Low-noise differential to single-ended converter

A differential to single-ended converter, comprising:

• a first input node and a second input node configured to receive a pair of differential signals;
• an operational amplifier having a positive input terminal, a negative input terminal, and an output terminal;
• a first resistor coupled between the first input node of the differential to single-ended converter and the positive input terminal of the operational amplifier;
• a second resistor coupled between the second input node of the differential to single-ended converter and the negative input terminal of the operational amplifier;
• a feedback resistor coupled between the output terminal and the negative input terminal of the operational amplifier;
• and
• a feedback circuit comprising:
• a buffer including a buffer input terminal and a buffer output terminal;
• a third resistor coupled between the buffer output terminal of the buffer and, the positive input terminal of the operational amplifier;
• and
• a fourth resistor coupled between the buffer output terminal of the buffer and the negative input terminal of the operational amplifier,
• wherein, when a first resistance value of the first resistor is set to R and a second resistance value of the second resistor is set to R,
• a third resistance value of the third resistor is set to n*R,
• a fourth resistance value of the fourth resistor is set to m*R,
• m and n are positive numbers, and
• m is less than (n−1).