ADA4941-1 Analog Devices, ADA4941-1 Datasheet - Page 10

• Manufacturer Part Number: ADA4941-1
• Description: Single Supply Differential 18-Bit ADC Driver
• Manufacturer: Analog Devices

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ADA4941-1
Figure 17. Distortion vs. Output Amplitude for Various Supplies (G = +2)
Figure 19. Distortion vs. Frequency at Various Output Amplitudes
–100
–105
–120
–125
–130
–135
–140
–100
–105
–120
–125
–130
–135
–140
–110
–115
–110
–115
–105
–115
–125
–135
–60
–65
–70
–75
–80
–85
–90
–95
–60
–65
–70
–75
–80
–85
–90
–95
–65
–75
–85
–95
0.1
0.1
Figure 18. Distortion vs. Frequency for Various Supplies
0
V
VREF = MIDSUPPLY
HD3
HD3
HD2
O, dm
HD2
HD3
2
HD3
= 2V p-p
V
HD2
S
4
= +3V
1
1
HD2
OUTPUT AMPLITUDE (V p-p)
HD2
HD2
6
HD3
FREQUENCY (kHz)
FREQUENCY (kHz)
V
S
HD3
8
= +5V
10
10
10
f
= 10kHz
12
V
O
14
HD3
= 6V p-p
V
100
100
S
= ±5V
HD2
V
16
O
V
V
V
= 2V p-p
S
S
S
= +3V
= +5V
= ±5V
18
1000
1000
20
Rev. A | Page 10 of 24
Figure 22. Small Signal Transient Response for Various Capacitive Loads
Figure 20. Distortion vs. Output Amplitude for Various Supplies (G = −2)
–100
–110
–120
–130
–140
–105
–125
–135
–145
–0.04
–0.08
–0.12
–115
–70
–80
–90
–65
–75
–85
–95
0.12
0.08
0.04
0.1
0
0
Figure 21. Distortion vs. Frequency for Various Gains
V
VREF = MIDSUPPLY
O, dm
HD3
HD3
2
V
= 2V p-p
S
HD3
= +3V
HD2
4
1
HD2
OUTPUT AMPLITUDE (V p-p)
6
HD3
FREQUENCY (kHz)
HD3
8
C
C
L
L
= 0pF
= 20pF
10
10
HD2
V
S
HD3
= +5V
12
DIFFERENTIAL G = –2
f
= 10kHz
14
V
100
OUT
16
= 200mV p-p
V
S
= ±5V
50ns/DIV
G = –2
G = +2
G = +4
18
1000
2
0