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Design Technique for Regulated Cascode Transimpedance Amplifier Using Gm/ID Methodology

مؤلف البحث
Motaz M Elbadry, Mostafa Y Makkey, Mohamed Abdelgawad, Mohamed Atef
المشارك في البحث
سنة البحث
2020
مجلة البحث
Microelectronics Journal
الناشر
NULL
عدد البحث
Vol. 95
تصنيف البحث
1
صفحات البحث
pp. 104676
موقع البحث
NULL
ملخص البحث

This paper presents an approach using gm/ID methodology for the design of the regulated cascode circuit (RGC) transimpedance amplifier (TIA) for optical receivers. The framework uses lookup tables produced using the gm/ID methodology to define the sizing of the transistors needed to reach the required specifications. The framework has the advantage of setting limits on the design space using intuitive equations derived from the circuit analyses. This gives insight into the effect of changing the value of different circuit parameters on the resulting design while decreasing the time to reach the desired design. The framework gives the flexibility to minimize the DC power consumption or the total input referred noise. The framework is implemented in a 130 nm CMOS process with a 1.5 V supply voltage producing two different designs. Both designs met the required specifications while optimizing power consumption