Maxim's new Hall-effect sensor interface offers an analog output for linear information and a digital output for Hall-effect switches, thus giving designers multiple sensor-monitoring options.
SUNNYVALE, CA—March 3, 2010—Maxim Integrated Products (NASDAQ: MXIM) 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 MAX9621 protects sensors from supply transients up to 60V and short-to-ground conditions, which enables it to withstand the harsh operating conditions in automotive applications. The device features a minimum of 50µs blanking time following Hall-effect sensor power-up or restart. A low-current (1µA, typ) shutdown mode conserves power.
Available in a 3mm x 5mm, 10-pin µMAX
package, the MAX9621 operates from a 5.5V to 18V supply and is fully specified over the -40°C to +125°C automotive temperature range. Pricing starts at $0.87 (1000-up, FOB USA). Evaluation kits are available upon request.
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6300 products serving the industrial, communications, consumer, and computing markets.
Maxim reported revenue in excess of $1.6 billion for fiscal 2009. A Fortune 1000 company, Maxim is included in the Nasdaq 100, the Russell 1000, and the MSCI USA indices. For more information, go to www.maxim-ic.com.