A 2.5mW 12MHz-BW 69dB SNDR Passive Bandpass ΔΣ ADC with Highpass Noise-Shaping SAR Quantizers
- Resource Type
- Conference
- Authors
- Oh, Sein; Park, Seunga; Jung, Yoontae; Koo, Jimin; Cho, Donghee; Ha, Sohmyung; Je, Minkyu
- Source
- 2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) VLSI Technology and Circuits (VLSI Technology and Circuits), 2023 IEEE Symposium on. :1-2 Jun, 2023
- Subject
- Components, Circuits, Devices and Systems
Power measurement
Power demand
Frequency modulation
Passive filters
Resonator filters
Resonant frequency
Prototypes
- Language
- ISSN
- 2158-9682
A 4 th -order passive bandpass $\Delta \Sigma$ modulator (BPDSM) using a 2- path transformation structure is presented. The proposed BPDSM replaces a power-hungry resonator with a z-to-z 2 -transformed passive loop filter. The prototype bandpass $\Delta \Sigma$ ADC provides a wide intermediate frequency (IF) range of 1.25MHz to 60MHz. The measured SNDR is 69dB with a power consumption of 2.5mW at 12MHz bandwidth when its highest sampling rate is 240MS/s.