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The ZXCT1030 from Zetex is a current monitor which features an internal reference and comparator with a non-latching output. The MSOP8 packaged monitor converts the voltage created across a sense resistor into a 1% accurate proportional output voltage and avoids adding any resistance in the ground plane — the cause of offset and the loss of true-ground reference. The device's fixed gain of 10 permits the use of lower value sense resistors which result in a lower voltage drop across the measurement network, of benefit to high current systems. Added functionality is provided by the device's built-in reference and comparator. An external variable resistance sets a user definable threshold for the comparator, which generates an output signal once the monitor output has reached the threshold. The signal can then be used by an external microcontroller.

Zetex Semiconductors, Inc.

Zetex Semiconductors
http://www.zetex.com