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Which of the following is not a characteristic of IC implementation of quadrature sampling ADC?

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Which of the following is not a characteristic of IC implementation of quadrature sampling ADC?

(a) Thermal difference is less than lumped components

(b) Matching of passive component on IC substrate is easy

(c) Matching of passive component on IC substrate is difficult

(d) Thermal difference among filters is not large

The question was posed to me in homework.

My enquiry is from ADC Tradeoffs topic in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio

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Correct option is (c) Matching of passive component on IC substrate is difficult

The explanation: The integrated circuit implementation of quadrature sampling ADC is effective because of short signal paths, easy matching of passive components on IC substrate and low thermal difference among filters.

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