| 摘要 |
A charge transfer amplifier that performs amplification without a selective coupling to a precharge reference voltage. In lieu of the selective precharge coupling, the drain of the PMOS transistor is selectively coupled to Vss during the reset and precharge phases. In addition, the drain of the NMOS transistor is selectively coupled to Vss during the reset phase, and is selectively coupled to Vdd during the precharge phase. The drain of the PMOS transistor is capacitively coupled through a first intermediate capacitor to the output terminal of the charge transfer amplifier. The drain of the NMOS transistor is capacitively coupled through a second intermediate capacitor to the output terminal. During the amplify phase, the drains of the NMOS and PMOS transistor are permitted to float except for any charge flow through the respective transistor.
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