Datasheet

AD8129/AD8130
Rev. C | Page 20 of 40
02464-063
–78
–72
–66
–60
–54
–48
V
CM
(V)
DISTORTION (dBc)
–42
–36
–5 –4 –3 –2 –1 0 1 2 3 4
5
HD3
HD2
G = +10
V
OUT
= 2V p-p
V
S
= ±5V
R
L
= 1kΩ
f
C
= 5MHz
Figure 62. AD8129 Harmonic Distortion vs. Common-Mode Voltage
02464-064
–90
–84
–78
–72
–68
–60
R
L
( Ω )
DISTORTION (dBc)
–54
100
1
k
HD3
V
S
= ±2.5V
–48
G = +10
f
C
= 5MHz
V
OUT
= 1V p-p
V
S
= ±2.5V
V
S
= ±12V
V
S
= ±12V
V
S
= ±5V
V
S
= ±5V
HD2
Figure 63. AD8129 Harmonic Distortion vs. Load Resistance
02464-065
–80
–74
–68
–62
–56
–50
R
L
( Ω )
DISTORTION (dBc)
–44
100
1
k
HD3
G = +10
f
C
= 5MHz
V
OUT
= 2V p-p
V
S
= ±2.5V
V
S
= ±12V
V
S
= ±5V
V
S
= ±2.5V
V
S
= ±12V
V
S
= ±5V
Figure 64. AD8129 Harmonic Distortion vs. Load Resistance
02464-066
V
CM
200Ω
1:2
1
2
1
0
20
R
F
GR
G
0Ω
499Ω
2kΩ
2kΩ
–
499Ω
221Ω
105Ω
MINI-CIRCUITS
®
:
# T4-6T,
f
C
≤ 10MHz
# TC4-1W,
f
C
> 10MHz
R
G
R
F
R
L
R
L
C
L
Figure 65. AD8129/AD8130 Basic Distortion Test Circuit,
V
CM
= 0 V, Unless Otherwise Noted
02464-067
0.1
1.0
10
FREQUENCY (Hz)
100
10 100k100 1k 10k 1M 10M
CURRENT NOISE (pA/
√
Hz)
Figure 66. AD8129/AD8130 Input Current Noise vs. Frequency
02464-068
1
10
FREQUENCY (Hz)
100
CURRENT NOISE (nV/
√
Hz)
10 100k100 1k 10k 1M 10M
AD8130
AD8129
Figure 67. AD8129/AD8130 Input Voltage Noise vs. Frequency