ad626 Analog Devices, Inc., ad626 Datasheet - Page 6

• Manufacturer Part Number: ad626
• Description: Low Cost, Single Supply Differential Amplifier
• Manufacturer: Analog Devices, Inc.

AD626
TPC 9. Common-Mode Rejection vs. Input Common-
Mode Voltage for Single-Supply Operation
TPC 8. Common-Mode Rejection vs. Frequency
1000
100
140
120
100
100
95
90
85
80
75
70
65
10
80
60
40
20
0
0
–5
0.1
10
TPC 7. Closed-Loop Gain vs. Frequency
1
0
GAIN = 100
GAIN = 10
100
V
INPUT COMMON-MODE VOLTAGE – V
S
G = 10, 100
= +5
10
5
FREQUENCY – Hz
FREQUENCY – Hz
1k
SINGLE SUPPLY
100
V
DUAL SUPPLY
S
10
=
V
5V
S
1k
10k
= +5V
15
10k
V
DUAL SUPPLY
S
100k
=
G = 10, 100
V
S
G = 10
V
20
100k
5V
= +5
S
G = 100
V
=
S
=
5
5
1M
25
1M
–6–
TPC 10. Common-Mode Rejection vs. Input
Common- Mode Voltage for Dual-Supply Operation
TPC 11. Common-Mode Rejection vs. Input Source
Resistance Mismatch
100
100
90
80
70
60
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
TPC 12. Additional Gain Error vs. Source
Resistance Mismatch
95
90
85
80
75
70
65
20
0
10
TOTAL GAIN ERROR =
CURVE APPLIES TO
ALL SUPPLY VOLTAGES
AND GAINS BETWEEN 10 AND 100
GAIN ACCURACY (FROM SPEC TABLE)
+ ADDITIONAL GAIN ERROR
INPUT SOURCE RESISTANCE MISMATCH –
22
SOURCE RESISTANCE MISMATCH –
INPUT COMMON-MODE VOLTAGE – V
V
20
S
=
5
24
G = 10, 100
40
100
26
60
28
30
80
1k
REV. D