AD705AQ AD [Analog Devices], AD705AQ Datasheet - Page 6

• Manufacturer Part Number: AD705AQ
• Description: Picoampere Input Current Bipolar Op Amp
• Manufacturer: AD [Analog Devices]

AD705
V
SQUARE WAVE
IN
0.001
100
0.01
Figure 19. Slew Rate & Gain
Bandwidth Product vs. Value of
Overcompensation Capacitor
90
10
0%
0.1
INPUT
VALUE OF OVERCOMPENSATION CAPACITOR – pF
Figure 21b. Unity Gain Follower
Large Signal Pulse Response
R
1
Figure 22a. Unity Gain Inverter
10k
F
1
= 10 k , C
2V
INCREASES THE AMPLIFIER'S
ADDING AN EXTERNAL
CAPACITOR BETWEEN
2
3
PIN 5 AND GROUND
COMPENSATION
10
AD705
10k
–V
+V
SLEW RATE
L
4
7
S
S
= 50 pF
100
GAIN BANDWIDTH
0.1µF
6
0.1µF
2.5k
1000
20µs
R
L
10,000
C
L
V
1M
100k
10k
1k
OUT
100
100
0.001
1000
90
10
0%
90
10
0%
0.01
100
Figure 20. Magnitude of Closed
Loop Output Impedance vs.
Frequency
Figure 21c. Unity Gain Follower
Small Signal Pulse Response
R
0.1
10
Large Signal Pulse Response
C
Figure 22b. Unity Gain Inverter
1
F
L
1
= 0 , C
= 50 pF
20mV
A
2V
V
= –1000
10
L
FREQUENCY – Hz
= 100 pF
–6–
100
A
V
= +1
I
OUT
= +1mA
1k
50µs
5µs
10k
100k
V
SQUARE WAVE
IN
100
100
90
10
0%
90
10
0%
Figure 21d. Unity Gain Follower
Small Signal Pulse Response
R
(For Large Signal Applications,
Resistor R
Through the Input Protection
Diodes)
Small Signal Pulse Response
C
Figure 21a. Unity Gain Follower
Figure 22c. Unity Gain Inverter
INPUT
F
L
= 0
= 100 pF
20mV
20mV
2
3
AD705
R
, C
F
–V
+V
7
4
S
L
S
F
= 1000 pF
Limits the Current
0.1µF
6
0.1µF
2k
R
L
5µs
5µs
REV. B
C
L
V
OUT