A Ternary Digital to Analog Converter with High Power Output and 170-dB Dynamic Range
Guido Stolfi (University of Sao Paulo)
TL;DR
This paper presents a high-power, high-dynamic-range 32-bit DAC prototype using ternary cells, capable of generating signals from nanovolt levels to 50 Watts, primarily limited by thermal noise.
Contribution
It introduces a novel ternary DAC design achieving 170 dB dynamic range and high power output for direct auditory stimulus applications.
Findings
Achieved 170 dB dynamic range limited by thermal noise
Supported power output up to 50 Watts
Operates with signals from less than 100 nV
Abstract
A prototype of a very high dynamic range 32-bits Digital to Analog Converter (DAC) was designed and built for the purpose of direct auditory stimulus generation. It provides signals from less than 100 nV up to 50 Watts peak power output, driving a 32-Ohms earphone or speaker. The use of ternary cells makes possible a 170 dB dynamic range that is basically limited by thermal noise only.
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Taxonomy
TopicsAnalog and Mixed-Signal Circuit Design · Advancements in Semiconductor Devices and Circuit Design · Low-power high-performance VLSI design