Update: 01 October, 2023
The MXB7846 is a 4-wire touch-screen controller that uses an internal reference and temperature sensor. It contains a 12-bit sampling analog-to-digital converter (ADC) with its synchronous serial interface and low on-resistance switches for driving resistive touch screens. The device has an on-chip temperature sensor, a battery-monitoring channel, and has the ability to perform touch-pressure measurements without external components. The device has one auxiliary ADC input. All analog inputs are fully ESD protected, eliminating the need for external TransZorb™ devices. The MXB7846 guarantees to operate with a supply voltage down to +2.375V when used with an external reference or +2.7V with an internal reference. In shut-down mode, the typical power consumption is reduced to under 0.5µW, while the typical power consumption at 125ksps throughput and a +2.7V supply is 650µW. Low-power operation makes the MXB7846 ideal for battery-operated systems, such as personal digital assistants.
File format: PDF
Size: -
MD5 Checksum: D76EF3478AF1C5AE58CFD683F2D17523
Publication date: 11 April, 2012
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PDF Link: MAXIM MXB7846 handbook PDF