Analogue, Mixed Signal, LSI


Current-sense amplifiers

30 March 2011 Analogue, Mixed Signal, LSI

Maxim has introduced the MAX9611 and MAX9612, the latest additions to its portfolio of high-side, current-sense amplifiers (CSAs). Designed for industrial, consumer and automotive applications that require digitised current-sense data, the ICs integrate a 12-bit ADC and a gain block that can be configured as either an op-amp or a comparator. This integration provides the key components for easy implementation of fault monitoring and closed-loop control applications, such as inrush-current limiting and gain control.

The devices integrate an I²C-controlled, 12-bit, 500 Sps ADC for reading the sense-resistor current, input common-mode voltage, op-amp/comparator output, op-amp/comparator reference voltage and internal die temperature. The I²C bus is compatible with 1,8 V and 3,3 V logic, providing a direct interface for modern microcontrollers.

For more information contact Michelle Parreira, CST Electronics, +27 (0)11 608 0070, sales@csstelectronics.co.za, www.cstelectronics.co.za



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