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Maxim MAXREFDES82 Smart Force Sensor Reference Design

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Maxim MAXREFDES82 Smart Force Sensor Reference Design

 

Maxim MAXREFDES82 Smart Force Sensor Reference Design features a next generation industrial, smart force sensor. Mounted on a quadrant of load cells channeled into a multi-channel, 24-bit analog-to-digital converter (ADC), MAXREFDES82 senses weight and center of mass for objects placed on the platform. The scale provides full-scale responses up to 780g. The user interface provides an active display of center of mass on the platform, as well as total measured weight. In addition to serving as a smart force sensor, the design works very well as a ruggedized touch interface with force sensing. The system consumes less than 50mA during normal operation and features a USB interface for quick evaluation and integration.

Features

  • Maxim MAX11254ATJ+ Delta-Sigma Analog-to-Digital Converter (ADC)
  • Maxim MAX8574EUT+ High Efficiency LCD Boost Converter wit True Shutdown
  • Maxim MAX6071AAUT18+ High Performance Voltage Reference, 1.8V
  • Maxim MAX6071AAUT41+ High Performance Voltage Reference, 4.096V
  • STMicroelectronics STM32F429ZIT6 STM32 F4 High-Performance ARM Cortex-M4 Microcontroller w/2MB Flash
  • ISSI IS42S16400J-7TL 64M (4Mx16) 3.3V 143MHz SDR SDRAM
  • Newhaven Display HNHD-3.5-320240MF-ATXL#-1 TFT (Thin-Film-Transistor) 320x240 Color Liquid Crystal Display Module
  • 3D Human Interface Input
  • High Precision Weigh Scale
  • Low Power ADC
  • Compact
  • Rugged, Cost Effective, Flexible 3D Human-Interface Input Device
  • High Precision, High Resolution Measurements
  • Fast, Low-Power Data Acquisition

Applications

  • 3D Human Interface Input Device
  • Battery-Powered Instrumentation
  • Industrial Control and Measurement
Maxim MAXREFDES82 Smart Force Sensor Reference Design
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Block Diagram
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