The unity gain frequency (ωu) and the gain-Bandwidth product(GBW) are often considered as identical in ideal or standard circuit theory.
However, in real-world circuits, the unity gain frequency ωu is almost always slightly lower than the GBW. …
UGF vs. GBW in Op-Amps: Understanding Pole-Zero DoubletsRead More »
Noise is one of those things that every analog designer fights against sooner or later. It limits how small signals can be, reduces the SNR, and becomes especially painful in low-voltage and high-precision circuits. …
MOSFET Noise Explained: Thermal & Flicker Noise Equations and Design Trade-offsRead More »
The Body Effect is one of the 3 most important second-order effect of the MOSFET devices, together with channel-lenght modulation and subthreshold conduction. …
What is the Body Effect in CMOS Transistors and How influences the Threshold Voltage VthRead More »
The Miller transformation is a powerful technique for simplifying and analyzing of circuits by inspection. …
Understand The Miller Multiplication Effect with easy ExamplesRead More »
A MOSFET device exhibits different impedance characteristic when viewed from each of the 3 main terminals. …
Node Impedance of the MOSFET Terminals: Source, Drain and GateRead More »
Understanding the trade-off between gain and bandwidth is essential for designing efficient CMOS circuits. The gain-bandwidth trade-off impacts the performance of amplifiers, filters, and other circuits. …
The Gain-Bandwidth Trade-Off Explained: Maximizing Performance in Circuit DesignRead More »
The input and output impedance are important parameters that describe how a circuit interacts with the signals and devices connected to it. …
Understanding the Importance of Input and Output Resistance in CMOS CircuitsRead More »
Miller compensation is the most popular technique to ensure frequency stability. By adding a feedback capacitor between amplifier stages, it shifts the dominant pole to a lower frequency, improving Phase Margin and system stability. …
Understanding Miller Compensation: A Guide to Frequency StabilityRead More »
When two first-order RC filters are cascaded, the overall transfer function is not simply the product of two individual RC filter transfer functions… WHY? …
Several methods can be used to measure the offset voltage of an operational amplifier (op-amp) using only simulations in Cadence Virtuoso. …
Why Offset errors? How to Simulate the DC Offset in Op Amps with CadenceRead More »
The Cgd (gate-drain parasitic capacitance) in a CMOS common-source amplifier plays a significant role, especially at high frequencies. …
Cgd Gate-Drain Parasitic Capacitor effect on a CMOS Common Source AmplifierRead More »
Simulating and carrying out a proper noise analysis in Cadence is important to prevent undesired post-tapeout issues. …
How to make a Noise Analysis in Cadence step-by-stepRead More »
