By Mingliang (Michael) Liu
This e-book is helping engineers to understand primary theories and layout rules via providing actual and intuitive factors of switched-capacitor circuits. quite a few circuit examples are mentioned and the writer emphasizes crucial and basic ideas curious about enforcing cutting-edge switched-capacitor circuits for analog sign processing and tool administration functions. through the ebook, the writer provides quite a few step by step tutorials and offers useful layout examples.
While a few quantitative research is critical to appreciate underlying suggestions, tedious mathematical equations and formal proofs are refrained from. An intuitive appreciation for switched-capacitor circuits is accomplished. a lot of the prevailing details on modern switched-capacitor circuit purposes is within the type of purposes notes and knowledge sheets for numerous switched-capacitor ICs. This e-book compiles such details in one quantity and coherently organizes and constructions it.
* step by step tutorials which emphasize the main primary principals
* Few tedious mathematical equations
* the 1st easy-to-understand compilation in this topic
Read Online or Download Demystifying Switched Capacitor Circuits PDF
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Additional resources for Demystifying Switched Capacitor Circuits
E) Series-parallel resistor simulation. (f) Parasitic-insensitive resistor simulation. insignificant, and the capacitor voltage can be approximated to a dc voltage (V1 − V2). 1) At time t3, Φ1 is already off and Φ2 is just turned on, and switches 1 and 3 are open whereas 2 and 4 are closed. 2) At time t5, again, Φ1 is turned on instantly and Φ2 is already off, and switches 1 and 3 are closed whereas 2 and 4 are open. 3) Demystifying Switched-Capacitor Circuits From now on, the sequence of charge transfer between time t2 and t6 is repeated every T, and the system reaches a steady state.
Thus, Cp1 does not affect the transfer function, and the integrator is parasitic insensitive. 2(c). Interestingly enough, it can be found by inspection that besides a few changes in nodal and switch configurations, the key difference between these two integrators lies in the polarity of the net charge transferred from Vin to Vout. 3(a) the input is charged onto the bottom plate of C.
The derivation of these resistances is left to the reader as an exercise. The Advantages of SC Resistor Simulations The most significant advantage of SC resistor simulations is the considerable saving of silicon chip area. 01 mm2 in a standard CMOS process. 01 = 100 times larger! Another important advantage is that the frequency response of the SC circuit is controllable by adjusting capacitance ratios. This feature enables us to improve the overall accuracy of the circuit at much less physical design cost and effort.