AK9242NK

The AK9242NK is an analog front end that is optimized for high resolution encoders. 
ZDS A / D converter AK9242NK integrates 2 channel simultaneous sampling A / D converter, a programmable gain amplifier (PGA) and a transimpedance amplifier for current input in a small 4mm x 4mm QFN package. Current / Voltage input for the AK9242NK can be selected. In addition, it has polar coordinates output function (angle calculation algorithm). 
The AK9242NK realizes 16-bit resolution while supporting the sampling rate up to 1.1MHz. A small high accuracy encoder can easily be designed with the AK9242NK. A pin compatible lineup, the AK9243NK (14-bit) is also available.

(*) ZDS | Zero Latency Delta Sigma. ,
 A ZDS A / D converter realizes ultrafast response of SAR while maintaining high accuracy conversion like a delta-sigma converter, based on AKM’s accumulated experience and know-how in analog-digital LSI technology. It contributes to improving the speed and the accuracy of negative feedback circuits. It has long acquisition time comparing with an SAR A / D converter, reducing input buffer load of the IC. Small and high accurate motor systems can be designed with a ZDS A / D converter.
(AKM is the Asahi Kasei Microdevices Corporation)