ADA4691-2/ADA4691-4/ADA4692-2/ADA4692-4
Rev. C | Page 12 of 20
1k
100
10
0.1
1
10
100
1k
10k
V
O
L
T
AG
E
NO
IS
E
DE
NS
IT
Y
(
n
V
/
Hz
)
FREQUENCY (Hz)
ADA4692-2
VSY = ±1.35V
TA = 25°C
07
95
0-
0
29
Figure 33. Voltage Noise Density vs. Frequency
50
0
5
10
15
20
25
30
35
40
45
10
100
1k
O
VER
SH
O
T
(
%
)
CAPACITANCE (pF)
ADA4692-2
VSY = ±1.35V
VIN = 100mV p-p
AV = +1
RL = 2k
TA = 25°C
OVERSHOOT+
OVERSHOOT–
07
95
0-
0
33
Figure 34. Small Signal Overshoot vs. Load Capacitance
TIME (2s/DIV)
O
U
T
PU
T
(
50
0m
V/
D
IV)
ADA4692-2
VSY = ±1.35V
GAIN = +1
RL = 2k
CL = 300pF
TA = 25°C
07
95
0-
0
34
Figure 35. Large Signal Transient Response
1k
100
10
0.1
1
10
100
1k
10k
V
O
L
T
AG
E
NO
IS
E
DE
NS
IT
Y
(
n
V
/
Hz
)
FREQUENCY (Hz)
07
95
0-
0
32
ADA4692-2
VSY = ±2.5V
TA = 25°C
Figure 36. Voltage Noise Density vs. Frequency
45
0
5
10
15
20
25
30
35
40
10
100
1k
O
VER
SH
O
T
(
%
)
CAPACITANCE (pF)
ADA4692-2
VSY = ±2.5V
VIN = 100mV p-p
AV = +1
RL = 2k
TA = 25°C
OVERSHOOT+
OVERSHOOT–
07
95
0-
0
36
Figure 37. Small Signal Overshoot vs. Load Capacitance
ADA4692-2
VSY = ±2.5V
GAIN = +1
RL = 2k,
CL = 300pF
TA = 25°C
07
95
0-
0
37
TIME (2s/DIV)
OU
T
P
U
T
(
50
0m
V
/D
IV
)
Figure 38. Large Signal Transient Response
