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Low EMI Isolation for Medical Equipment Applications

July 06, 2011 // Silicon Laboratories // 0 comments

Low EMI Isolation for Medical Equipment Applications Download White Paper 311Ko

EMI is especially problematic in medical systems that acquire low-amplitude signals, such as electrocardiographs (ECGs), where signals collected from patients can range from 400 V to 5 mVpk with 3 dB corner frequencies at 0.05 and 100 Hz. The trend towards higher-frequency, lower-power medical systems complicate EMI management by emitting broader bandwidth RF noise at higher energy levels. Find out what you need to know about EMI and how to minimize the effects in medical electronic applications using digital isolation.


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This month, Future Electronics has 20 of Intersil's ISL8203MEVAL2Z evaluation boards to give away to EETimes Europe's readers. Worth 95 US dollars, the board was designed to demonstrate the performance of the ISL8203M dual step-down power module which integrates a PWM controller, synchronous switching MOSFETs, inductors, and passives all in a 9.0x6.5x1.83mm package.

The ISL8203M is rated for dual 3A output current or 6A current sharing operation with an input range of 2.85V to 6V. Each of the two channels employs the current mode pulse width modulation scheme for fast transient response and pulse-by-pulse current limiting.

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