Galvanic isolators outstrip opto performance
A Rhopoint Components product story
Edited by the Electronicstalk editorial team Jun 30, 2004
A new five-channel digital magnetic isolator has recently been added to the popular Isoloop range of galvanic isolators from Rhopoint Components.
A new five-channel digital magnetic isolator has recently been added to the popular Isoloop range of galvanic isolators from Rhopoint Components.
These magnetic isolators are designed for use in such applications as: data and peripheral interfaces, high-speed data transmission, motor drive controls and isolated ADCs, DACs and PGAs.
Among the benefits to be gained from using these devices are speed, simplicity of use, a minimum reduction of performance over the life of the isolators, and low power consumption.
The IL261 offers isolation of up to 2500V RMS with four channels in one direction and one channel in the other.
With datarates of up to 100Mbaud, the IsoLoop technology offers speeds of up to ten times those of optoisolators.
Propagation delays of less than 10ns are typical, and pulsewidth distortion is only of the order of 2ns.
The current supply is low, being only up to 10mA per device.
Power consumption of IsoLoop devices is independent of the mark space ratio and solely dependent on frequency.
This makes for a lower power consumption than optoisolators, whose power consumption is heavily dependent on on-state and frequency.
IsoLoop devices will operate over a wide temperature range of -40 to +100C, with high-temperature versions being able to work at +125C.
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