When the input is high, the n-MOSFET on the bottom switches on, pulling the output to ground.The p-MOSFET on top switches off. This chart shows some of the measured characteristics of three different unbuffered CMOS logic gates, used as voltage Amplifiers.
Fully Integrated CMOS Power Amplifier by Gang Liu Doctor of Philosophy in Electrical Engineering and Computer Sciences University of California, Berkeley Professor Ali M. Niknejad, Co-chair Professor Tsu-Jae King Liu, Co-chair Today’s consumers demand wireless systems that are low-cost, power efficient, reliable and have a small form-factor. Complementary metal–oxide–semiconductor (CMOS), also known as complementary-symmetry metal–oxide–semiconductor (COS-MOS), is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions.
Figure 4 shows the complete differential amplifier implemented using a pair of inverter amplifier with PMOS current load, and 200uA current souce. Transient Analysis of NMOS Inverters Chapter 16 CMOS Inverter Chapter 16.3. 7.2 CMOS Inverter For the investigation of circuit-level degradation a CMOS (complementary MOS) inverter is analyzed. These devices are intended for all general-purpose inverter applications where the medium-power TTL-drive and logic-level-conversion capabilities of circuits such as the CD4009 and CD4049 hex inverter and buffers are not required. • High-input-impedance amplifiers 3 Description The CD4069UB device consist of six CMOS inverter circuits. A major advantage of CMOS technology is the ability to easily combine complementary transistors, n-channel and p-channel, on a single substrate. In designing oscillators, instead of using discrete passive components (resistors, CMOS Differential Amplifier 1. More Buffer Amplifier High Frequency / High Speed Circuits / Wide Band Circuits Data Logging / Acquisition Circuits High Impedance Amplifiers RF (Radio Frequency) Amplifiers CMOS Logic Inverter Amplifier characteristics. Use of the CMOS Unbuffered Inverter in Oscillator Circuits 3 1 Introduction Resistors, inductors, capacitors, and an amplifier with high gain are the basic components of an oscillator.

Although intended primarily for digital use, the basic CMOS inverter can be used as a linear amplifier by biasing its input to a value between the logic-0 and logic-1 levels; under this condition Q1 and Q2 are both biased partly on, and the inverter thus passes significant quiescent current. Current Equations of Differential Amplifier VDD VSS VC VSS VSS ISS VG1 VG2 VGS2 ... to that of the single NMOS inverter with PMOS current load. 19 p-Channel MOSFET p p n p n ¾In p-channel enhancement device. A negative gate-to-source voltage must be applied to create the inversion layer, or channel region, of holes that, “connect” the source and drain regions.