IC

AM462

analog microelectronics

December2006

Analog Microelectronics GmbH

Phone: +49 (0)6131/91 073 - 0

7/20

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.4

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

SET

INDAI

OUT

I

R

V

I

+

=

0

8

with

0

2R

V

I

SET

(2)

3. The AM462 reference voltage source enables voltage to be supplied to external components

Values between the above can be set if two external resistors are used (inserted between pin

VREF and pin VSET and between pin VSET and GND; see Figure 2).

connected even if the voltage reference is not in use.

4. The additional operational amplifier stage OP2 can be used as a current or voltage source to

the output current or output voltage can be set across a wide range using one or two external

resistors.

amplification

used are compensated for internally by the V/I converter.

V

BG

Ground

V

S

I

OUT

R

1

R

2

R

0

T

1

D

1

R

5

V

INP

V

SET

V

OUTAD

V

CVREF

V

CVSET

R

4

V

BG

4

11

10

8

OP1

5

2

AM462

OP2

3

C

1

V

REF

R

3

13

15

Voltage Reference

1

16

9

V

INDAI

14

V

I

6

Figure 2: Block diagram of AM462 with external components (3-wire circuit for current output)