Abstract: An electronic device includes a first driver suitable for driving an output node with a first voltage based on an activation control signal for a first driving period, a second driver suitable for driving the output node with a second voltage based on a deactivation control signal for a second driving period, a first booster suitable for boosting voltage of the output node based on an output boost signal for a first boost period, a third driver suitable for driving a control node with a second blocking control signal based on a first blocking control signal for a third driving period, and a blocker suitable for selectively blocking between the first driver and the output node based on a control voltage applied to the control node.

Abstract: An image sensing device includes: a first source ramp voltage generation circuit suitable for generating a first source ramp voltage that is adjusted a first voltage unit for each first period, a second source ramp voltage generation circuit suitable for generating a second source ramp voltage that is adjusted the first voltage unit for each first period and has a set voltage difference from the first source ramp voltage, and a ramp voltage generation circuit suitable for generating a ramp voltage that is adjusted a second voltage unit that is less than the first voltage unit for each second period that is shorter than the first period based on the first and second source ramp voltages and a plurality of first control signals.

Abstract: Disclosed are devices, systems and methods for reading out data at a high speed. The data output circuit includes a line memory configured to latch a digital signal, and output the latched digital signal to a pair of column lines in response to an output control signal, a precharge circuit configured to precharge the pair of column lines with a first precharge voltage level in response to a first precharge signal, a charge circuit configured to charge the pair of column lines with a voltage, a charge controller configured to charge the charge circuit with a second precharge voltage level in response to a second precharge signal, and a sense amplifier configured to amplify an output voltage of the charge circuit in response to a sensing enable signal.

Abstract: An image sensing device includes a pixel array suitable for generating a pixel signal, a tracking circuit suitable for generating a tracking signal whose voltage level gradually converges to a voltage level of the pixel signal by selectively using any one of a first convergence voltage where an amount of decrease in a voltage level gradually decreases during a plurality of tracking periods and a second convergence voltage where an amount of increase in a voltage level gradually decreases during the tracking periods for each tracking period, based on the pixel signal and first and second comparison result signals, and a signal generation circuit suitable for generating the first and second comparison result signals and an image signal based on the pixel signal and the tracking signal.

Abstract: A formaldehyde detecting apparatus includes a formaldehyde sensor configured to measure concentration of formaldehyde in air; a printed circuit board on which the formaldehyde sensor is disposed, the printed circuit board including a signal processor configured to process a signal output from the formaldehyde sensor; a fixing member disposed on the printed circuit board, the fixing member configured to fix the formaldehyde sensor, wherein the fixing member prevents the formaldehyde sensor from oscillating with respect to the printed circuit board by external vibration; and a power supply configured to supply a voltage capable of stabilizing an output signal to the signal processor.

Abstract: An electronic device includes a driving circuit suitable for driving an output node with an input voltage signal based on a control voltage applied to a control node, a boost circuit suitable for boosting voltage of the output node based on an output boost signal, and a compensating circuit suitable for applying the control voltage to the control node based on control signals to compensate for voltage drop caused by the driving circuit.

Abstract: A comparison device includes; a comparison block suitable for comparing a pixel signal with a reference voltage including a ramp-up signal and a ramp-down signal; a correlated double sampling (CDS) block suitable for performing a correlated double sampling operation on the pixel signal; a first switch suitable for selectively inputting the ramp-up signal as the reference voltage based on a first switch control signal; a second switch suitable for selectively inputting the ramp-down signal as the reference voltage based on a second switch control signal; and a feedback control unit suitable for generating the first and second switch control signals based on a result of the comparison during an initialization operation.

Abstract: An amplification circuit includes a first amplification block suitable for primarily amplifying a voltage difference between a first voltage and a second voltage corresponding to a first input current and a second input current, respectively, and a second amplification block suitable for secondarily amplifying the voltage difference between the first and second voltages to generate an amplification signal.

Abstract: A clock generator and an image sensor including the same are disclosed, which relate to technology for improving an operation speed of a voltage controlled oscillator. The clock generator includes a phase frequency detector (PFD) configured to detect a phase difference between a clock signal and a reference clock signal, a voltage converter configured to adjust a current corresponding to a voltage level in response to an output signal of the phase frequency detector (PFD), a filter circuit configured to generate a control voltage by filtering an output signal of the voltage converter, a voltage pumping circuit configured to pump an output voltage of the voltage converter, and provide the control voltage having a pumped voltage level, and a voltage controlled oscillator configured to generate a clock signal, an oscillation frequency of which is adjusted, in response to the control voltage.

Abstract: Disclosed are devices, systems and methods for reading out data at a high speed. The data output circuit includes a line memory configured to latch a digital signal, and output the latched digital signal to a pair of column lines in response to an output control signal, a precharge circuit configured to precharge the pair of column lines with a first precharge voltage level in response to a first precharge signal, a charge circuit configured to charge the pair of column lines with a voltage, a charge controller configured to charge the charge circuit with a second precharge voltage level in response to a second precharge signal, and a sense amplifier configured to amplify an output voltage of the charge circuit in response to a sensing enable signal.

Abstract: An antenna device for an electronic device for wireless communication is provided. The antenna device includes an antenna area connected to a feeding line and a ground line, such that the antenna area is configured to transmit/receive a signal of a first frequency band; and a branching feeding pattern branching from the feeding line and connected to one side of the antenna area, such that the branching feeding pattern is configured to enable the antenna area to transmit/receive a signal of a second frequency band.

Abstract: A ramp signal generator and an image sensor including the same are disclosed, which relate to technology for allowing a ramp signal generator to reduce voltage drop and current deviation affected by fabrication change. The ramp signal generator includes a ramp array including a plurality of ramp circuits arranged in row and column directions and selectively activated by ramp control signals, and configured to generate an output current by summing currents from selectively activated ramp circuits, and a current-to-voltage converter configured to convert the output current into a voltage value to output the voltage value as a ramp signal. Each of the ramp circuits initializes a voltage of a charge node in response to an initialization voltage, and generates the output current based on charges in a charge transistor charged through the charge node when receiving a drive voltage.

Abstract: An analog-to-digital conversion (ADC) circuit and a CMOS image sensor are disclosed. The ADC circuit includes a first column line configured to receive a first pixel signal from a first pixel, a second column line configured to receive a second pixel signal from a second pixel located adjacent to the first pixel, and a correlated double sampling (CDS) circuit configured to perform a CDS operation by comparing the first pixel signal, the second pixel signal, a first ramp signal, and a second ramp signal with one another. The CDS circuit may perform the CDS operation on the first pixel signal by selecting the first column line in a first operation period, and may perform the CDS operation on the first pixel signal and the second pixel signal by selecting the first column line and the second column line in a second operation period.

Abstract: A reference voltage generator may include: a differential amplification circuit including a positive input terminal coupled to a supply voltage to receive a voltage from the supply voltage and a negative input terminal coupled to an output terminal of the differential amplification circuit, the differential amplification circuit structured to perform a reset operation based on the received voltage from the supply voltage during a reset period and amplify a difference between a first initial voltage applied to the positive input terminal and a second initial voltage applied to the negative input terminal during a reference voltage generation period; and first and second voltage storage circuits coupled to the positive input terminal and the negative input terminal, respectively, and structured to store the first initial voltage and the second initial voltage, respectively.

Abstract: An image sensing device includes a pixel array suitable for generating a pixel signal, a tracking circuit suitable for generating a tracking signal whose voltage level gradually converges to a voltage level of the pixel signal by selectively using any one of a first convergence voltage where an amount of decrease in a voltage level gradually decreases during a plurality of tracking periods and a second convergence voltage where an amount of increase in a voltage level gradually decreases during the tracking periods for each tracking period, based on the pixel signal and first and second comparison result signals, and a signal generation circuit suitable for generating the first and second comparison result signals and an image signal based on the pixel signal and the tracking signal.

Abstract: A unit pixel apparatus includes a unit pixel suitable for supporting initialization an output node and outputting a pixel signal corresponding to incident light through the output node; and a switching block suitable for initializing the output node and deciding an initial voltage of the output node.

Abstract: This technology relates a unit pixel and an operating method thereof and a CMOS image sensor using the same. The unit pixel may include a photo sensitive device; a reset transistor; a selection transistor including a gate terminal, a first terminal and a second terminal, suitable for operating in response to a selection control signal applied to the gate terminal and outputting a voltage applied to the first terminal to a first terminal of the reset transistor through the second terminal; and a drive transistor including a first terminal coupled to the second terminal of the selection transistor, a second terminal and a gate terminal, suitable for generating an electrical signal corresponding to charges accumulated in a floating diffusion node coupled to the gate terminal, and outputting the electrical signal as a pixel signal through the second terminal.

Abstract: An image sensing device includes: a first source ramp voltage generation circuit suitable for generating a first source ramp voltage that is adjusted a first voltage unit for each first period, a second source ramp voltage generation circuit suitable for generating a second source ramp voltage that is adjusted the first voltage unit for each first period and has a set voltage difference from the first source ramp voltage, and a ramp voltage generation circuit suitable for generating a ramp voltage that is adjusted a second voltage unit that is less than the first voltage unit for each second period that is shorter than the first period based on the first and second source ramp voltages and a plurality of first control signals.

Abstract: An electronic device includes a first driver suitable for driving an output node with a first voltage based on an activation control signal for a first driving period, a second driver suitable for driving the output node with a second voltage based on a deactivation control signal for a second driving period, a first booster suitable for boosting voltage of the output node based on an output boost signal for a first boost period, a third driver suitable for driving a control node with a second blocking control signal based on a first blocking control signal for a third driving period, and a blocker suitable for selectively blocking between the first driver and the output node based on a control voltage applied to the control node.

Abstract: An electronic device includes a driving circuit suitable for driving an output node with an input voltage signal based on a control voltage applied to a control node, a boost circuit suitable for boosting voltage of the output node based on an output boost signal, and a compensating circuit suitable for applying the control voltage to the control node based on control signals to compensate for voltage drop caused by the driving circuit.