
AD8641/AD8642/AD8643
Data Sheet
Rev. E | Page 10 of 16
–60
–40
–20
0
20
40
60
80
100
120
140
1k
10k
100k
1M
10M
FREQUENCY (Hz)
P
S
RR
(dB)
05072-026
VSY =5V
+PSRR
–PSRR
Figure 31. PSRR vs. Frequency
0.01
0.1
1
10
100
1000
Z
OUT
(
Ω
)
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
05072-027
G = +100
G = +10
G = +1
VSY = ±13V
Figure 32. Output Impedance vs. Frequency
0.01
0.1
1
10
100
1000
Z
OUT
(
Ω
)
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
05072-028
G = +100
G = +10
G = +1
VSY =5V
Figure 33. Output Impedance vs. Frequency
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
INP
U
T
BIAS
(pA)
–5
–4
–3
–2
–1
0
1
2
3
4
5
VCM (V)
05072-009
05072-029
CH1 10.0V
CH2 10.0V
M400
μs
A CH1
1.00V
1
T
0.00000s
2
VIN
VOUT
T
VSY = ±13V
Figure 34. No Phase Reversal
–15
–10
–5
0
5
10
15
OUTPUT
SW
ING
(
V
)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
SETTLING TIME (
μs)
05072-030
VS = ±13V
GAIN = +5
TS – (0.1%)
TS – (1%)
TS + (0.1%)
TS + (1%)
Figure 35. Output Swing and Error vs. Settling Time
0
10
20
30
40
50
60
70
OVER
SH
OOT
(
%
)
CAPACITANCE (pF)
1
100
10
1000
05072-031
OS+
OS–
VS = ±13V
RL = 10kΩ
VIN = 100mV p-p
AV = +1
Figure 36. Small Signal Overshoot vs. Load Capacitance