Datasheet

Data Sheet AD8420
Rev. 0 | Page 11 of 28
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
1.4 3.23.02.82.62.42.22.01.81.6
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
V
REF
= 2.5V
R
L
= 10k TO MIDSUPPLY
+2.5V, –0.1V
+3.03V, +0.16V
+3.03V, +2.46V
+2.5V, +2.8V
+1.5V, +0.4V
+1.5V, +2.3V
09945-315
Figure 15. Input Common-Mode Voltage vs. Output Voltage,
G = 1, V
S
= 5 V, V
REF
= 2.5 V
0.6
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.1 0.70.60.50.40.30.20.10
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
+4mV, +0.5V
+4mV, –0.1V
+0.6V, +0.2V
09945-316
Figure 16. Input Common-Mode Voltage vs. Output Voltage, G = 1, V
S
= 2.7 V
20
15
10
5
0
–5
–10
–15
–20
–20 20151050–5–10–15
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
–14.9V, +12.7V
–14.9V, –15.0V
0.0V, –15.1V
0.0V, +12.8V
+14.8V, +12.7V
+14.8V, –15.0V
09945-317
Figure 17. Input Common-Mode Voltage vs. Output Voltage,
G = 100, V
S
= ±15 V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–0.5 5.55.04.53.52.5 4.03.02.01.51.000.5
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
+44mV, +2.8V
+44mV, –0.1V
+4.8V, +2.78V
+4.8V, –80mV
09945-318
Figure 18. Input Common-Mode Voltage vs. Output Voltage,
G = 100, V
S
= 5 V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–0.5 5.55.04.53.52.5 4.03.02.01.51.000.5
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
+86mV, +2.79V
+86mV, –90mV
+2.5V, +2.8V
+2.5V, –0.1V
+4.8V, +2.79V
+4.8V, –90mV
09945-319
Figure 19. Input Common-Mode Voltage vs. Output Voltage,
G = 100, V
S
= 5 V, V
REF
= 2.5 V
0.6
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.5 3.02.52.01.51.000.5
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
+29mV, +0.5V
+29mV, –0.1V
+2.53V, +0.49V
+2.53V, –90mV
09945-320
Figure 20. Input Common-Mode Voltage vs. Output Voltage,
G = 100, V
S
= 2.7 V