Abstract: Analog to digital conversion is an electronic process that converts a voltage that varies among a infinite number of values to a defined level or status. In this paper Heterogeneous encoder is proposed. Flash ADC structure is faster in digital conversion and use resistor ladder to compare between the input voltages and reference voltages. These designs consume more power and also have more delay. Therefore threshold inverter quantization (TIQ) based comparator has been introduced. TIQ technique uses the two cascading inverter as voltage comparator followed by a encoder, it provides the reduction in power and mostly use in battery operated devices. The heterogeneous encoder is proposed in this paper to get higher speed and to reduce power consumption. The Simulated results with 180nm CMOS technology in CADENCE VIRTUOSO platform shows that the proposed design achieves high speed and low power consumption compared to other analog to digital converters.
Keywords: Analog to Digital Converter, Flash ADC, Threshold inverter quantization, Encoder.
Title: Low-Power Heterogeneous Encoder Based 4-Bit Flash ADC Using TIQ
Author: Piyush Kumar
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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