Datasheet
Table Of Contents
- Specifications
- Pinout
- Package drawings
- Ordering Guide
- Features
- Applications
- Product Description
- Absolute Maximum Ratings
- Typical Characteristics
- APPLICATION NOTES Input Characteristics
- OUTPUT CHARACTERISTICS
- OFFSET VOLTAGE ADJUSTMENT
- DIAGRAMS
- Unity-Gain Follower
- Unity-Gain Follower
- Gain of Two Inverter
- Total Noise vs. Source Impedance
- Extending Unity Gain Follower Capacitive Load Capability Beyond 350 pF
- Offset Null
- Capacitive Load Tolerance vs. Noise Gain
- Single Supply Half- and Full-Wave Rectifier
- Single Supply 4.5 Volt Low Dropout Reference
- 10 Hz Sallen Key Low-Pass Filter

AD820
REV. A
–11–
10
90
100
0%
5µs5V
Figure 27. Large Signal Response Unity Gain Follower;
V
S
=
±
15 V, R
L
= 10 k
Ω
10
90
100
0%
500ns10mV
Figure 28. Small Signal Response Unity Gain Follower;
V
S
=
±
15 V, R
L
= 10 k
Ω
10
90
100
0%
2µs1V
GND
Figure 29. V
S
= +5 V, 0 V; Unity Gain Follower Response
to 0 V to 5 V Step
–V
S
+V
S
V
IN
R
L
100pF
V
OUT
3
2
7
6
4
AD820
0.01µF
0.01µF
Figure 24. Unity-Gain Follower
10
90
100
0%
10µs5V
Figure 25. 20 V, 25 kHz Sine Input; Unity Gain Follower;
R
L
= 600
Ω
, V
S
=
±
15 V
10
90
100
0%
2µs1V
GND
Figure 26. V
S
= +5 V, 0 V; Unity Gain Follower Response
to 0 V to 4 V Step