A low-power single-bit continuous-time δσ converter with 92.5 db dynamic range for biomedical applications
S Balagopal, V Saxena - Journal of Low Power Electronics and …, 2012 - mdpi.com
Journal of Low Power Electronics and Applications, 2012•mdpi.com
A third-order single-bit CT-ΔΣ modulator for generic biomedical applications is implemented
in a 0.15 µm FDSOI CMOS process. The overall power efficiency is attained by employing a
single-bit ΔΣ and a subthreshold FDSOI process. The loop-filter coefficients are determined
using a systematic design centering approach by accounting for the integrator non-idealities.
The single-bit CT-ΔΣ modulator consumes 110 µW power from a 1.5 V power supply when
clocked at 6.144 MHz. The simulation results for the modulator exhibit a dynamic range of …
in a 0.15 µm FDSOI CMOS process. The overall power efficiency is attained by employing a
single-bit ΔΣ and a subthreshold FDSOI process. The loop-filter coefficients are determined
using a systematic design centering approach by accounting for the integrator non-idealities.
The single-bit CT-ΔΣ modulator consumes 110 µW power from a 1.5 V power supply when
clocked at 6.144 MHz. The simulation results for the modulator exhibit a dynamic range of …
A third-order single-bit CT-ΔΣ modulator for generic biomedical applications is implemented in a 0.15 µm FDSOI CMOS process. The overall power efficiency is attained by employing a single-bit ΔΣ and a subthreshold FDSOI process. The loop-filter coefficients are determined using a systematic design centering approach by accounting for the integrator non-idealities. The single-bit CT-ΔΣ modulator consumes 110 µW power from a 1.5 V power supply when clocked at 6.144 MHz. The simulation results for the modulator exhibit a dynamic range of 94.4 dB and peak SNDR of 92.4 dB for 6 kHz signal bandwidth. The figure of merit (FoM) for the third-order, single-bit CT-ΔΣ modulator is 0.271 pJ/level.
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