With a typical temperature coefficient below 100 ppm/°C, the ZXCT1011 current monitor assures accurate measurement of DC currents over the temperature range –40 to 125°C. Designed to sense current on the high side, the IC avoids any disruption of the ground plane, often a cause of offset and the loss of true ground reference.

Simple to use and needing few external components, the five-pinned ZXCT1011 measures the voltage across a low-value sense resistor and converts it into a proportional output current via an external shunt resistor. An output resistor scales the current to produce a 1% accurate ground referenced output voltage.

A maximum sense voltage of 500 mV and a bandwidth of 1.5 MHz mean the current monitor accurately monitors the supply or load current in real time, and over a wide range of load currents from microamps to hundreds of amps. Coupled with its wide input voltage range of 2.5 to 20 V and ability to withstand circuit transients, the ZXCT1011 will meet the requirements of a diverse range of demanding applications in automotive, telecom and industrial control sectors.

The ZXCT1011’s miniature SOT23-5 package and typical operating current of 4 µA also makes it a good choice for portable battery operated equipment designs. The ZXCT1011 costs $0.58 in 1,000-piece quantities.

Zetex Semiconductors
www.zetex.com