Design of Low-Power 3-Bit CMOS Flash ADC for Aerospace Applications

CMOS Flash ADC is an important device of modern electronics and useful for aerospace applications. It is also frequently used in many other applications such as satellite communications, wireless communication, medical, education, and transportation, etc. Amongst all types of ADC available in market, flash ADC is the fastest ADC. In this paper, a low-power 3-bit flash ADC has been designed and verified. Flash ADC is a power-hungry device, it means the power consumptions is very high and it is a major issue of this device. So, here, a new technique is applied to reduce the power consumption so that it can utilize durable applications with high speed. This ADC rail-to-rail supply voltage is +/- 1 V. The circuit is designed and simulated using Cadence analog and digital system design tools with 90 nm CMOS technology.