| 摘要 |
The amplifier has analog and digital function, and consumes less power. The amplifier comprises a bias circuit (1) including resistor (R1,R2); transistors (Q1,Q2) and a CMOS transistor (M1) for providing bias current through CMOS transistors (M4,M5,M6), an input unit (2) comprising transistors (Q3-Q6) and CMOS transistors (M2-M4) for receiving input signal (IN1,IN2), an amplifier unit (3) for amplifying the output signal of the input unit (2), and output unit (4) formed as AB amplifier for improving output characteristics of the output signal of the amplifier unit (3).
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