AD8021 Analog Devices, AD8021 Datasheet - Page 10

• Manufacturer Part Number: AD8021
• Description: Low Noise, High Speed Amplifier for 16-Bit Systems
• Manufacturer: Analog Devices

Specifications of AD8021

• -3db Bandwidth: 490MHz
• Slew Rate: 150V/µs
• Vos: 400µV
• Ib: 7.5µA
• # Opamps Per Pkg: 1
• Input Noise (nv/rthz): 2.1nV/rtHz
• Vcc-vee: 4.5V to 24V
• Isy Per Amplifier: 7.7mA
• Packages: SOIC,SOP

AD8021
Frequency and Capacitive Load, Noninverting, V
Figure 12. Frequency Response vs. Frequency, Temperature, and
Figure 11. Large Signal Frequency Response vs. Frequency and
–12
10
–1
18
15
12
–3
–6
–9
0.1M
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
6
3
0
1M
1M
G = +2
G = +2
G = +2
Figure 13. Small Signal Frequency Response vs.
Load, Noninverting (See Figure 49)
V
OUT
1M
(See Figure 49 and Figure 71)
, Noninverting (See Figure 48)
V
2V p-p
10M
OUT
10M
+25°C
+85°C
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
=
–40°C
R
10M
L
= 100Ω
–40°C
50pF
100M
100M
R
+85°C
100M
L
= 1kΩ
OUT
30pF
V
50mV p-p
20pF
= 50 mV p-p
OUT
+25°C
10pF
0pF
=
1G
1G
1G
Rev. F | Page 10 of 28
100
Figure 14. Small Signal Frequency Response vs. Frequency and R
Figure 15. Small Signal Frequency Response vs. Frequency and R
90
80
70
60
50
40
30
20
10
Figure 16. Open-Loop Gain and Phase vs. Frequency, R
0
–12
–15
10k
10
15
12
–3
–6
–9
9
8
7
6
5
4
3
2
1
0
R
9
6
3
0
0.1M
0.1M
F
= 1 kΩ, R
G = +2
G = +2
R
F
= R
Noninverting, V
Noninverting, V
G
100k
O
= 976 Ω, R
1M
1M
FREQUENCY (Hz)
R
OUT
OUT
1M
FREQUENCY (Hz)
F
FREQUENCY (Hz)
D
= 1kΩ AND C
= 53.6 Ω, C
= 50 mV p-p (See Figure 48)
= 50 mV p-p (See Figure 48)
10M
10M
R
F
R
10M
= 499Ω
F
= 75Ω
F
C
= 0 pF (See Figure 50)
= 2.2pF
R
S
R
S
= 49.9Ω
= 100Ω
R
100M
100M
S
100M
= 249Ω
R
R
R
F
F
F
= 1kΩ
= 250Ω
G
= 150Ω
= 100 Ω,
1G
180
135
90
45
0
–45
–90
–135
1G
1G
F
S
,
,