EDN

Automotive R²Coupler™ Optically Isolated Sigma-Delta Modulator

Avago Technologies has developed an optically isolated 1-bit, 2nd order Sigma-Delta (∑-∆) modulator device, the ACPL-C797T. This device converts an analog input signal into a high speed data stream ...
Electronic Design

Optically Isolated Sigma-Delta Modulator Fortifies Industrial Motor Designs

Announced as one of the industry’s first optically isolated sigma-delta modulators using an external clock to provide direct measurement of motor phase currents in power inverters, the CMOS-based ACPL ...
EDN

Sigma-delta modulator hones motor control

With 16-bit resolution and SNR of 86 dB, STMicro’s ISOSD61 isolated modulator enhances performance and reliability in industrial motor control. The second-order sigma-delta modulator offers a choice ...
Business Wire

Highest Accuracy Isolated Sigma-Delta Modulator Increases Efficiency of Motor Drives and Power Inverters

AD7403 isolated sigma-delta modulator achieves industry’s highest accuracy current and voltage measurement. NORWOOD, Mass.--(BUSINESS WIRE)--Analog Devices, Inc. (NASDAQ: ADI) introduced today the ...
Nature

Delta-Sigma Modulation in CMOS Technology

Delta-sigma modulation has emerged as a pivotal technique in CMOS technology for high-resolution analogue‐to‐digital conversion. By utilising oversampling and noise-shaping strategies, this method ...
Electronic Design

Understanding Continuous-Time, Discrete-Time Sigma-Delta ADCs And Nyquist ADCs

Sigma-delta converters are in wide use among applications that demand high precision and accuracy. A variant of the sigma-delta architecture, called the continuous-time sigma delta (CT-S?), has found ...