Delta-Sigma or DS are devices that support low-to-medium speed and high resolution applications. The delta sigma modulator is highly acknowledged as a delta sigma converter. DS modulators help in reducing the analog of analog circuitry used in the converter along with an additional advantage of high speed analog circuits. A delta- sigma consists of a modulator in connection with a decimation filter and is regarded as one of the most credited forms of conversion in the data. DS modulation aims at achieving higher transmission efficiency and it can used by ADCs and DACs. The market for DS modulators in the U.S is very high as these devices aid in delivering the highest accuracy for current and voltage measurement in power conversion applications. Isolated DS modulators are devices that have no direct connection with the primary device and get the conversion from a separate isolated source.
Companies like Analog Devices have introduced an isolated ADC modulator that work with 3.75 kV voltage and gives good performance and integration. Moreover, DS modulators have output separated from the input circuitry in congruence with a capacitive isolation barrier, recognized as highly resistant to magnetic interference. It is certified to providing reinforced isolation of up to 7000 VPeak. In addition, the device is known to work in conjunction with isolated power supplies, along with preventing noise from entering and interfering with the sensitive circuitry.
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Isolated DS modulators can be applied for the design of Analog-to-Design (ADC) converters and Digital-to-Analog (DAC) converters and this is used to reduce the sampling rate as it is usually found that the modulator signals are oversampled. In addition, these DS modulators are utilized in many fields such as acquiring signals and processing, usually carried out by dominating one of the DAC or ADC converters. The bits employed to achieve the conversion depends on which field it is being utilized. For instance, in medicine, 24 bits resolution is utilized. Demand for isolated DS in countries worldwide is escalating. The driver pertaining to this modulator is that the analog parts of the circuit need not be accurate. Therefore it can be concluded that DS modulators have been heavily utilized to implement oversampling and decimation filtering along with quantization noise shaping in order to achieve high resolution and antialiasing filtering.
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Geographically, the isolated DS modulator market is growing significantly due to its drivers. The regions that dominate this market are North America, Europe, Asia Pacific, Latin America, and Middle East & Africa. North America is undeniably the prime growing market for isolated DS modulators owing to the region’s faster adoption of technologies. Traditionally, this region has been in the forefront in implementing advanced technologies and is expected to remain the primary market in this segment. Europe has the second position in these semiconductor devices. The increasing adoption of technologies in this segment is forecasted to be the chief driver in the region. The Asia Pacific region is expected to be the growing region for this latest technology with countries like Japan, China, and India continuously investing in research and development of this modulator.