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Variable impedance circuit, variable gain differential amplifier, multiplier, high-frequency circuit and differential distributed amplifier
Variable impedance circuit, variable gain differential amplifier, multiplier, high-frequency circuit and differential distributed amplifier
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机译:可变阻抗电路,可变增益差分放大器,乘法器,高频电路和差分分布式放大器
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摘要
The collectors of transistors are connected via respective resistances to a power supply terminal receiving a power supply voltage. The emitters of the transistors are connected to a ground terminal via respective resistances. A shunt resistance, a FET, and a shunt resistance are connected in series between nodes connected to the respective emitters of the transistors. The gate of the FET is connected via a resistance to a control terminal receiving a control voltage. The shunt resistances and FET form a variable resistance circuit.
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