AD8021–Typical Performance Characteristics
(T
A
= 25 C, V
S
= 5 V, R
L
= 1 k , G = +2, R
F
= R
G
= 499
Freq = 1 MHz, unless otherwise noted.)
24
21
18
CLOSED-LOOP GAIN – dB
15
12
9
6
3
0
–3
–6
0.1M
G = 1, R
F
= 75 , C
C
= 10pF
G = 2, R
F
= R
G
= 499 , C
C
= 7pF
G = 5, R
F
= 1k , R
G
= 249 , C
C
= 2pF
GAIN – dB
G = 10, R
F
= 1k , R
G
= 110 , C
C
= 0pF
, R
S
= 49.9
, R
O
= 976
9
, R
D
= 53.6
G=2
, C
C
= 7 pF, C
L
= 0, C
F
= 0, V
OUT
= 2 V p-p,
8
7
6
5
4
3
2
V
S
=
2.5V
5V
12V
V
S
=
1
0
2.5V
1M
10M
FREQUENCY – Hz
100M
1G
–1
1M
10M
100M
FREQUENCY – Hz
1G
TPC 1. Small Signal Frequency Response vs.
Frequency and Gain, V
OUT
= 50 mV p-p,
Noninverting. See Test Circuit 1.
24
21
18
15
G = –10, R
F
= 1k , R
G
= 100 ,
R
IN
= 100 , C
C
= 0pF
G = –5, R
F
= 1k , R
G
= 200 ,
R
IN
= 66.5 , C
C
= 1.5pF
TPC 4. Small Signal Frequency Response vs.
Frequency and Supply, V
OUT
= 50 mV p-p,
Noninverting. See Test Circuit 1.
3
G = –1
2
1
0
GAIN – dB
V
S
=
2.5V
5V
GAIN – dB
12
9
6
3
0
–3
–6
0.1M
–1
–2
–3
–4
–5
V
S
=
12V
G = –2, R
F
= 499 , R
G
= 249 ,
R
IN
= 63.4 , C
C
= 4pF
G = –1, R
F
= 499 , R
G
= 499 ,
R
IN
= 56.2 , C
C
= 7pF
1M
10M
FREQUENCY – Hz
100M
1G
V
S
=
–6
–7
1M
2.5V
10M
100M
FREQUENCY – Hz
1G
TPC 2. Small Signal Frequency Response
vs. Frequency and Gain, V
OUT
= 50 mV p-p,
Inverting. See Test Circuit 1.
TPC 5. Small Signal Frequency Response vs.
Frequency and Supply, V
OUT
= 50 mV p-p,
Inverting. See Test Circuit 3.
9
G=2
8
7
6
GAIN – dB
GAIN – dB
9
C
C
= 5pF
G=2
8
7
6
5
4
V
OUT
= 4V p-p
3
2
1V p-p
V
OUT
= 0.1V AND 50mV p-p
7pF
5
9pF
4
3
2
1
0
–1
0.1M
1M
10M
FREQUENCY – Hz
100M
1G
7pF
9pF
1
0
–1
1M
10M
100M
FREQUENCY – Hz
1G
TPC 3. Small Signal Frequency Response vs.
Frequency and Compensation Capacitor,
V
OUT
= 50 mV p-p. See Test Circuit 1.
TPC 6. Frequency Response vs. Frequency
and V
OUT
, Noninverting. See Test Circuit 1.
–6–
REV. D
AD [ ANALOG DEVICES ]
