AD628
TEST CIRCUITS
HP3589A
SPECTRUM ANALYZER
+V
S
7
–IN
10kΩ
10kΩ
–
8
+IN
–IN
100kΩ
FET
PROBE
5
AD829
+
OUT
–IN
G = +0.1
+IN
+IN
1
G = +100
100kΩ
AD628
10kΩ
C
R
FILT
V
G
REF
3
2
4
6
–V
S
–
OP177
+
Figure 25. CMRR vs. Frequency
SCOPE
+V
S
7
1 VAC
+15V
G = +100
G = +100
+IN
10kΩ
10kΩ
–IN
8
1
+
OUT
20Ω
100kΩ
5
AD829
–
–IN
–IN
G = +0.1
+IN
+IN
100kΩ
AD628
10kΩ
3
2
4
FILT
6
V
C
R
G
REF
–V
S
Figure 26. PSRR vs. Frequency
Rev. G | Page 13 of 20