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
–12–
10
90
100
0%
2µs10mV
GND
Figure 33. V
S
= +5 V, 0 V; Unity Gain Follower Response
to 40 mV Step Centered 40 mV Above Ground
10
90
100
0%
2µs10mV
GND
Figure 34. V
S
= +5 V, 0 V; Gain of Two Inverter Response
to 20 mV Step, Centered 20 mV Below Ground
10
90
100
0%
10µs500mV
GND
Figure 35. V
S
= 3 V, 0 V; Gain of Two Inverter, V
IN
= 1.25 V,
25 kHz, Sine Wave Centered at –0.75 V, R
L
= 600
Ω
+V
S
V
IN
R
L
100pF
V
OUT
3
2
7
6
4
AD820
0.01µF
10k
20k
+V
S
V
IN
R
L
100pF
V
OUT
3
2
7
6
4
AD820
0.01µF
10
90
100
0%
2µs1V
GND
Figure 32. V
S
= +5 V, 0 V; Gain of Two Inverter Response
to 2.5 V Step Centered –1.25 V Below Ground
Figure 31. Gain of Two Inverter
Figure 30. Unity-Gain Follower