Datasheet

AD8337
Rev. C | Page 10 of 32
10
0.1
11
05575-021
SOURCE RESISTANCE (Ω)
INPUT-REFERRED NOISE (nV/√Hz)
1
10 100 k
R
S
THERMAL NOISE ALONE
INPUT-REFERRED NOISE
f = 10MHz,
V
GAIN
= 0.7V
Figure 21. Input-Referred Noise vs. R
S
(See Figure 61)
25
0
20
30
–800
V
GAIN
(mV)
–600 –200–400 400 600200 800
15
50Ω SOURCE
5
10
35
WITH 50Ω SHUNT
TERMINATION AT INPUT
NOISE FIGURE (dB)
05575-022
UNTERMINATED
Figure 22. Noise Figure vs. V
GAIN
(See Figure 51)
05575-023
–40
–50
0
LOAD RESISTANCE (
Ω )
200 400 600 800
–60
–80
–70
2.0k1.0k 1.2k 1.4k 1.6k 1.8k
V
OUT
= 1V p-p
V
GAIN
= 0V
HARMONIC DISTORTION (
dBc)
HD3 V
S
= ±2.5V
HD3 V
S
= ±5V
HD2 V
S
= ±2.5V
HD2 V
S
= ±5V
Figure 23. Harmonic Distortion vs. R
L
and Supply Voltage
(See Figure 52)
–40
25
–50
05 4010 3515 3020
–60
–80
–70
45 50
05575-024
LOAD CAPACITANCE (pF)
HARMONIC DISTORTION (dBc)
HD3
HD2
Figure 24. Harmonic Distortion vs. Load Capacitance
(See Figure 52)
–30
200
–50
–800
V
GAIN
(mV)
–600 800–400 600–200 4000
–60
–80
–70
–40
SECOND-ORDER HARMONIC DISTORTION (dBc)
1MHz
10MHz
35MHz
100MHz
05575-025
Figure 25. HD2 vs. V
GAIN
at Four Frequencies
(See Figure 52)
–30
200
–50
–800
V
GAIN
(mV)
–600 800–400 600–200 4000
–60
–80
–70
–40
THIRD-ORDER HARMONICDISTORTION (dBc)
05575-026
1MHz
10MHz
35MHz
100MHz
Figure 26. HD3 vs. V
GAIN
at Four Frequencies
(See Figure 52)