Name
Title | ||
|---|---|---|
A 3.9μW, 81.3dB SNDR, DC-coupled, Time-based Neural Recording IC with Degeneration R-DAC for Bidirectional Neural Interface in 180nm CMOS |
Abstract | ||
|---|---|---|
This paper presents a 5-bit VCO-based neural recording IC, which directly quantizes the input signal and achieves a large dynamic range (DR) to process the small-amplitude neural signal in the presence of the large-amplitude stimulation artifact (SA). A feedback-controlled source degeneration is applied to the input transconductor circuit (Gm,in) by using a resistor DAC (R-DAC). It mitigates the circuit nonlinearity, resulting in a large signal-to-noise-and-distortion ratio (SNDR) and a high input impedance (Z
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">in</sub>
). The implemented neural recording IC achieves 813dB SNDR over 200Hz signal bandwidth and 200mV
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">PP</sub>
maximum allowable input range while consuming 3.9μW per channel. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/ASSCC.2018.8579284 | 2018 IEEE Asian Solid-State Circuits Conference (A-SSCC) |
Keywords | Field | DocType |
degeneration R-DAC,bidirectional neural interface,5-bit VCO-based neural recording IC,small-amplitude neural signal,large-amplitude stimulation artifact,feedback-controlled source degeneration,input transconductor circuit,resistor DAC,high input impedance,PP maximum allowable input range,time-based neural recording IC,neural recording IC,power 3.9 muW,noise figure 81.3 dB,size 180.0 nm,noise figure 813.0 dB,frequency 200.0 Hz | Direct coupling,Computer science,Communication channel,Voltage-controlled oscillator,Electronic engineering,CMOS,Bandwidth (signal processing),Resistor,Input impedance,Integrated circuit | Conference |
ISBN | Citations | PageRank |
978-1-5386-6414-8 | 0 | 0.34 |
References | Authors | |
0 | 10 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hyuntak Jeon | 1 | 9 | 2.23 |
| Jun-Suk Bang | 2 | 19 | 5.08 |
| Yoontae Jung | 3 | 8 | 2.16 |
| Taeju Lee | 4 | 4 | 1.46 |
| Yeseul Jeon | 5 | 0 | 1.01 |
| Seok-Tae Koh | 6 | 0 | 2.70 |
| Jaesuk Choi | 7 | 0 | 1.69 |
| Doojin Jang | 8 | 0 | 1.69 |
| Soonyoung Hong | 9 | 0 | 0.68 |
| Minkyu Je | 10 | 333 | 58.17 |