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Product Detailed Parameters
- Description：IC SCREEN CNTRL 12BIT 20TQFN
- Series：TacTouch™
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube,Tube
- 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：20-WFQFN Exposed Pad
- Supplier Device Package：20-TQFN (4x4)
- Current - Supply：-
- Grade：-
- Qualification：-
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Overview
The MAX11811ETP+ is a low-power, ultra-small resistive touch-screen controller featuring an integrated haptic driver. It operates from a single 1.7V to 3.6V supply and includes a 12-bit SAR ADC with multiplexer for X/Y coordinate and pressure measurement. The device supports I2C serial communication at up to 400kHz and offers direct and autonomous operating modes. Autonomous mode utilizes an on-chip FIFO to reduce host processor intervention and system power consumption. It is specified over the extended industrial temperature range of -40°C to +85°C in a 20-pin, 4mm x 4mm TQFN package.
Feature Summary
- 12-Bit SAR ADC with 4-Wire Touch-Screen Interface
- Integrated Haptic Driver with PWM Output for Piezo Controllers
- Autonomous Mode with On-Chip FIFO for Reduced Power Consumption
- Data Tagging for Measurement Type and Touch Event Information
Applications
- Mobile Communication Devices
- PDA, GPS Receivers, and Personal Navigation Devices
- Automotive Center Consoles
- Handheld Games
Procurement Notes
Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications or product change notices prior to procurement. Ensure packaging specifications match design requirements.
Selection Notes
Select this component for applications requiring low-power resistive touch sensing with integrated haptic feedback capabilities. Verify that the 1.7V to 3.6V supply voltage range aligns with the system design. Consider the 20-pin TQFN package dimensions for PCB layout constraints.
Part Context
The MAX11811ETP+ belongs to the TacTouch family of touch-screen controllers from Analog Devices / Maxim Integrated. It is designed for portable electronics where power efficiency and small form factor are critical. The ETP+ suffix indicates the specific 20-pin TQFN package variant suitable for surface-mount assembly.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential cross-references or updated components.
