TY - GEN
T1 - A digital-to-resistance converter with an automatic offset calibration method for evaluating dynamic performance of resistive sensor readout circuits
AU - Nakagawa, Shuya
AU - Miyazaki, Takumi
AU - Ishikuro, Hiroki
N1 - Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5
Y1 - 2020/5
N2 - In this paper, a digital-to-resistance converter (DRC) with automatic offset calibration circuits is proposed. This circuit is used to evaluate the dynamic performance of resistive sensor readout circuits. The proposed DRC consists of a digital-to-analog converter, an analog multiplier, a fixed-value reference resistor, and current sources. A wide-range resistance changing at high frequency is achieved with the proposed DRC. In order to minimize the resistance error caused by the offset voltage of op-amps, an automatic offset calibration method is proposed. This developed prototype DRC achieved 96.3 dB dynamic range, 56.1 dB SNDR at 10kHz, and a maximum operating frequency is 100kHz.
AB - In this paper, a digital-to-resistance converter (DRC) with automatic offset calibration circuits is proposed. This circuit is used to evaluate the dynamic performance of resistive sensor readout circuits. The proposed DRC consists of a digital-to-analog converter, an analog multiplier, a fixed-value reference resistor, and current sources. A wide-range resistance changing at high frequency is achieved with the proposed DRC. In order to minimize the resistance error caused by the offset voltage of op-amps, an automatic offset calibration method is proposed. This developed prototype DRC achieved 96.3 dB dynamic range, 56.1 dB SNDR at 10kHz, and a maximum operating frequency is 100kHz.
KW - Digital-to-Resistance Converter
KW - IoT
KW - Sensor Interface
UR - http://www.scopus.com/inward/record.url?scp=85088320786&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85088320786&partnerID=8YFLogxK
U2 - 10.1109/I2MTC43012.2020.9128478
DO - 10.1109/I2MTC43012.2020.9128478
M3 - Conference contribution
AN - SCOPUS:85088320786
T3 - I2MTC 2020 - International Instrumentation and Measurement Technology Conference, Proceedings
BT - I2MTC 2020 - International Instrumentation and Measurement Technology Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2020
Y2 - 25 May 2020 through 29 May 2020
ER -