Systems and methods for voltage settling

A method of operating an image sensor that includes an image pixel coupled to readout circuitry using a column line, the method comprising:

• at voltage settling circuitry, activating a first transistor to couple the column line to a ground voltage terminal;
• at the voltage settling circuitry, activating a second transistor to couple the column line to a supply voltage terminal;
• and
• after activating the second transistor, deactivating the second transistor based on a feedback path coupled directly to the column line.

Voltage settling circuitry, comprising:

• a signal line;
• a pull-down circuit having a first transistor that couples the signal line to a ground voltage terminal;
• and
• a pull-up circuit having second and third transistors, wherein the second transistor couples the signal line to a power supply voltage terminal, wherein the third transistor receives a reference voltage, and wherein a state of the second transistor is determined based on a difference between the reference voltage and a voltage on the signal line.