AD8041
200
INPUT VOLTAAGE NOISE – nV/
√
Hz
150
100
50
0
10
100
1k
FREQUENCY – Hz
10k
100k
Figure 10. Input Voltage Noise vs. Frequency
Figure 13. Differential Gain and Phase Errors
–30
6.5
V
S
= +3V, A
V
= –1,
R
L
= 100Ω TO 1.5V
V
S
= +5V, A
V
= +2,
R
L
= 100Ω TO 2.5V
6.4
6.3
TOTAL HARMONIC DISTORTION – dBc
–40
–50
CLOSED-LOOP GAIN – dB
6.2
6.1
6.0
V
S
= +5V
G = +2
R
L
= 150Ω TO 2.5V
R
F
= 402Ω
–60
–70
–80
V
S
= +5V, A
V
= +2,
R
L
= 1kΩ TO 2.5V
–90
V
S
= +5V, A
V
= +1,
R
L
= 1kΩ TO 2.5V
3
4
5
6
2
FUNDAMENTAL FREQUENCY – MHz
7
8 9 10
V
S
= +5V, A
V
= +1,
R
L
= 100Ω TO 2.5V
32.4MHz
5.9
5.8
5.7
5.6
5.5
1
10
FREQUENCY – MHz
100
500
–100
1
Figure 11. Total Harmonic Distortion
Figure 14. 0.1 dB Gain Flatness
–30
10MHz
–40
+120
+100
+180
+135
90
45
0
PHASE
–45
–90
–135
–180
500
–50
WORST HARMONIC – dBc
OPEN-LOOP GAIN – dB
–70
–80
–90
–100
–110
–120
–130
–140
0
0.5
1
2.5
1.5
2
3
3.5
OUTPUT VOLTAGE – V
PP
4
4.5
5
V
S
= +5V
R
L
= 2kΩ TO +2.5V
GAIN = +2
1MHz
+60
+40
+20
0
–20
–40
0.0
0.1
1
10
FREQUENCY – MHz
100
Figure 12. Worst Harmonic vs. Output Voltage
Figure 15. Open-Loop Gain and Phase Margin
vs. Frequency
REV. 0
–7–
PHASE MARGIN – Degrees
–60
5MHz
+80
GAIN
V
S
= +5V
R
L
= 2kΩ TO +2.5V
C
L
= 5pF TO +2.5V
AD [ ANALOG DEVICES ]
