AD603
102
100
98
102
100
98
102
100
98
96
96
96
94
94
94
100k
1M
10M
100M
100k
1M
10M
100M
100k
1M
10M
100M
FREQUENCY – Hz
FREQUENCY – Hz
FREQUENCY – Hz
Figure 25. Input Impedance vs.
Frequency (Gain = –10 dB)
Figure 26. Input Impedance vs.
Frequency (Gain = +10 dB)
Figure 27. Input Impedance vs.
Frequency (Gain = +30 dB)
8V
4.5V
1V
INPUT GND
1V/DIV
100
90
INPUT GND
100mV/DIV
1V
500mV
OUTPUT GND
1V/DIV
10
0%
OUTPUT GND
500mV/DIV
200ns
1V
–2V
–49ns
–500mV
–49ns
50ns
451ns
50ns
451ns
Figure 28. Gain-Control Channel
Response Time
Figure 29. Input Stage Overload
Recovery Time, Pin 5 Connected to
Pin 7 (Input Is 500 ns Period, 50%
Duty-Cycle Square Wave, Output Is
Captured Using Tektronix 11402
Digitizing Oscilloscope)
Figure 30. Output Stage Overload
Recovery Time, Pin 5 Connected to
Pin 7 (Input Is 500 ns Period, 50%
Duty-Cycle Square Wave, Output Is
Captured Using Tektronix 11402
Digitizing Oscilloscope)
3.5V
3.5V
0
–10
–20
–30
INPUT
500mV/DIV
INPUT GND
100mV/DIV
GND
GND
500mV
500mV
–40
–50
–60
OUTPUT
500mV/DIV
OUTPUT GND
500mV/DIV
–1.5V
–44ns
–1.5V
–44ns
50ns
456ns
50ns
456ns
100k
1M
10M
100M
FREQUENCY – Hz
Figure 31. Transient Response,
G = 0 dB, Pin 5 Connected to Pin 7
(Input is 500 ns Period, 50% Duty-
Cycle Square Wave, Output Is
Captured Using Tektronix 11402
Digitizing Oscilloscope)
Figure 32. Transient Response,
G = +20 dB, Pin 5 Connected to Pin 7
(Input is 500 ns Period, 50% Duty-
Cycle Square Wave, Output Is
Captured Using Tektronix 11402
Digitizing Oscilloscope)
Figure 33. PSRR vs. Frequency (Worst
Case Is Negative Supply PSRR,
Shown Here)
–12–
REV. C
ADI [ ADI ]
