Burst mode amplifier

An amplifier for converting single-ended input signals to differential output signals, comprising:

• a first differential amplifier comprising:
• a first differential input;
• a second differential input;
• a first differential output;
• and
• a second differential output;
• a second differential amplifier comprising:
• a third differential input connected to said first differential output;
• a fourth differential input connected to said second differential output;
• a third differential output;
• and
• a fourth differential output;
• and
• an integrator comprising:
• an operational amplifier comprising:
• a first input;
• a second input;
• and
• a first output connected to said second differential input;
• a first transistor comprising:
• an emitter connected to said operational amplifier first input;
• and
• a base electrically coupled to said fourth differential output;
• and
• a second transistor comprising:
• an emitter connected to said operational amplifier second input;
• and
• a base electrically coupled to third differential output.

An amplifier for differential output offset cancellation, comprising:

• a first differential amplifier comprising:
• a first differential input;
• a second differential input;
• a first differential output;
• and
• a second differential output;
• a second differential amplifier comprising:
• a third differential input connected to said first differential output;
• a fourth differential input connected to said second differential output;
• a third differential output;
• and
• a fourth differential output;
• and
• an integrator comprising:
• an operational amplifier having a first input, a second input, a first output connected to said second differential input, and a second output connected to said first differential input;
• a first transistor comprising:
• an emitter connected to said operational amplifier first input;
• and
• a base electrically coupled to said fourth differential output;
• and
• a second transistor comprising:
• an emitter connected to said operational amplifier second input;
• and
• a base electrically coupled to said third differential output.

A monolithic semiconductor integrated circuit, comprising:

• an operational amplifier having a first input, a second input, a first output, and a second output;
• a first capacitor connected from said operational amplifier first input to said operational amplifier first output;
• a second capacitor connected from said operational amplifier second input to said operational amplifier second output;
• a first transistor comprising:
• a base;
• and
• an emitter connected to said operational amplifier first input;
• and
• a second transistor comprising:
• a base;
• and
• an emitter connected to said operational amplifier second input.