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Product Detailed Parameters
- Description：IC SCREEN CNTRL 12BIT 12WLP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Touchscreen：4 Wire Resistive
- Resolution (Bits)：12 b
- Interface：I2C, Serial
- Voltage Reference：-
- Voltage - Supply：1.7V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：12-WFBGA, WLBGA
- Supplier Device Package：12-WLP (2.14x1.56)
- Current - Supply：-
- Grade：-
- Qualification：-
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Overview
The MAX11801EWC+T is a low-power, ultra-small resistive touch-screen controller from the MAX11800–MAX11803 family. It operates on a single supply of 1.7V to 3.6V and features a 12-bit SAR ADC with a multiplexer for interfacing with 4-wire resistive touch panels. The device supports I²C serial communication at up to 400kHz. Key capabilities include direct and autonomous operating modes, data tagging for measurement and event information, digital preprocessing to reduce bus loading, and programmable touch-detect pullup resistors. It is housed in a 12-pin WLP package (2.14mm x 1.56mm) and specified for operation between -40°C and +85°C.
Feature Summary
- 12-Bit SAR ADC with Multiplexer
- I²C Serial Interface (400kHz)
- Direct and Autonomous Operating Modes
- Data Tagging for Measurement/Event Info
- Digital Processing Reduces Bus Activity
- Programmable Touch-Detect Pullup Resistors
Applications
- Mobile Communication Devices
- PDAs and GPS Receivers
- Personal Navigation Devices
- Media Players
- Portable Instruments
Procurement Notes
Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and lead-free packaging details. Check for any product change notifications or end-of-life notices associated with this specific part number before procurement.
Selection Notes
Select the MAX11801EWC+T when an I²C interface is required instead of SPI. Ensure the application utilizes a 4-wire resistive touch panel. Verify that the system power supply falls within the 1.7V to 3.6V range. Consider the autonomous mode if host processor intervention needs to be minimized during touch scanning.
Part Context
This component belongs to the MAX11800–MAX11803 series of low-power touch-screen controllers. The 'E' suffix indicates an extended temperature range (-40°C to +85°C). The 'W' denotes the 12-pin Wafer Level Package (WLP). The '+T' signifies tape-and-reel packaging. Other variants in the series offer different interfaces like SPI or automotive qualification.
Replacement Considerations
Compatible substitutes within the same family include MAX11800EWC+T (SPI interface), MAX11802EWC+T (SPI interface), and MAX11803EWC+T (I²C interface). Ensure the replacement matches the required serial interface protocol and package dimensions.
