Multi-channel equalization to compensate for impairments introduced by interleaved devices

An apparatus comprising:

• an interleaved analog to digital converter (ADC) having M interleaved ADC channels,
• the interleaved ADC comprising:
• an input port for receiving an analog input signal;
• a programmable gain amplifier coupled to the input port;
• M ADC channels, each coupled to an output of the programmable gain amplifier, each ADC channel including a track-and-hold unit coupled to ADC conversion circuitry;
• retimer circuitry coupled to the ADC channels to combine digital output signals from the ADC channels into a digital output signal for the interleaved ADC;
• an output port coupled to the retimer circuitry;
• automatic gain control coupled between the retimer circuitry and the programmable gain amplifier, for adjusting a gain of the programmable gain amplifier;
• and
• a timing recovery circuit and analog phase interpolator, coupled to an output of the retimer circuitry for adjusting a phase of a clock input to the track-and-hold units;
• and
• a multi-channel equalizer coupled to an output of the interleaved ADC, the multi-channel equalizer capable of applying a different equalization to different interleaved ADC channels.