摘要:
Highly stable glycoprotein derivative compositions showing little tendency to decrease in physiological activity thereof are produced by reacting an aldehyde-group-containing glycoprotein (A) with an SH- or OH-containing material (B), and if necessary further reacting the resulting product with an SH- or OH-containing material of the same or another kind. They are used as diagnostic reagents or hydrolytic catalysts.
摘要:
Provided is a constant current circuit and a reference voltage circuit with improved line regulation without needing a start-up circuit. The constant current circuit includes: a constant current generation circuit including NMOS transistors and a resistor; a current mirror circuit including a pair of depletion mode NMOS transistors, for allowing a current of the constant current generation circuit to flow; and a feedback circuit for maintaining constant voltages of source terminals of the pair of depletion mode NMOS transistors.
摘要:
An output circuit has a smaller area and restrains outputs from becoming unstable even if a power supply voltage is lower than an operating voltage. A supply terminal of an inverter circuit is provided with switch circuit, and the switch circuit stops the operation of the inverter circuit when the power supply voltage is lower than the operating voltage of the circuit. Further, the output terminal of the inverter circuit is provided with a current source to fix the output to the power supply voltage when the operation of the inverter circuit is stopped.
摘要:
A switching regulator has a soft start circuit having a current source, a capacitor, and a MOS transistor connected between the current source and the capacitor for undergoing controlled operations between ON/OFF states to control a time period required for soft start of the switching regulator.
摘要:
To provide a voltage detecting circuit, in which a leakage current of an output transistor is suppressed to reduce a consumed current without reducing a driving ability of the output transistor. The voltage detecting circuit is configured so as to control a voltage of a back gate of the output transistor in accordance with whether the voltage detecting circuit is in a detection state and in a release state.
摘要:
An immunoassay method which measures test samples at high concentration without dilution is disclosed. Said immunoassay comprises the steps of: (1) reacting a material (A) to be measured, an immobilized component (B) which binds specifically to the material (A), and a labelled component selected from the group consisting of (i) a labelled component (C) which binds specifically to the material (A) and (ii) a labelled component (A) thereby obtaining an immuno-complex and (2) detecting or measuring the labelling fragment, wherein the reaction of the material (A) with the immobilized (B) or the reaction of the material (A) with the immobilized (B) and the labelled component is carried out at a pH of 2-4.5.
摘要:
Provided is a voltage regulator having improved overshoot characteristics. In the voltage regulator, a current limiting circuit formed of, for example, a constant current source is provided in series to an output transistor, to thereby limit an output overcurrent. Further, a voltage limiting circuit formed of, for example, a diode is provided to an output terminal, to thereby limit an output voltage.
摘要:
Provided is a temperature sensor device operable at a lower voltage. The temperature sensor device detects temperature based on an output voltage of a forward voltage generator for generating a forward voltage of a PN junction. The forward voltage generator includes a level shift voltage generation circuit, and an output voltage of the temperature sensor device is given based on the forward voltage of the PN junction and a voltage of the level shift voltage generation circuit.
摘要:
Provided is a constant current circuit and a reference voltage circuit with improved line regulation without needing a start-up circuit. The constant current circuit includes: a constant current generation circuit including NMOS transistors and a resistor; a current mirror circuit including a pair of depletion mode NMOS transistors, for allowing a current of the constant current generation circuit to flow; and a feedback circuit for maintaining constant voltages of source terminals of the pair of depletion mode NMOS transistors.
摘要:
Provided is a detection circuit for monitoring a power supply voltage with a circuit configuration in which power consumption is reduced, and a sensor device including the detection circuit. A detection circuit (100) detects an input signal input thereto to output an output signal. An interrupt condition generating circuit (10a) directly detects a power supply voltage (VDD) supplied thereto from a power supply, and outputs an interrupt signal until the power supply voltage makes a transition to a predetermined voltage range. An interrupt condition reception circuit outputs, as an output signal, a given voltage without allowing an input signal (Vtemp) to be output until an interrupt caused by the interrupt signal is released, and outputs, as an output signal, the input signal by allowing the input signal to be output when the interrupt caused by the interrupt signal is released.