8

Advanced Linear Devices

ALD2721E/ALD2721

0

1

2

3

4

5

6

78

9

10

500

400

300

200

100

0

TWO EXAMPLES OF EQUIVALENT INPUT OFFSET VOLTAGE DUE TO

CHANGE IN SUPPLY VOLTAGE vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

PSRR = 80 dB

EXAMPLE B:

PROGRAMMED

EXAMPLE A:

-5

-4

-3

-2

-1

0

1

23

45

COMMON MODE VOLTAGE (V)

500

400

300

200

100

0

EXAMPLE A:

EXAMPLE B:

PROGRAMMED

EXAMPLE C:

CMRR = 80dB

THREE EXAMPLES OF EQUIVALENT INPUT OFFSET VOLTAGE DUE TO

CHANGE IN COMMON MODE VOLTAGE vs. COMMON MODE VOLTAGE

-0.5

-0.4

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

0.4

0.5

COMMON MODE VOLTAGE (V)

50

40

30

20

10

0

PROGRAMMED

AT COMMON MODE

VOLTAGE OF 0.25V

CMRR = 80dB

EXAMPLE OF MINIMIZING EQUIVALENT INPUT OFFSET VOLTAGE

FOR A COMMON MODE VOLTAGE RANGE OF 0.5V

COMMON MODE VOLTAGE RANGE OF 0.5V