MAX40109
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MAX40109

Precision Signal Conditioning AFE for Pressure Sensor Applications

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.92
Features
  • Analog Front-End to Interface with Resistive Bridge-Based Pressure Sensors
  • Temperature Measurement either directly from the Resistive Bridge or from an External Thermistor
  • Analog Zero-Pressure Offset Compensation
  • High-Precision PGA Front-End with 20 Gain Options
  • Analog and Digital Outputs
  • Digital 1-Wire, Power Line Communication (PLC) and I2C interfaces
  • Calibration Memory with Third-Order Polynomial for Compensation from Temperature and Non-Linearity
  • Internal Electromagnetic Interference (EMI) Rejection
  • Supply Voltage Range: 3V to 36V
  • Low 2mA (typ.) Supply Current
  • Available in TQFN and WLP Packages
Additional Details
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The MAX40109 is a low-power, precision sensor interface SoC that includes a high-precision, programmable Analog frontend (AFE), Analog-to-Digital Converter (ADC), calibration memory, and digital signal processing. It also includes a Digital-to-Analog Converter (DAC) with an output buffer to support analog voltage output and a 4mA–20mA current loop. It is designed for sensor applications such as strain gauges, pressure, force, and temperature.

This Sensor AFE has both analog and digital outputs. The digital 1-Wire/I2C interfaces program the calibration memory, the front-end Programmable gain amplifier (PGA)'s gain, and the internal current source that drives the sensors' bridge. The digital I2C interface can also be used to retrieve the digital output data and generate alarms.

The MAX40109 operates from 3V to 36V, is available inthe thin quad flat no-lead (TQFN) package and waferlevel package (WLP). It is specified over the -40°C to+125°C operating temperature range.

Applications

  • Pressure Sensors
  • Strain Gauges
  • Force Sensors
  • Temperature Sensors
  • Wheatstone-Bridge
Part Models 2
1ku List Price Starting From $2.92

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX40109IATP+
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  • HTML
MAX40109IATP+T
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  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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MAX40109EVSYS

Evaluation System for the MAX40109

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MAX40109EVSYS

Evaluation System for the MAX40109

Evaluation System for the MAX40109

Features and Benefits

  • On-Board Microcontroller (MAX32666) to Evaluate the MAX40109
  • Accommodates Easy-to-Use Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX40109 evaluation system (EV system) demonstrates the precision sensor conditioning analog front end (AFE) for pressure sensors. The MAX40109 EV system includes the MAX40109 EV kit and the MAX32666FTHR board. Windows®-compatible software provides a graphical user interface (GUI) to demonstrate the features of the MAX40109. The GUI supports I2C, SPI, and 1-Wire® communication.

The MAX40109 EV kit PCB comes with a MAX40109IATP+ installed which is the I2C and 1-Wire variant IC.

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