Assume that the switched capacitor realization of the first-order A/D modulator in Fig. 18.9 introduces thermal noise at a rms input-referred level of . Using a one-bit quantizer, and allowing equal...

Assume that the switched capacitor realization of the first-order A/D modulator in Fig. 18.9 introduces thermal noise at a rms input-referred level of . Using a one-bit quantizer, and allowing equal noise contributions from the thermal noise and quantization noise, find the required value of (at a temperature 300 K) and of in order to achieve an SNR of 90 dB.