AD8426
2.5
2.5
+0.01V, +1.90V
输入共模电压（ V）
输入共模电压（ V）
2.0
1.5
+0.01V, +1.28V
+1.35V, +1.95V
V
REF
= +1.35V
+0.01V, +1.90V
2.0
+1.35V, +1.94V
V
REF
= +1.35V
+2.61V, +1.13V
1.5
+0.01V, +1.19V
+2.60V, +1.11V
1.0
+2.17V, +0.90V
1.0
V
REF
= 0V
0.5
0
+0.01V, +0.05V
+2.61V, +0.08V
+2.46V, +0.72V
V
REF
= 0V
0.5
+0.01V, +0.31V
+2.61V, +0.37V
0
–0.5
–1.0
–0.5
0.00V, –0.45V
+1.35V, –0.41V
–0.5
–1.0
–0.5
+0.01V, –0.40V
+1.35V, –0.55V
09490-103
0
0.5
2.0
1.0
1.5
输出电压（V）
2.5
3.0
0
0.5
2.0
1.0
1.5
输出电压（V）
2.5
3.0
图9.输入共模电压与输出电压，
单电源供电，V
S
= 2.7 V ，G = 1
图12.输入共模电压与输出电压，
单电源供电，V
S
= 2.7 V ，G = 100
5
+0.02V, +4.25V
+2.50V, +4.25V
5
+0.02V, +4.20V
+2.49V, +4.25V
V
REF
= +2.50V
输入共模电压（ V）
4
V
REF
= +2.5V
+4.90V, +3.03V
输入共模电压（ V）
4
+4.90V, +3.02V
3
+0.02V, +2.95V
3
+0.02V, +2.89V
V
REF
= 0V
2
+4.64V, +2.03V
2
V
REF
= 0V
+4.77V, +1.71V
1
+0.01V, +0.87V
+4.90V, +0.82V
1
+0.01V, +0.69V
0
+0.01V, –0.30V
+2.50V, –0.40V
09490-104
0
+0.01V, –0.40V
+2.49V, –0.30V
+4.90V, +0.54V
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
输出电压（V）
0
0.5
1.0
1.5
2.0 2.5 3.0 3.5 4.0
输出电压（V）
4.5
5.0
5.5
图10.输入共模电压与输出电压，
单电源供电，V
S
= 5 V ，G = 1
图13.输入共模电压与输出电压，
单电源供电，V
S
= 5 V ，G = 100
6
0V, +4.25V
6
0V, +4.24V
4
输入共模电压（ V）
输入共模电压（ V）
4
2
–4.93V, +1.77V
+4.87V, +1.79V
2
–4.93V, +1.74V
+4.90V, +1.76V
0
0
–2
–4.93V, –2.83V
+4.90V, –2.84V
–2
–4.93V, –3.15V
+4.90V, –3.18V
–4
0V, –5.30V
–4
–0.01V, –5.30V
09490-105
–4
–2
0
2
输出电压（V）
4
6
–6
–4
–2
0
2
输出电压（V）
4
6
图11.输入共模电压与输出电压，
双电源，V
S
= ± 5 V ，G = 1
图14.输入共模电压与输出电压，
双电源，V
S
= ± 5 V ， G = 100
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–6
–6
–6
09490-107
–1
–0.5
–1
–0.5
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