MXB7846 Datasheet PDF - Maxim 2.375V to 5.25V / 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor Specs

MXB7846 - 2.375V to 5.25V / 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor

Datasheet Summary

Description

The MXB7846 is an industry-standard 4-wire touchscreen controller.

It contains a 12-bit sampling analogto-digital converter (ADC) with a synchronous serial interface and low on-resistance switches for driving resistive touch screens.

Features

ESD-Protected ADC Inputs ±15kV IEC 61000-4-2 Air-Gap Discharge ±8kV IEC 61000-4-2 Contact Discharge.
Pin Compatible with MXB7843.
+2.375V to +5.25V Single Supply.
Internal +2.5V Reference.
Direct Battery Measurement (0 to 6V).
On-Chip Temperature Measurement.
Touch-Pressure Measurement.
4-Wire Touch-Screen Interface.
Ratiometric Conversion.
SPI™/QSPI™, 3-Wire Serial Interface.
Programmable 8-/12-B.

Datasheet Details

Part number	MXB7846
Manufacturer	Maxim
File Size	967.35 KB
Description	2.375V to 5.25V / 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor
Datasheet	MXB7846 Datasheet
Additional preview pages of the MXB7846 datasheet.

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Full PDF Text Transcription

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19-2436; Rev 1; 5/04 2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor General Description The MXB7846 is an industry-standard 4-wire touchscreen controller. It contains a 12-bit sampling analogto-digital converter (ADC) with a synchronous serial interface and low on-resistance switches for driving resistive touch screens. The MXB7846 uses an internal +2.5V reference or an external reference. The MXB7846 can make absolute or ratiometric measurements. In addition, this device has an on-chip temperature sensor, a battery-monitoring channel, and has the ability to perform touch-pressure measurements without external components. The MXB7846 has one auxiliary ADC input.

Published: May 9, 2005 |