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This paper reports the design and optimization of a standard cell library in 0.18µm CMOS, together with the analysis on voltage scaling and transistor sizing for ultra-low power biomedical applications. By simulating with a 8-bit 4-tap FIR filter at 0.6V clocked 100kHz, the design achieves 18.6× and 1.55× lower power consumption comparing to a commercial standard cell library working at nominal voltage...
Most biopotential readout front-ends rely on the - lowpass filter (LPF) for forefront signal conditioning. A small realizes a large time constant ( ) suitable for ultra-low-cutoff filtering, saving both power and area. Yet, the noise and linearity can be compromised, given that each cell can involve one or several noisy and nonlinear - conversions...
This paper describes a high-dynamic-range 2.4 Hz-to-10 kHz wide-range tunable 5th-order Butterworth lowpass filter for biomedical applications. A differential gm-C topology in conjunction with a subthreshold-biased wide-gm-range OTA realizes efficiently a wide frequency tuning capability. For capacitance savings with consequent silicon area reduction, a merged use of floating real capacitor and grounded...
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