A Generalized Power Supply Induced Jitter Model Based on Power Supply Rejection Ratio Response

2021 ◽  
pp. 1-9
Author(s):  
Yin Sun ◽  
Jongjoo Lee ◽  
Chulsoon Hwang
Keyword(s):  
Power Supply ◽  
Rejection Ratio ◽  
Model Based ◽  
Power Supply Rejection Ratio ◽  
Jitter Model ◽  
Ratio Response ◽  
Supply Rejection

scholarly journals A sub-1V high PSRR OpAmp based β-multiplier CMOS bandgap voltage reference with resistive division

2019 ◽  
Vol 15 (1) ◽  
pp. 155
Author(s):  
Anass SLAMTI ◽  
Youness MEHDAOUI ◽  
Driss CHENOUNI ◽  
Zakia LAKHLIAI
Keyword(s):  
Temperature Coefficient ◽  
Power Supply ◽  
Supply Voltage ◽  
Voltage Source ◽  
Voltage Reference ◽  
Voltage Range ◽  
Rejection Ratio ◽  
Power Supply Rejection Ratio ◽  
Bandgap Voltage Reference ◽  
Supply Rejection

<span lang="EN-US">A sub-1V opamp based β-multiplier CMOS bandgap voltage reference (BGVR) with high power supply rejection ratio (PSRR) and low temperature coefficient (TC) is proposed in this paper. A current mode regulator scheme is inserted to isolate the supply voltage of the operational amplifier (opamp) and the supply voltage of the BGVR core from the supply voltage source in order to reduce ripple sensitivity and to achieve a high PSRR. The proposed circuit is designed and simulated in 0.18-μm standard CMOS technology. The proposed voltage reference delivers an output voltage of 634.6mV at 27°C. Tthe measurement temperature coefficient is 22,3ppm/°C over temperature range -40°C to 140°C, power supply rejection ratio is -93dB at 10kHz and -71dB at 1MHz and a line regulation of 104μV/V is achieved over supply voltage range 1.2V to 1.8V. The layout area of the proposed circuit is 0.0337mm<sup>2</sup>. The proposed sub-1V bandgap voltage reference can be used as an internal voltage reference in low power LDO regulators and switching regulators.</span>

One Kind of Band-Gap Voltage Reference Source with Piecewise High-Order Temperature Compensation and Power Supply Rejection Ratio

2014 ◽  
Vol 644-650 ◽  
pp. 3575-3578
Author(s):  
Zheng Da Li ◽  
Lin Xie
Keyword(s):  
Band Gap ◽  
Power Supply ◽  
Temperature Compensation ◽  
Supply Voltage ◽  
Voltage Regulation ◽  
Reference Source ◽  
Voltage Reference ◽  
Rejection Ratio ◽  
Power Supply Rejection Ratio ◽  
Supply Rejection

This paper designed a new band-gap voltage reference circuit with two-stage temperature compensation.It realizes non-linear temperature compensation by using NMOS-pipe leakage current and increases the power supply rejection ratio of the band-gap voltage reference source by introducing negative feedback between the operational amplifier and the power supply. What is more, the paper simulates the band-gap voltage reference source based on CSMC 0.5μm CMOS technique. The result as follow: the band-gap voltage reference source has the temperature coefficient of 8.2ppm/oC among-40-120oC with the supply voltage of 3V, the low-frequency power supply rejection ratio is 83dBat 27oC and the power supply rejection ratio is 71dB in 1KHz, the output voltage regulation is 1.05mV/V in the supply voltage range from 2.4V to 5V.

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