Design of a low-power CMOS operational amplifier with common-mode feedback   for pipeline analog-to-digital converter applications

SOHIFUL ANUAR  ZAINOL MURAD; IZATUL SYAFINA ISHAK; MOHD FAIRUS AHMAD; SHAIFUL NIZAM MOHYAR

Makale detayları

Design of a low-power CMOS operational amplifier with common-mode feedback for pipeline analog-to-digital converter applications

Yazarlar:

SOHIFUL ANUAR ZAINOL MURAD | IZATUL SYAFINA ISHAK | MOHD FAIRUS AHMAD | SHAIFUL NIZAM MOHYAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2017 Vol.25 Issue 3, pp.1908-1921

Belge Tipi:

Makale

Yayın Tarihi:

5/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000740801

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

This paper proposes a design of a low-power operational   amplifier (op-amp) for pipeline analog-to-digital converter (ADC)   applications using a 0.13-μμ\mu m CMOS process. The folded-cascode topology   with NMOS input types is employed for the op-amp design due to a larger   output gain compared to PMOS input types. Furthermore, the op-amp is   designed with a double detection structure of a common-mode feedback circuit   to provide stable feedback voltage. The simulation results show that the   proposed op-amp achieved a gain of 64.5 dB and a unity gain bandwidth of   695.1 MHz with a low power consumption of 0.14 mW. In addition, by applying   ±±\pm 1.2 V of input voltage, the output voltage generated by the proposed   op-amp design remains at 1.2 V with a constant feedback voltage of 1.3 V.   Moreover, the proposed circuit was implemented and simulated successfully in   a 1.5-bit per stage pipeline ADC.

Makale detayları

Design of a low-power CMOS operational amplifier with common-mode feedback for pipeline analog-to-digital converter applications

Yazarlar: SOHIFUL ANUAR ZAINOL MURAD | IZATUL SYAFINA ISHAK | MOHD FAIRUS AHMAD | SHAIFUL NIZAM MOHYAR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2017 Vol.25 Issue 3, pp.1908-1921

Belge Tipi: Makale

Yayın Tarihi: 5/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000740801

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

SOHIFUL ANUAR ZAINOL MURAD | IZATUL SYAFINA ISHAK | MOHD FAIRUS AHMAD | SHAIFUL NIZAM MOHYAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2017 Vol.25 Issue 3, pp.1908-1921

Belge Tipi:

Makale

Yayın Tarihi:

5/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000740801

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632