Current monitor covers a wider range

Reductions in circuit complexity, combined with the monitor's SOT23-5 package, mean savings in solution cost and footprint can be achieved.

With a extended common-mode sensing voltage range of 3 to 60V, the ZXCT1080 current monitor from Zetex Semiconductors provides a simple solution for high side current sensing.

By integrating a gain setting resistor, providing a fixed voltage gain of 10, the current monitor also reduces the number of external resistors needed to measure current to just one.

The reduction in circuit complexity, combined with the monitor's SOT23-5 package, means savings in solution cost and footprint can be achieved.

Working off a separate 4.5 to 12V supply voltage, the ZXCT1080 current monitor enables its ground referred output voltage to be closely matched with A-D convertors and microcontrollers and to be protected against harmful overvoltage conditions.

This device is also characterised by a low quiescent current typically 80uA - which serves to reduce the error incurred in translating the actual current being measured into the input sense current required and the overall power consumption.

The ZXCT1080 current monitor from Zetex Semiconductors is priced at US $0.788 in 1000 quantities.

An automotive AEC-Q100 qualified version is also planned for Q1 2008.

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