Low-Power Area-Efficient 8-bit Coarse-Fine Resistor-String DAC

  • Venkatesh Kommangunta
  • , Khuram Shehzad
  • , Deeksha Verma
  • , Pervesh Kumar
  • , Kang Yoon Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents low-power area efficient 8-bit 500 kS/s Coarse-Fine Resistor-String Digital to Analog Converter (CFRS-DAC). Coarse-Fine structure in the proposed DAC reduces unit resistors as compare with the conventional R-string DAC. Proposed DAC reduces unit resistors to 28 % and 70 % of inverted-ladder DAC and Conversional R-string DAC, respectively. Class-B Opamp buffer is used to reduce the offset errors and power consumption. The proposed structure shows an Effective Number of Bits (ENOB) of 7.917 bits, Signal to Noise Ratio (SNR) of 49.42 dB, and Spurious Free Dynamic Range (SFDR) of 56.79 dB at post-layout simulation level. Static performance results shows that Max. Differential Nonlinearity (DNL) is 0.004 LSB and Max. Integral Nonlinearity (INL) is 0.024 LSB. It consumes 65.23 μ W with supply voltage of 3.3 V and it has an active area of 0.0297 mm2.

Original languageEnglish
Title of host publication2020 IEEE International Conference on Consumer Electronics - Asia, ICCE-Asia 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728161648
DOIs
StatePublished - 1 Nov 2020
Externally publishedYes
Event2020 IEEE International Conference on Consumer Electronics - Asia, ICCE-Asia 2020 - Seoul, Korea, Republic of
Duration: 1 Nov 20203 Nov 2020

Publication series

Name2020 IEEE International Conference on Consumer Electronics - Asia, ICCE-Asia 2020

Conference

Conference2020 IEEE International Conference on Consumer Electronics - Asia, ICCE-Asia 2020
Country/TerritoryKorea, Republic of
CitySeoul
Period1/11/203/11/20

Keywords

  • buffer
  • Coarse-Fine
  • offset error
  • Resistor-String
  • static performance
  • unit resistor

Fingerprint

Dive into the research topics of 'Low-Power Area-Efficient 8-bit Coarse-Fine Resistor-String DAC'. Together they form a unique fingerprint.

Cite this