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A 0.9 V feed forward, op-amp shared MASH structure delta sigma modulator for low power sensor interface applications in 0.18 μm CMOS process is presented in this paper. A modified feed forward op-amp shared structure is implemented to reduce the integrators output swings. Due to opamp sharing, the power hungry adder, which constitutes a first challenge in conventional feed forward structures when...
This paper presents a comparative study of three low-noise amplifiers for neural recording applications. The topologies are thoroughly analysed in terms of area, power consumption and noise performance. Further, the theoretical results are confirmed by simulations of transistor-level implementations in a 0.13 μm CMOS technology at 1.2 V supply voltage.
This paper presents a comparative study of three low-noise amplifiers for neural recording applications. The topologies are thoroughly analysed in terms of area, power consumption and noise performance. Further, the theoretical results are confirmed by simulations of transistor-level implementations in a 0.13μm CMOS technology at 1.2V supply voltage.
Wireless environments, high data rates and increased digitization require A/D converters with high dynamic range and large bandwidth at the lowest possible power consumption. A fully flexible continuous-time (CT) Δ Σ with programmable bandwidth, resolution and power consumption in 1.2 V 90 nm CMOS is presented able to satisfy those demands. By introducing flexibility into the core building blocks,...
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