INDUSTRIAL VOLTAGE AMPLIFIER IC

AM401

analog microelectronics

Mars 2006

Analog Microelectronics GmbH

Phone:

+49 (0)6131/91 073 – 0

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.3

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

Points to note: initial operation of AM401

ceramic capacitor) is must always connected. Care must be taken that the value of the

capacitance does not lie beyond its given range, even across the range of temperature (see

Boundary Conditions). The maximum current drawn from the reference must not exceed a value

2. All of the AM401 function blocks not used by the application (e.g. OP2) must be connected up

to a defined (and permitted) potential. Unused blocks, such as the additional operational

connected up in any event, even if the reference voltage source is not used.

3. When OP1 is in operation the load resistance at pin VOUT must be at least 2k

Ω.

permitted range specified in the boundary conditions on.

C

1

C

2

R

2

R

1

Ground

V

OUT

V

CC

1

2

3

4

14

13

5

6

11

15

12

V

BG

CVREF

CVSET

IN+

IN_

GND

ZA

OUTIA

INOP

7

8

GAIN

VOUT

VCC

VREF

VSET

Voltage Reference

AM401

+

_

OP2

+

_OP1

+

_ IA

Figure 3:

AM401 used as an industrial bridge amplifier