ada4927 Analog Devices, Inc., ada4927 Datasheet - Page 13

• Manufacturer Part Number: ada4927
• Description: Ultralow Distortion Current Feedback Differential Adc Driver
• Manufacturer: Analog Devices, Inc.

100
–30
–40
–50
–60
–70
–80
–10
–20
–30
–40
–50
–60
–70
10
Figure 33. Voltage Noise Spectral Density, Referred to Input
1
10
0
1
1
R
INPUT SINGLE-ENDED, 50Ω LOAD TERMINATION
OUTPUT DIFFERENTIAL, 100Ω SOURCE TERMINATION
S
S
R
L
11
22
L
,
,
: COMMON-MODE-TO-COMMON-MODE
: DIFFERENTIAL-TO-DIFFERENTIAL
dm
Figure 32. Return Loss (S
dm
100
Figure 31. Output Balance vs. Frequency
= 200Ω
= 200Ω
1k
10
10
FREQUENCY (Hz)
FREQUENCY (MHz)
FREQUENCY (MHz)
10k
11
100k
, S
12
) vs. Frequency
100
100
1M
10M
S
S
11
22
100M
1k
1k
Rev. 0 | Page 13 of 24
Figure 34. Open-Loop Transimpedance Magnitude and Phase vs. Frequency
Figure 35. Closed-Loop Output Impedance Magnitude vs. Frequency at
100
0.1
1k
10
1
–10
–10
10
10
–5
35
30
25
20
15
10
–5
5
0
5
0
0.1
0
100
10
V
V
V
V
OP
ON
OP
ON
Figure 36. Overdrive Recovery, G = 10
1k
, V
, V
, V
, V
20
S
S
S
S
= ±5V
= ±5V
= ±2.5V
= ±2.5V
1
10k
V
Various Supplies, G = 1
30
IN
V
FREQUENCY (Hz)
OUT
× 10
FREQUENCY (MHz)
100k
ADA4927-1/ADA4927-2
40
,
dm
PHASE
TIME (ns)
50
10
1M
60
10M
MAGNITUDE
70
100M
100
80
1G
90
10G
100
50
0
–50
–100
–150
–200
1k