Abstract | ||
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We report an 8-channel array of low-noise (30.3fA/root Hz) current sensing front-ends with on-chip sensors for label-free, restriction-free biosensing. The analog front-end (AFE) consists of a 1st-order continuous-time delta-sigma (CT-Delta Sigma) modulator that achieves 123fA sensitivity and 139dB cross-scale dynamic range over a 10Hz bandwidth while consuming 50 mu W and occupying 0.11mm(2) per channel. A digital IIR filter and a tri-level pulse width modulated (PWM) current-steering DAC are used to realize the equivalent performance of a multi-bit Delta Sigma in an area/power efficient manner. This platform was used to observe protein-ligand interactions in real-time. |
Year | DOI | Venue |
---|---|---|
2019 | 10.23919/VLSIC.2019.8777980 | 2019 SYMPOSIUM ON VLSI CIRCUITS |
Field | DocType | Citations |
Front and back ends,System on a chip,Dynamic range,Computer science,Infinite impulse response,Pulse-width modulation,Communication channel,Electronic engineering,Modulation,Bandwidth (signal processing) | Conference | 0 |
PageRank | References | Authors |
0.34 | 0 | 5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Da Ying | 1 | 0 | 0.34 |
Ping-Wei Chen | 2 | 0 | 0.34 |
Chi Tseng | 3 | 0 | 0.34 |
Yu-Hwa Lo | 4 | 1 | 1.37 |
Hall, D.A. | 5 | 1 | 1.98 |