Analog Devices AD604 , Figure 34. Input Bias Current vs. Temperature , Figure 33. Input Impedance vs. Frequency , Figure 35. Supply Current (One Channel) vs. Temperature , Figure 36. Group Delay vs. Frequency

AD604
Rev. E | Page 12 of 32
FREQUENCY(Hz)
1M
1k
1
100k
10k
100
10
1k 10k 100k 1M 10M 100M
INPUT IMPEDANCE (Ω)
00540-033
25.8
Figure 33. Input Impedance vs. Frequency
27.6
27.2
26.8
26.6
26.2
26.4
27.0
27.4
26.0
TEMPERATURE(° C)
–40–2002040608090
00540-034
SUPPLY CURRENT (mA)
40
20
0
35
30
25
15
10
5
INPUT BIAS CURRENT (µA)
Figure 34. Input Bias Current vs. Temperature
PREAMP(±I
S
)
AD604(+I
S
)
DSX(+I
S
)
+I
S
(VGN= 0)
+I
S
(AD604)= +I
S
(PA)+ +I
S
(DSX)
–I
S
(AD604)= –I
S
(PA)
TEMPERATURE(° C)
–40 –20 0 20 40 60 80 90
00540-035
Figure 35. Supply Current (One Channel) vs. Temperature
FREQUENCY(Hz)
20
14
8
10
12
16
18
6
DELAY (ns)
VGN= 0.1V
VGN= 2.9V
100k 1M 10M 100M
00540-036
Figure 36. Group Delay vs. Frequency