Process Corner Analysis of 2-stage Op-Amp Using Low Supply Voltage Current Mirror

2018 ◽  
Author(s):  
Pallabee Biswas ◽  
Ashutosh Nandi
Keyword(s):  
Supply Voltage ◽  
Current Mirror ◽  
Op Amp ◽  
Low Supply Voltage

scholarly journals Current mismatch reduction in charge pumps using regulated current stealing-injecting transistors for PLLs

2021 ◽  
Vol 24 (1) ◽  
pp. 61
Author(s):  
Mohd Khairi Zulkalnain ◽  
Yan Chiew Wong
Keyword(s):  
Metal Oxide ◽  
Supply Voltage ◽  
Channel Length ◽  
Feedback Mechanism ◽  
Phase Locked Loops ◽  
Voltage Controlled Oscillator ◽  
Op Amp ◽  
Compensation Technique ◽  
A Charge ◽  
Low Supply Voltage

A charge pump for phase locked loops (PLL) with a novel current mismatch compensation technique is proposed. The proposed circuit uses a simple yet effective current stealing-injecting (CSI) technique and feedback to reduce mismatch between the negative-channel-metal-oxide (NMOS) and positive-channel-metal-oxide (PMOS) transistors. The current stealing transistor steals the current from a replica branch and mirrors it to the output where it is added to the output branch by the injecting transistor. A feedback mechanism is used to set the drain voltages of both branches to be equal and mitigate channel length modulation and ensure high accuracy. The proposed circuit was designed on Silterra 130nm technology and simulated using Cadence Spectre. The simulation results show that the proposed circuit yields a maximum of 0.107% and minimum of 0.00465% current mismatch while operating at a low supply voltage of 800mV for a range of 100mV to 700mV. The proposed design uses only one rail-to-rail op amp for compensating the mismatch and an addition of 4 transistors and utilizing 75% of the supply voltage for high voltage controlled oscillator (VCO) tuning range.

Design of a Rail-to-Rail Operational Amplifier with Low Supply Voltage and Low Power Dissipation

2013 ◽  
Vol 380-384 ◽  
pp. 3275-3278
Author(s):  
Zhan Peng Jiang ◽  
Rui Xu ◽  
Hai Huang ◽  
Chang Chun Dong
Keyword(s):  
Power Dissipation ◽  
Operational Amplifier ◽  
Supply Voltage ◽  
High Gain ◽  
Op Amp ◽  
Rail To Rail ◽  
Dc Gain ◽  
Low Power Dissipation ◽  
Static Power ◽  
Low Supply Voltage

An rail-to-rail operational amplifier is presented in this paper, which is designed by with two op amp, the first level of the structure is the complementary differential structure which will providing input for the operational amplifier, the second level is designed with the structure of folding cascode to get a high gain. The operational amplifier is designed with the TSMC 0.35u m3.3VCMOS mixed analog-digital technology library. The simulated results show that the operational amplifier has a DC gain of 110dB,a GBW of 9.5MHz,a static power dissipation of 0.95mW,a phase margin of 73°,a voltage slew rate of 8.2V/μS,an input and output range of 0-3.3V,when operating at 3.3V power supply and a 20pF output load.

Low supply voltage high speed CMOS current mirror for analog design

2007 ◽  
Author(s):  
Houda Bdiri Gabbouj ◽  
Nejib Hassen ◽  
Kamel Besbes
Keyword(s):  
High Speed ◽  
Supply Voltage ◽  
Analog Design ◽  
Current Mirror ◽  
Low Supply Voltage

A Body Bias Generator with Low Supply Voltage for Within-Die Variability Compensation

2014 ◽  
Vol E97.A (3) ◽  
pp. 734-740 ◽  
Author(s):  
Norihiro KAMAE ◽  
Akira TSUCHIYA ◽  
Hidetoshi ONODERA
Keyword(s):  
Supply Voltage ◽  
Variability Compensation ◽  
Low Supply Voltage ◽  
Body Bias

A new erasing and row decoding scheme for low supply voltage operation 16-Mb/64-Mb flash memories

1992 ◽  
Vol 27 (4) ◽  
pp. 583-588 ◽  
Author(s):  
Y. Miyawaki ◽  
T. Nakayama ◽  
S. Kobayashi ◽  
N. Ajika ◽  
M. Ohi ◽  
...  
Keyword(s):  
Supply Voltage ◽  
Flash Memories ◽  
Low Supply Voltage

Low voltage and low frequency current mirror using a two-MOS subthreshold OP-Amp

1996 ◽  
Vol 32 (7) ◽  
pp. 605 ◽  
Author(s):  
K. Tanno ◽  
O. Ishizuka ◽  
Z. Tang
Keyword(s):  
Low Voltage ◽  
Low Frequency ◽  
Current Mirror ◽  
Op Amp ◽  
Frequency Current
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