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Analog_video_switch_and_amplifier_with_direct_coupled_output

2016-09-13 06:23  
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Analog_video_switch_and_amplifier_with_direct_coupled_output
This circuit shows a CA3256 switch/amplifier connected for a direct-coupled output. One of four channels can be selected in parallel with channel 5. The analog switches of channels 1 to 4 are digitally controlled by logic (Fig. 3-35B). A VEE of -5 V is required. Vcc can be from +5 to +12 V. Amplifier gain is determined by the external resistor Rf, as shown by the equaeion.