Abstract:
클럭 버퍼는 기준 전압 생성부, 증폭기, 전류 미러부, 보상부 및 클럭부를 포함한다. 기준 전압 생성부는 기준 전압을 생성하여 제공한다. 증폭기는 기준 전압과 피드백 전압에 기초하여 증폭 전압을 발생한다. 전류 미러부는 증폭 전압 및 보상 전류에 기초하여 피드백 전압 및 바이어스 전압을 발생한다. 보상부는 피드백 전압에 기초하여 동작 온도가 증가할수록 증가하는 보상 전류를 발생한다. 클럭부는 바이어스 전압에 기초하여 입력 클럭을 버퍼링하여 출력 클럭을 발생한다. 전류 모드 로직(CML(Current Mode Logic)) 버퍼는 동작 온도가 증가함에 따라 클럭 딜레이가 증가하고, 바이어스 전압이 증가함에 따라 클럭 딜레이가 감소하는 특성을 가지고 있다. 따라서 동작 온도가 증가함에 따라 바이어스 전압을 증가함으로써 전류 모드 로직(CML(Current Mode Logic)) 버퍼의 동작 온도에 따른 클럭 딜레이 민감도(Clock Delay Sensitivity)를 개선할 수 있다.
Abstract:
A high voltage of a nonvolatile semiconductor memory device receiving a first driving voltage and a second driving voltage from the outside according to an embodiment of the present invention includes a depletion mode NMOS transistor which switches the second driving voltage in response to an output signal which is fed back, at least one inverter which inverts an input signal into the level of a ground voltage or the first driving voltage, and a PMOS transistor which transmits the second driving voltage supplied from the depletion mode NMOS transistor to one end thereof as the output signal of the other end thereof in response to the output of at least one inverter. The output of at least one inverter is transmitted to a gate of the PMOS transistor.
Abstract:
PURPOSE: A high speed differential linear amplifier is provided to vary the gain and the linearity based on a controlling signal using a differential amplifying part. CONSTITUTION: An input signal and an inverted input signal are applied to a high speed differential linear amplifier. A differential amplifying part(100) outputs an output signal and an inverted output signal by amplifying the voltage difference of an input signal pair. A control voltage generating part(200) outputs a control voltage for controlling the gain of the differential amplifying part. The control voltage generating part obtains the output signal of the differential amplifying part.
Abstract:
A majority voter circuit, a data bus inversion circuit and a semiconductor device are provided to enable robust circuit design with reduced operation errors due to impedance mismatch with an external device by comparing an odd number of bits except a fixed number of bits in data. An input part is connected between a common node and each of a first node and a second node, and generates voltage difference between the first node and the second node by receiving data of an odd number of bits and inverted data of an odd number of bits. An amplification part is connected between a first power supply voltage and the first node and the second node, and senses and amplifies the voltage difference between the first node and the second node, and outputs a selection signal by performing majority voting by comparing the number of bits having "0" with the number of bits having "1".
Abstract:
A semiconductor integrated circuit is provided to reduce a power consumption and to increase a transmission speed of signals by reducing a swing width of an output voltage of a transmission circuit. In a semiconductor integrated circuit, a transmission circuit(10) and a receipt circuit(20) are prepared. A transmission cable(30) connects the transmission circuit(10) and the receipt circuit(20). The transmission circuit(10) comprises an inner circuit(11), a first voltage dividing circuit(12) coupled between a first power and the inner circuit(11), a second voltage dividing circuit(13) coupled between a second power and the inner circuit(11), a delay circuit(14) which delays an output signal of the inner circuit(11) for the predetermined time and generates a switching control signal, a first switching circuit(15) coupled between the first power and the inner circuit(11) and applies a switching in response to the switching control signal, and a second switching circuit(16) coupled between the second power and the inner circuit(11) and applies a switching in response to the switching control signal.