By Donald O. Pederson

Analog built-in Circuits for verbal exchange: rules, Simulation and layout, moment version covers the research and layout of nonlinear analog built-in circuits that shape the foundation of present-day communique platforms. either bipolar and MOS transistor circuits are analyzed and a number of other numerical examples are used to demonstrate the research and layout ideas built during this booklet.

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Extra info for Analog Integrated Circuits for Communication

Example text

Transient response of EC pair. 295120 V1A = 10 mV, Tstep = 0. 771 PERCENT Fig. 11. Fourier components of V(6). 947613 V1A = 100 mV, Tstep = 0. 797 PERCENT Fig. 12. Fourier components of V(16). 3 Large-Signal Circuit Analysis of the ECP If the ECP is designed properly and if the input voltage is small, the transistors do not enter saturation during an input cycle. 13. In turn, the equilibrium equations of the circuit can be solved to provide a closed-form solution for the voltage transfer characteristic.

For now it is assumed to have a static (dc bias) value of 0 V. Consequently, V1 can be considered to be a diﬀerential input signal with a zero common-mode component. 5 mA. 5 mA. 5 mA)(10 kΩ) = 5 V. The voltage at the common sources is −VGS . For the quiescent, no input signal case, the gate-to-source bias voltage is denoted VGG . Therefore, the quiescent value of the common-source voltage is −VGG . Next an incremental (small-signal) value of v1 is added to V1 . To establish the variational response of the stage at the given operating point it is helpful to assume that operation is restricted to the saturated region of operation.

The presence and eﬀects of a source resistance and/or a load resistance are assumed to be incorporated into the ampliﬁer itself. Energy-storage eﬀects within the ampliﬁer are neglected. Therefore, the developments and results are valid only for low frequencies in the case of a dc-coupled ampliﬁer or for the “midband” frequency region for an ac-coupled ampliﬁer. Vi Amplifier Vo Fig. 1. A general ampliﬁer conﬁguration. In general, the input and output variables include both static (dc) and time-variable components.