Version 1
: Received: 2 March 2017 / Approved: 2 March 2017 / Online: 2 March 2017 (08:37:48 CET)
How to cite:
Niu, Y.; Zhang, Y.; Zhang, Z.; Fan, M.; Lu, W.; Chen, Z. A 14-bit Hybrid Incremental Sigma-Delta/Cyclic ADC for X-ray Linear Array Sensor. Preprints2017, 2017030016. https://doi.org/10.20944/preprints201703.0016.v1
Niu, Y.; Zhang, Y.; Zhang, Z.; Fan, M.; Lu, W.; Chen, Z. A 14-bit Hybrid Incremental Sigma-Delta/Cyclic ADC for X-ray Linear Array Sensor. Preprints 2017, 2017030016. https://doi.org/10.20944/preprints201703.0016.v1
Niu, Y.; Zhang, Y.; Zhang, Z.; Fan, M.; Lu, W.; Chen, Z. A 14-bit Hybrid Incremental Sigma-Delta/Cyclic ADC for X-ray Linear Array Sensor. Preprints2017, 2017030016. https://doi.org/10.20944/preprints201703.0016.v1
APA Style
Niu, Y., Zhang, Y., Zhang, Z., Fan, M., Lu, W., & Chen, Z. (2017). A 14-bit Hybrid Incremental Sigma-Delta/Cyclic ADC for X-ray Linear Array Sensor. Preprints. https://doi.org/10.20944/preprints201703.0016.v1
Chicago/Turabian Style
Niu, Y., Wengao Lu and Zhongjian Chen. 2017 "A 14-bit Hybrid Incremental Sigma-Delta/Cyclic ADC for X-ray Linear Array Sensor" Preprints. https://doi.org/10.20944/preprints201703.0016.v1
Abstract
This paper presents a two-stage ADC based on pseudo-differential operational transconductance amplifier (OTA), which is designed for the readout circuit of X-ray linear array sensor. This hybrid ADC employs an incremental sigma-delta ADC and a cyclic ADC, achieving a good trade-off between accuracy and conversion speed. The two stages share the same hardware to reduce power consumption and die area. A common-mood feedback module is used to suppress the influence of charge injection, and the effectiveness is demonstrated by detailed theoretical analysis. A test chip of 14-bit ADC is fabricated in 0.35μm CMOS technology. The measured root mean square (RMS) value of DNL is 0.254 LSB, and the maximum value of INL is -0.776/+1.56 LSB. The measured effective number of bits (ENOB) is 13.43 bits.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
