Mixed Signal/Analog
MAX9621: Dual, 2-wire, Hall-effect sensor interface provides flexibility through analog and digital outputs
Maxim introduces the MAX9621, a dual, 2-wire, Hall-effect sensor interface with analog and digital outputs. This device enables the microprocessor to monitor the status of Hall-effect sensors either through the analog output by mirroring the sensor current for linear information or through the filtered digital output. The input current threshold can be programmed for the digital output. A high-side current-sense architecture eliminates the need for a ground-return wire without introducing ground shift, thus reducing wiring cost by 50%. The MAX9621 is well suited for automotive body controllers such as window lifters.
The Available in a 3mm x 5mm, 10-pin microMAX(R) package, the MAX9621 operates from a 5.5V to 18V supply and is fully specified over the -40 degrees Celsius to +125 degrees Celsius automotive temperature range. Pricing starts at $0.87 (1000-up, FOB USA). Evaluation kits are available upon request.
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