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Digital 440MBit / s sending system driver amplifier circuit

2015-01-04 06:10  
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Digital 440MBit / s sending system driver amplifier circuit composed of OPA2662
Digital 440MBit / s sending system driver amplifier circuit composed of OPA2662
Input and output impulse response waveforms are shown as below. The cicuit uses an OTA which is inside of OPA2662 to constitute a common-emitter amplifier, that is, the input -end is added 100Ω current limiting resistor and 50Ω matching resistor, then the signal is amplified and output to drive 50Ω cable and load. Io = ± 17mA.