AD704
10M
140
0
30
60
PHASE
80
60
40
GAIN
20
0
180
90
120
150
OUTPUT VOLTAGE SWING – Volts
(REFERRED TO SUPPLY VOLTAGES)
+V
S
–0.5
–1.0
–1.5
R
L
= 10kΩ
OPEN-LOOP VOLTAGE GAIN – dB
120
100
OPEN-LOOP VOLTAGE GAIN
+25 C
1M
+125 C
PHASE SHIFT – Degrees
–55 C
+1.5
+1.0
+0.5
–V
S
0
5
15
10
SUPPLY VOLTAGE –
±Volts
20
100k
1
–20
2
4 6 8 10
LOAD RESISTANCE – kΩ
100
0.01 0.1
1
10 100 1k 10k 100k 1M 10M
FREQUENCY – Hz
Figure 18. Open-Loop Gain vs.
Load Resistance Over Temperature
Figure 19. Open-Loop Gain and Phase
vs. Frequency
Figure 20. Output Voltage Swing vs.
Supply Voltage
CLOSED-LOOP OUTPUT IMPEDANCE – Ohms
1000
R
F
+V
S
0.1
µF
100
90
100
10
A
V
= –1000
1
A
V
= +1
0.1
1/4
AD704
V
IN
0.1
µF
R
L
2kΩ
C
L
V
OUT
10
0%
0.01
I
OUT
= +1mA
0.001
1
10
100
1k
FREQUENCY – Hz
10k
100k
SQUARE
WAVE INPUT
–V
S
2V
50µs
Figure 21. Closed-Loop Output
Impedance vs. Frequency
Figure 22a. Unity Gain Follower
(For Large Signal Applications,
Resistor R
F
Limits the Current
Through the Input Protection
Diodes)
5µs
100
90
Figure 22b. Unity Gain Follower
Large Signal Pulse Response
R
F
= 10 k
Ω
, C
L
= 1,000 pF
10kΩ
5µs
100
90
+V
S
0.1 µF
10kΩ
V
IN
1/4
AD704
R
L
2.5kΩ
V
OUT
C
L
10
0%
10
0%
SQUARE
WAVE INPUT
0.1 µF
20mV
20mV
–V
S
Figure 22c. Unity Gain Follower
Small Signal Pulse Response
R
F
= 0
Ω
, C
L
= 100 pF
Figure 22d. Unity Gain Follower
Small Signal Pulse Response
R
F
= 0
Ω
, C
L
= 1,000 pF
Figure 23a. Unity Gain Inverter
Connection
–6–
REV. A
AD [ ANALOG DEVICES ]
