Datasheet

ADA4930-1/ADA4930-2
Rev. A | Page 10 of 28
–27
–24
–21
–18
–15
–12
–9
–6
–3
0
3
1M 10M 100M 1G 10G
FREQUENCY (Hz)
NORMALIZED CLOSED LOOP GAIN (dB)
V
IN
= 100mV p-p
R
L
= 1k
R
L
= 200
0
9209-013
Figure 13. Small Signal Frequency Response for R
L
= 200 Ω and R
L
= 1 kΩ
–6
–5
–4
–3
–2
–1
0
1
2
3
1M 10M 100M
1G
FREQUENCY (Hz)
GAIN (dB)
09209-014
V
IN
= 100mV
Figure 14. V
OCM
Small Signal Frequency Response
–120
–110
–100
–90
–80
–70
DISTORTION (dBc)
–60
–50
–
40
1M 10M 100M 200M
FREQUENCY (Hz)
HD2, GAIN = 1
HD3, GAIN = 1
HD2, GAIN = 2
HD3, GAIN = 2
HD2, GAIN = 5
HD3, GAIN = 5
09209-015
Figure 15. Harmonic Distortion vs. Frequency
for Gain = 1, Gain = 2, and Gain = 5
–27
–24
–21
–18
–15
–12
–9
–6
–3
3
0
6
1M 10M 100M 1G 10G
FREQUENCY (Hz)
CLOSED-LOOP GAIN (dB)
V
IN
= 2V p-p
R
L
= 1k
R
L
= 200
0
9209-016
Figure 16. Large Signal Frequency Response
for R
L
= 200 Ω and R
L
= 1 kΩ
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
1M 10M 100M 1G
GAIN (dB)
FREQUENCY (Hz)
ADA4930-2, 200, OUT 1
ADA4930-2, 200, OUT 2
ADA4930-1, 200
ADA4930-1, 1k
ADA4930-2, 1k, OUT 1
ADA4930-2, 1k, OUT 2
09209-017
Figure 17. Small Signal 0.1 dB Flatness vs. Frequency for
R
L
= 200 Ω and R
L
= 1 kΩ
–110
–100
–90
–80
–70
–60
–
50
1M 10M 100M 200M
DISTORTION (dBc)
FREQUENCY (Hz)
HD2, R
L
= 200
HD3, R
L
= 200
HD2, R
L
= 1k
HD3, R
L
= 1k
09209-018
Figure 18. Harmonic Distortion vs. Frequency
for R
L
= 200 Ω and R
L
= 1 kΩ