Modified recycling folded cascode OTA with enhancement in transconductance and output impedance

Sudheer Raja VENISHETTY; Kumaravel SUNDARAM

Makale detayları

Modified recycling folded cascode OTA with enhancement in transconductance and output impedance

Yazarlar:

Sudheer Raja VENISHETTY | Kumaravel SUNDARAM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2019 Vol.27 Issue 6, pp.4472-4485

Belge Tipi:

Makale

Yayın Tarihi:

11/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000733489

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

A modified recycling folded cascode (MRFC) operational transconductance amplifier (OTA) for achieving high DC gain, slew rate, and unity gain bandwidth (UGB) is proposed in this paper. Positive feedback is adopted to enhance DC gain and unity gain bandwidth. The proposed MRFC OTA is compared with conventional folded cascode (FC), recycling folded cascode (RFC), and other OTAs existing in the literature. Three OTAs, FC, RFC, and MRFC, are realized and implemented using the UMC 180 nm CMOS process for the same bias current of 300 μμ\muA. The designs are simulated in the Cadence Spectre Environment. From the simulation results, it may be noted that the proposed amplifier achieves a gain of 76.24 dB and unity gain bandwidth of 74.7 MHz with an input referred noise and slew rate of 139.2 μVrmsμVrms\mu V_{rms} and 64.05 V/μμ\mus respectively. The proposed amplifier occupies an area of 2760 μm2μm2\mu m^{2}.

Makale detayları

Modified recycling folded cascode OTA with enhancement in transconductance and output impedance

Yazarlar: Sudheer Raja VENISHETTY | Kumaravel SUNDARAM

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2019 Vol.27 Issue 6, pp.4472-4485

Belge Tipi: Makale

Yayın Tarihi: 11/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000733489

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Sudheer Raja VENISHETTY | Kumaravel SUNDARAM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2019 Vol.27 Issue 6, pp.4472-4485

Belge Tipi:

Makale

Yayın Tarihi:

11/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000733489

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632