Voltage-to-time-to-voltage amplifier (vtva) using time delay

A method for voltage-to-time-to-voltage amplification, comprising:

• sourcing or sinking, via a first current source, a first current to or from a first input capacitive element during a first phase, the first input capacitive element being selectively coupled to a first input node of a voltage-to-time-to-voltage amplifier (VTVA);
• comparing, via a first amplifier, a voltage on the first input capacitive element to a threshold voltage;
• and
• sourcing or sinking, via the first current source, a second current to or from a first output capacitive element during a second phase based on the comparison, the first output capacitive element being coupled to a first output node of the VTVA, wherein the first phase is non-overlapping with the second phase.

A voltage-to-time-to-voltage amplifier (VTVA), comprising:

• a first input node;
• a first input capacitive element selectively coupled to the first input node;
• a first amplifier having an input coupled to the first input capacitive element;
• a first current source;
• a first switch coupled between the first current source and the first input capacitive element;
• a first output node;
• a first output capacitive element coupled to the first output node;
• and
• a second switch coupled between the first current source and the first output capacitive element, a control input of the second switch being coupled to an output of the first amplifier.

A differential voltage-to-time-to-voltage amplifier (VTVA), comprising:

• a first input capacitive element and a second input capacitive element selectively coupled to differential input nodes of the VTVA, respectively;
• a first amplifier and a second amplifier having inputs coupled to the first input capacitive element and the second input capacitive element, respectively;
• a first current source selectively coupled to the first input capacitive element via a first switch;
• a second current source selectively coupled to the second input capacitive element via a second switch;
• a first alternating-current (AC)-coupling capacitive element coupled between the first switch and the first input capacitive element;
• and
• a second AC-coupling capacitive element coupled between the second switch and the second input capacitive element.