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Author:

Peng, Bei (Peng, Bei.) | Huang, Guanzhong (Huang, Guanzhong.) | Li, Hao (Li, Hao.) | Wan, Peiyuan (Wan, Peiyuan.) | Lin, Pingfen (Lin, Pingfen.)

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EI Scopus

Abstract:

A 1.2 V 12-bit 150 MS/s pipelined ADC with low-gain op-amps (DC gain ≈15 dB) is fabricated in a 65-nm CMOS process. The proposed 5-transistor single stage op-amp enables simple analog circuit to achieve low power and high speed. Digital background calibration technique is exploited to compensate the inter-stage gain error, capacitor mismatch and op-amp nonlinearity. The ADC achieves a peak SNDR of 68 dB and 67 dB and a peak SFDR of 85 dB and 81 dB with 6 MHz input at 100 MS/s and 150 MS/s, respectively. The ADC analog core occupies 0.78 mm2 and dissipates 36 mW at 150 MHz sampling rate from a 1.2-V supply. The digital calibration circuit occupies 0.21 mm2 and dissipates 12 mW at a clock frequency of 150MHz by estimation with software. The ADC shows a FoM of 194 fJ/conv-step at 150-MS/s from a 1.2-V supply. © 2011 IEEE.

Keyword:

Analog to digital conversion Frequency estimation Calibration Operational amplifiers Low power electronics CMOS integrated circuits Integrated circuit manufacture Pipelines

Author Community:

  • [ 1 ] [Peng, Bei]Beijing University of Technology, Beijing, China
  • [ 2 ] [Huang, Guanzhong]Beijing University of Technology, Beijing, China
  • [ 3 ] [Li, Hao]University of Science and Technology of China, Hefei, China
  • [ 4 ] [Wan, Peiyuan]Beijing University of Technology, Beijing, China
  • [ 5 ] [Lin, Pingfen]Beijing University of Technology, Beijing, China

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ISSN: 0886-5930

Year: 2011

Language: English

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 17

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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