Industrial Converter and Protector IC

AM460

analog microelectronics

April 2003

13/18

Example 3:

0...10V.

Using Equation 14 the output voltage is defined as follows:

2

.

2

1

2

1

⋅













+

⋅

=

R

R

V

V

INP

OUT

⇒

55

.

3

1

V

1

2

.

2

V

10

1

2

.

2

2

1

≈

−

⋅

=

−

⋅

=

INP

OUT

V

V

R

R

i.e.

55

.

4

1

2

1

=

+

=

R

R

G

GAIN

The following then applies to the output current:

0

0

8

8

R

G

V

I

R

G

V

I

GAIN

INP

SET

I

INP

OUT

⋅

=

+

⋅

=

⇒

Ω

≈

⋅

=

⋅

=

44

.

28

mA

20

8

55

.

4

V

1

8

0

OUT

GAIN

INP

I

G

V

R

Observing the boundary conditions, the following values are obtained for the external components:

Ground

R

5

R

L

1

Single-ended

input voltage

Connections setting unused function blocks to a defined operating point

I

V

BG

1

2

AM460

OP3

OP2

R

1

R

2

4

OP1

5

3

C

1

Voltage Reference

R

0

714

6

13

15

16

12

11

8

9

10

V

I

T

1

D

1

3-wire connection

V

INP

V

S

V

OUT

I

OUT

Figure 7: Typical application for input signals referenced to ground