Row driver assembly and solid-state imaging device
AssigneeSony Semiconductor Solutions Corporation
InventorsJae-Sung AN, Naoki KAWAZU
Life of this patent
Estimating the term…
Abstract
A row driver assembly includes a row driver unit having a plurality of buffer circuits, each buffer circuit including a high buffer supply input and a low buffer supply input and configured to drive a control signal to a pixel circuit that converts incident radiation into an electric signal. A voltage converter unit is coupled to the low buffer supply inputs and includes a voltage regulator circuit and a charge pump circuit. The voltage regulator circuit has an input, an output, and a reference input, with the output coupled to a low buffer supply input of a first buffer circuit. The charge pump circuit has an output coupled to the reference input of the voltage regulator circuit.
Claims13
A row driver assembly, comprising:
- a row driver unit comprising n buffer circuits, n being an integer larger than 1, wherein each of the n buffer circuits includes a high buffer supply input and a low buffer supply input, and is configured to drive a buffered control signal to a pixel circuit configured to convert incident radiation into an electric signal;
- a voltage converter unit electrically coupled to low buffer supply inputs of the n buffer circuits, the voltage converter unit including a voltage regulator circuit comprising an input, an output, and a reference input, wherein the output of the voltage regulator circuit is electrically coupled to a low buffer supply input of a first buffer circuit of the n buffer circuits;
- and
- a charge pump circuit, wherein an output of the charge pump circuit is electrically coupled to the reference input of the voltage regulator circuit.
Dependencies are inferred from the claim text.