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

Maxim Integrated (now Analog Devices)

Datasheet Details

Part number	MXB7846
Manufacturer	Maxim Integrated (now Analog Devices)
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

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.

Overview

19-2436; Rev 1; 5/04 2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature.

Key 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.

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