Abstract
In this paper, several techniques for the design of high-performance fully differential continuous-time filters are introduced. These techniques are used for the design of a fourth-order doubly terminated low-pass filter. The filter is based on operational transconductance amplifier (OTA) resistor-capacitor (RC) building blocks. For the voltage-to-current transducer a linearized OTA with a novel common-mode feedback (CMFB) system is employed. The CMFB takes advantage of the direct connection of the OTA's. For the control of the filter ripple, a low-distortion floating resistor with low sensitivity to transistor mismatches is used
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