Abstract
An ultra low power second-order switched-capacitor (SC) sigma-delta (ΣΔ) modulator is presented. Using of a class-C inverter instead of an operational transconductance amplifier (OTA) enables the SC SA modulator to achieve sub-μW power consumption. The proposed modulator has been implemented using a 0.35-μm CMOS process. The measured peak SNR of the modulator is 56 dB in a 3-kHz signal bandwidth with sampling frequency of 200 kHz. Its dynamic range is approximately 56 dB and the power consumption is only 0.8 μW with a 1-V power supply.
| Original language | English |
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| Pages (from-to) | I1152-I1155 |
| Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
| Volume | 1 |
| Publication status | Published - 2004 |
| Event | 2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada Duration: 2004 May 23 → 2004 May 26 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering