Light detection and ranging receiver with avalanche photodiodes

A light detection and ranging (lidar) receiver, comprising:

• a first photodiode;
• a first amplifier connected to the first photodiode;
• a first analog-to-digital converter (ADC) connected to an output of the first amplifier;
• a second photodiode;
• a second amplifier connected to the second photodiode;
• a second ADC connected to an output of the second amplifier;
• a processor connected to an output of the first ADC and an output of the second ADC;
• and
• a direct-current-to-direct-current converter connected to an output of the processor and to the first photodiode and the second photodiode.

A method, comprising:

• generating, by a lidar receiver, using a first photodiode, and based at least in part on a reflection of an optical beam, a first analog signal;
• deriving, by the lidar receiver and based on the first analog signal, a first digital signal;
• generating, by the lidar receiver, using a second photodiode, and based at least in part on the reflection of the optical beam, a second analog signal;
• deriving, by the lidar receiver and based on the second analog signal, a second digital signal;
• and
• determining, by the lidar receiver and based on the first digital signal and the second digital signal, a first bias to apply to the first photodiode and a second bias to apply to the second photodiode,
• wherein, when the first bias is applied to the first photodiode and the second bias is applied to the second photodiode, a first current associated with the first analog signal corresponds to a second current associated with the second analog signal.