Datasheet

ADA4927-1/ADA4927-2
Rev. A | Page 13 of
1k
100
10
1
0.1
50
0
–50
–100
–150
–200
10 100 1k 10k 100k 1M 10M 100M 1G 10G
FREQUENCY (Hz)
IMPEDANCE MAGNITUDE (kΩ)
IMPEDANCE PHASE (Degrees)
07574-034
–
24
–50
–60
–70
30
–40
–80
1 10 100 1k
OUTPUT BALANCE (dB)
4-031
FREQUENCY (MHz)
0757
R
L
,
dm
= 200Ω
–70
1 10 100 1k
032
MAGNITUDE
PHASE
Figure 31. Output Balance vs. Frequency
–30
–40
–50
0
–10
–20
–60
RETURN LOSS (dB)
FREQUENCY (MHz)
07574-
S
11
S
22
R
L
,
dm
= 200Ω
INPUT SINGLE-ENDED, 50Ω LOAD TERMINATION
OUTPUT DIFFERENTIAL, 100Ω SOURCE TERMINATION
S
11
: COMMON-MODE-TO-COMMON-MODE
S
22
: DIFFERENTIAL-TO-DIFFERENTIAL
Figure 32. Return Loss (S
11
, S
12
) vs. Frequency
100
10
INPUT VOLTAGE NOISE (nV/
Figure 34. Open-Loop Transimpedance Magnitude and Phase vs. Frequency
35
30
25
20
15
10
5
0
–5
–10
0.1 1 10 100 1k
FREQUENCY (MHz)
CLOSED-LOOP OUTPUT IMPEDANCE (Ω)
07574-035
V
OP
,V
S
= ±5V
V
ON
, V
S
= ±5V
V
OP
, V
S
= ±2.5V
V
ON
, V
S
= ±2.5V
Figure 35. Closed-Loop Output Impedance Magnitude vs. Frequency at
Various Supplies, G = 1
10
5
0
–5
VOLTAGE (V)
–10
0 102030405060708090100
TIME (ns)
07574-036
1
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Hz)
07574-033
Figure 33. Voltage Noise Spectral Density, Referred to Input
V
IN
× 10
V
OUT
,
dm
Figure 36. Overdrive Recovery, G = 10