Abstract
A discrete-time, switched-capacitor, MASH 2-2 4th order ΣΔ modulator, clocked with frequency of 1 GHz, was designed in a 65 nm CMOS technology. This modulator uses passive integrators based on the ultra-incomplete settling (UIS) concept. Electrical simulations show that the modulator achieves a peak SNDR of 66.8 dB, a peak SNR of 67.7 dB, an ENOB of 10.8 bits and DR of 70dB for a signal with a bandwidth of 10 MHz, while dissipating 1.5 mW from a 1.1 V power supply voltage, indicating that, a FOM of 42.7 fJ/conv.-step can be reached.
Original language | English |
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Title of host publication | 2014 IEEE International Symposium on Circuits and Systems (ISCAS) |
Pages | 1344 - 1347 |
ISBN (Electronic) | 978-1-4799-3432-4 |
DOIs | |
Publication status | Published - 2014 |
Event | 2014 IEEE International Symposium on Circuits and Systems (ISCAS) - Duration: 1 Jan 2014 → … |
Conference
Conference | 2014 IEEE International Symposium on Circuits and Systems (ISCAS) |
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Period | 1/01/14 → … |
Keywords
- analog-to-digital (A/D) conversion
- Cascaded delta-sigma modulator
- MASH
- passive integrator
- passive SC filter