MAX9925AUB+

The MAX9925AUB+ is a variable reluctance sensor interface with differential input and adaptive peak threshold in 10 pin µMAX package. The variable reluctance (VR or magnetic coil) sensor interface device is ideal for position and speed sensing for automotive crankshafts, camshafts and transmission shafts. This device integrates a precision amplifier and comparator with selectable adaptive peak threshold and zero crossing circuit blocks that generate robust output pulses even in the presence of substantial system noise or extremely weak VR signals. It makes all three terminals of the internal operational amplifier suitable for greater flexibility gain.

• Supply voltage range is 4.5V to 5.5V
• Operating temperature range from -40°C to 125°C
• Differential input stage provides enhanced noise immunity
• Precision amplifier and comparator allows small signal detection
• User enabled internal adaptive peak threshold or flexible external threshold
• Zero crossing detection provides accurate phase information
• Supply current is 2.6mA

Applications

Communications & Networking

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party