MXB7846EUE+T

Sensor And Detector Interfaces Overview

The MXB7846EUE+T is a 4-wire touchscreen controller manufactured by Analog Devices Inc./Maxim Integrated. It integrates a 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface and low on-resistance switches designed for driving resistive touch screens. The device operates on a single supply voltage ranging from +2.375V to +5.25V and features an internal +2.5V reference or support for an external reference. Key capabilities include absolute or ratiometric measurements, on-chip temperature sensing, battery monitoring, and touch-pressure measurement without external components. All analog inputs are fully ESD protected.

Sensor And Detector Interfaces Feature Summary

• Integrates a 12-bit ADC with synchronous serial interface and low on-resistance switches for resistive touch screen driving
• Supports absolute or ratiometric measurements using an internal +2.5V reference or external reference source
• Includes on-chip temperature sensor, battery-monitoring channel, and touch-pressure measurement capability
• Features fully ESD-protected analog inputs eliminating the need for external protection devices

Sensor And Detector Interfaces Applications

• Personal Digital Assistants
• Portable Instruments
• Point-of-Sales Terminals
• Touch-Screen Monitors
• Cellular Phones

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'EUE+T' against official Analog Devices documentation to confirm package type, tape-and-reel quantity, and RoHS compliance status. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design. Cross-reference with Maxim Integrated naming conventions if sourcing from legacy distributors.

Sensor And Detector Interfaces Selection Notes

Select this component when a compact solution for 4-wire resistive touch screens is required. It is suitable for applications needing integrated temperature sensing and battery monitoring alongside touch input. Consider the power consumption profiles at various sampling rates, such as 2µA in shutdown mode, for battery-operated designs requiring low standby current.

Sensor And Detector Interfaces Part Context

The MXB7846 belongs to the MXB784 series of touchscreen controllers from Maxim Integrated. It is pin-compatible with the MXB7843, allowing for potential direct replacements in existing designs. The device is part of Analog Devices' portfolio following the acquisition of Maxim Integrated, maintaining continuity in industrial and consumer interface solutions.

Sensor And Detector Interfaces Replacement Considerations

The MXB7843 is documented as pin-compatible with the MXB7846. Verify functional equivalence regarding ADC resolution and switching characteristics before substitution. No other public substitute part numbers are confirmed in the available data.