AD8021
Rev. F | Page 9 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
S
= ±5 V, R
L
= 1 kΩ, G = +2, R
F
= R
G
= 499 Ω, R
S
= 49.9 Ω, R
O
= 976 Ω, R
D
= 53.6 Ω, C
C
= 7 pF, C
L
= 0, C
F
= 0, V
OUT
= 2 V p-p,
frequency = 1 MHz, unless otherwise noted.
FREQUENCY (Hz)
0.1M 1G1M 10M 100M
CLOSED-LOOP GAIN (dB)
24
21
–6
18
15
12
9
6
3
0
–3
G = +10, R
F
= 1kΩ, R
G
= 110Ω, C
C
= 0pF
G = +5, R
F
= 1kΩ, R
G
= 249Ω, C
C
= 2pF
G = +2, R
F
= R
G
= 499Ω, C
C
= 7pF
G = +1, R
F
= 75Ω, C
C
= 10pF
01888-005
Figure 5. Small Signal Frequency Response vs. Frequency and Gain,
V
OUT
= 50 mV p-p, Noninverting (See Figure 48)
FREQUENCY (Hz)
0.1M 1G1M 10M 100M
GAIN (dB)
24
21
–6
18
15
12
9
6
3
0
–3
G = –10, R
F
= 1kΩ, R
G
= 100Ω,
R
IN
= 100Ω, C
C
= 0pF
G = –5, R
F
= 1kΩ, R
G
= 200Ω,
R
IN
= 66.5Ω, C
C
= 1.5pF
G = –2, R
F
= 499Ω, R
G
= 249Ω,
R
IN
= 63.4Ω, C
C
= 4pF
G = –1, R
F
= 499Ω, R
G
= 499Ω,
R
IN
= 56.2Ω, C
C
= 7pF
01888-006
Figure 6. Small Signal Frequency Response vs. Frequency and
Gain, V
OUT
= 50 mV p-p Inverting (See Figure 48)
FREQUENCY (Hz)
0.1M 1G1M
GAIN (dB)
10M 100M
9
8
–1
7
6
5
4
3
2
1
0
C
C
= 9pF
G = +2
C
C
= 7pF
C
C
= 7pF
C
C
= 9pF
C
C
= 5pF
01888-007
Figure 7. Small Signal Frequency Response vs. Frequency and
Compensation Capacitor, V
OUT
= 50 mV p-p (See Figure 48)
FREQUENCY (Hz)
1G1M
GAIN (dB)
10M 100M
9
8
–1
7
6
5
4
3
2
1
0
G = +2
V
S
= ±5V
V
S
= ±12V
V
S
= ±2.5V
V
S
= ±2.5V
01888-008
Figure 8. Small Signal Frequency Response vs. Frequency and Supply,
V
OUT
= 50 mV p-p, Noninverting (See Figure 48)
FREQUENCY (Hz)
1G1M
GAIN (dB)
10M 100M
3
2
–7
1
0
–1
–2
–3
–4
–5
–6
V
S
= ±5V
V
S
= ±2.5V
V
S
= ±2.5V
G = –1
V
S
= ±12V
01888-009
Figure 9. Small Signal Frequency Response vs. Frequency and Supply,
V
OUT
= 50 mV p-p, Inverting (See Figure 50)
FREQUENCY (Hz)
1G1M
GAIN (dB)
10M 100M
9
8
–1
7
6
5
4
3
2
1
0
V
OUT
= 1V p-p
V
OUT
= 4V p-p
V
OUT
= 0.1V AND 50mV p-p
G = +2
01888-010
Figure 10. Frequency Response vs. Frequency and V
OUT
, Noninverting
(See
Figure 48)
