Sensing Optocoupler Solution

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Electronics & Electricity

Sensing Optocoupler Solution
Sensing Optocoupler Solution

Broadcom announced a new optically isolated sigma-delta modulator device, the Avago ACPL-C799, designed for a wide range of industrial applications including servo drives and motors. The new device features a low differential input range of +/-50 mV allowing designers to reduce power dissipation across a current-sensing shunt resistor in servo drive and motor applications.

Compared to previous generation products with an input range of +/-200 mV, the ACPL-C799 enables the use of a smaller shunt resistor with one-quarter the value, thereby eliminating 75 percent (75%) of shunt resistor’s power losses. Despite the reduced input voltage range, the device delivers superb SNR, ENOB and offset drift performance, enabling a high precision motor control in space constrained, high temperature environments.

Combined with superior optical coupling technology, the modulator delivers high noise margins and excellent immunity against isolation-mode transients. With 0.5 mm minimum distance through insulation (DTI), the ACPL-C799 provides reliable reinforced insulation and high working insulation voltage, which is suitable for fail-safe designs. 

Posted on November 29, 2016 - (829 views)
Broadcom UK Limited
406 Science Park Milton Road
CB4 0WW Cambridge - United Kingdom
+44--(0)1223 381300
+44--(0)1223 381310
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