Datasheet

REV. A
AD8047/AD8048
–9–
HARMONIC DISTORTION (dBc)
–90
–110
–70
–50
–30
100M1M100k10k
–40
–20
–60
–80
–100
–120
10M
SECOND HARMONIC
THIRD HARMONIC
FREQUENCY (Hz)
R
L
= 100
V
OUT
= 2V p-p
TPC 31. AD8048 Harmonic Distortion vs. Frequency,
G = +2
–15
–70
1.5 5.52.5 3.5 4.5 6.5
–55
–65
–25
–35
–45
SECOND HARMONIC
THIRD HARMONIC
–20
–60
–30
–40
–50
HARMONIC DISTORTION (dBc)
OUTPUT SWING (V p-p)
f = 20MHz
R
L
= 1k
R
F
= 200
TPC 32. AD8048 Harmonic Distortion vs. Output
Swing, G = +2
0.04
DIFF GAIN (%)
–0.04
0.00
–0.02
0.02
11th1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th
11th1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th
0.04
DIFF PHASE (Degrees)
–0.04
0.00
–0.02
0.02
TPC 33. AD8048 Differential Gain and Phase Error,
G = +2, R
L
= 150 Ω , R
F
= 200 Ω , R
IN
= 200 Ω
SETTLING TIME (ns)
0.5
0.4
–0.4
010
ERROR (%)
20
0.0
–0.1
–0.2
–0.3
0.2
0.1
0.3
–0.5
51525354530 40
R
L
= 100
R
F
= 200
V
OUT
= 2V STEP
TPC 34. AD8048 Short-Term Settling Time, G = +2
SETTLING TIME (s)
0.25
0.20
–0.20
048
0.0
–0.05
–0.10
–0.15
0.10
0.05
0.15
–0.25
261014 1812 16
ERROR (%)
R
L
= 100
R
F
= 200
V
OUT
= 2V STEP
TPC 35. AD8048 Long-Term Settling Time 2 V
Step, G = +2
17
13
3
100 100
k
10k1k10
15
9
11
5
7
FREQUENCY (Hz)
INPUT NOISE VOLTAGE (nV/
√
Hz)
TPC 36. AD8048 Noise vs. Frequency