Name
Title | ||
|---|---|---|
An 8MHz 31.25kS/s Impedance-Monitoring IC Based on IF-Sampling Architecture with a Band-Pass Delta-Sigma ADC |
Abstract | ||
|---|---|---|
We present an impedance-monitoring IC achieving a wide frequency range (FR) and fast output data rate (ODR). The proposed IC support a wide FR with improved spectral density by down-converting the signal to the intermediate frequency (f
<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">IF</inf>
) in front of the instrumentation amplifier (IA) using the LO signal generated by a single-side-band (SSB) mixer. The proposed IF-sampling architecture does not require narrow-bandwidth (BW) low-pass filter (LPF), resulting in a fast ODR. A time-interleaved (TI) DFT is also employed to further improve the ODR. A band-pass delta-sigma ADC (BP-ΔΣ-ADC) with the auto-calibration and BP truncation is adopted to achieve the best noise performance at f
<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">IF</inf>
. The fabricated IC achieves 0.35Ω
<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">RMS</inf>
resolution in the FR from 4kHz to 8MHz with 122.1Hz BW while providing the ODR up to 31.25kS/s. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.23919/VLSICircuits52068.2021.9492406 | 2021 Symposium on VLSI Circuits |
Keywords | DocType | ISSN |
BP truncation,LO signal generation,instrumentation amplifier,down-converting signal,IC support,fast output data rate,wide frequency range,impedance-monitoring IC,BP-ΔΣ-ADC,band-pass delta-sigma ADC,time-interleaved DFT,fast ODR,narrow-bandwidth low-pass filter,IF-sampling architecture,single-side-band mixer,LO signal,intermediate frequency,improved spectral density,frequency 4.0 kHz to 8.0 MHz,bandwidth 122.1 Hz | Conference | 2158-5601 |
ISBN | Citations | PageRank |
978-1-6654-4766-9 | 1 | 0.34 |
References | Authors | |
0 | 12 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Soon-Jae Kweon | 1 | 1 | 1.02 |
| Joonho Gil | 2 | 1 | 0.34 |
| Chulhyun Park | 3 | 1 | 0.34 |
| Sein Oh | 4 | 1 | 0.68 |
| Yoontae Jung | 5 | 1 | 1.36 |
| Injun Choi | 6 | 1 | 0.68 |
| Song-I Cheon | 7 | 2 | 2.04 |
| Hung Phan Dang | 8 | 1 | 0.34 |
| Ja-Hyuck Koo | 9 | 1 | 0.34 |
| Geunhoe Kim | 10 | 1 | 0.34 |
| Sohmyung Ha | 11 | 3 | 0.69 |
| Minkyu Je | 12 | 333 | 58.17 |