The ZXCT1050 translates the voltage across an external sense resistor into an accurate proportional output current. Since the monitor’s voltage gain is programmable – accurately set using two external resistors – designers can select the sense resistor value to achieve the best compromise between accuracy and power dissipation.
At 50µA, the current monitor’s quiescent current is also 10 times less than that of larger packaged alternatives, providing an improvement in overall power efficiency. The monitor is offered in the compact SOT23-5 format and will operate over an extended industrial temperature range from –40ºC to 125ºC.
The ZXCT1050 current monitor is priced at 0.633 USD in 1k quantities.