Datasheet AD603 (Analog Devices) - 8

AD603 Data Sheet 4.5V 102 INPUT GND 1V/DIV ) 100 (Ω NCE DA 98 500mV E P M I UT P 96 IN OUTPUT GND 500mV/DIV 94
5 8
–500mV
01
100k 1M 10M 100M
-01 9-
–49ns 50ns 451ns
9 53
FREQUENCY (Hz)
53 00 00 Figure 19. Input Stage Overload Recovery Time Figure 16. Input Impedance vs. Frequency (Gain = 10 dB) (Input Is 500 ns Period, 50% Duty-Cycle Square Wave, Output Is Captured Using Tektronix 11402 Digitizing Oscilloscope)
102 3V ) 100 (Ω INPUT GND NCE 100MV/DIV DA 98 E P M I 1V UT P 96 OUTPUT GND IN 1V/DIV 94
6 01
100k 1M 10M 100M
9- 53
FREQUENCY (Hz)
9
–2V
00 -01
–49ns 50ns 451ns
9 Figure 17. Input Impedance vs. Frequency (Gain = 30 dB) 53 00 Figure 20. Output Stage Overload Recovery Time (Input Is 500 ns Period, 50% Duty-Cycle Square Wave, Output Is Captured Using Tektronix 11402 Digitizing Oscilloscope)
3.5V 1V INPUT 100 500mV/DIV 90 GND 500mV OUTPUT 500mV/DIV GND 10 0%
7 01
1V 200ns
9- 53 0
–1.5V
00 -02
–44ns 50ns 456ns
9 Figure 18. Gain Control Channel Response Time 53 00 Figure 21. Transient Response, G = 0 dB (Input Is 500 ns Period, 50% Duty-Cycle Square Wave, Output Is Captured Using Tektronix 11402 Digitizing Oscilloscope) Rev. K | Page 8 of 24 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Noise Performance The Gain Control Interface Programming the Fixed-Gain Amplifier Using Pin Strapping Using the AD603 in Cascade Sequential Mode (Optimal SNR) Parallel Mode (Simplest Gain Control Interface) Low Gain Ripple Mode (Minimum Gain Error) Applications Information A Low Noise AGC Amplifier Caution Evaluation Board Outline Dimensions Ordering Guide