MAX22005
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MAX22005

12-Channel Factory-Calibrated Configurable Industrial-Analog Input

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Fully-Calibrated SW Programmable HV Protected Configurable AI

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $8.60
Features
  • Enables More Robust and Reliable Systems
    • ±36V High-Voltage Protection for All Input Ports
    • 2kV HBM ESD Protection of All Pins
    • ±2kV Surge Protection (with External 5kΩ Resistor)
    • CRC Detection for Robust Serial Communication
    • Watchdog Timer
  • Software Configurability
    • ±12.5V Analog Input-Voltage Mode
    • ±25mA Analog Input-Current Mode Using External Sense Resistor
    • Configurable Inputs Using External Sense Resistor and Low-Cost Switches
  • Best-in-Class System Accuracy
    • 0.02% FSR at 25°C Factory Calibrated
    • 0.05% FSR over ±50°C from 25°C Factory Calibration
    • Maximum of 30nA Input Leakage
    • 5ppm/°C Internal Reference
  • Additional Features
    • Internal or External ADC Reference
    • Eight GPIO Ports
    • 48.5mW Low Power Dissipation with ±5V Supply
    • 30MHz SPI/QSPI/DSP-Compatible Serial Interface
  • Operating Temperature -40°C to +125°C
  • 7.5mm × 7mm 48-pin LGA package
Additional Details
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The MAX22005 is a twelve-channel industrial-grade analog input voltage-mode device that can also be configured as analog-input current-mode device using an external precision resistor per channel. It can also operate as configurable analog-input using an external precision resistor and low-cost switch per channel. Input channels can be used as twelve single-ended inputs, or six differential inputs, or up to eight multichannel configurable differential inputs. In total, the device supports up to 26 different configurations

The MAX22005 features an integrated 24-bit delta-sigma ADC that is shared between all channels. The ADC can be used with either an integrated 5ppm/°C precision reference or an external reference. Standard industrial analog input voltage ranges are converted to the ADC input voltage range using high-voltage, zero-drift input amplifiers. All input ports are robustly protected up to ±36V reverse polarity and ±1.5kV surge pulses without the need of TVS diodes.

Eight general-purpose digital I/O (GPIO) ports are available for common use, or they can be used to control external switches for configurable inputs.

The MAX22005 is factory calibrated with best-in-class system performance of less than 0.05% FSR Total-Unadjusted-Error (TUE) over temperature.

The host communicates with the MAX22005 through a high-speed 30MHz SPI bus for all configurations and information management, as well as for acquiring conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts, as well as all double-bit errors.

The MAX22005 operates from 2.7V to 3.6V analog and digital supplies, and up to ±24V high-voltage supplies.

The MAX22005 is available in 48-pin LGA package and operates over the -40°C to +125°C industrial temperature range.

Applications

  • Programmable Logic Controllers (PLC)
  • Programmable Automation Controllers (PAC)
  • Distributed Control Systems (DCS)
Part Models 2
1ku List Price Starting From $8.60

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX22005ALM+
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MAX22005ALM+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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MAX22005EVKIT

Evaluation Kit for the MAX22005

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MAX22005EVKIT

Evaluation Kit for the MAX22005

Evaluation Kit for the MAX22005

Features and Benefits

  • Easy Selection and Configuration of Input Channels
  • On-the-Fly Configuration as Analog Input-Voltage Mode or Analog Input-Current Mode
    • ±12.5V and 0V to +12.5V Ranges in Analog Input-Voltage Mode
    • ±25mA and 0V to 25mA Ranges in Analog Input- Current Mode
  • MAX22005 is Factory Calibrated
    • EV Kit Does Not Require System Calibration for AIVM
  • CRC Detection for Robust Communication
  • Watchdog Timer for SPI Activity
  • Access to Eight GPIO Channels
  • Ability to Synchronize Multiple EV kits for Simultaneous ADC Conversion
  • -40°C to +125°C Temperature Range
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Windows 10 Compatible Software

Product Detail

The MAX22005 evaluation kit (EV kit) provides a proven design to evaluate the MAX22005, 12-Channel factory-calibrated configurable industrial-analog input. The MAX22005 EV kit includes the MAX22005 evaluation board and a graphical user interface (GUI) that provides communication from a PC to the target device through a USB port.

The GUI is compatible with Windows® 10 for exercising the features of the MAX22005 IC. The EV kit GUI allows the user to read the 24-bit ADC conversion result for any of the input channels through the high-speed SPI interface in single-ended, differential, or multifunctional configurations. The SPI interface is galvanically isolated from the USB port.

The MAX22005 EV kit must be powered from an external +24V power supply through the power jack (J100). The on-board DC-DC converters provide ±15V HVDD/HVSS and +3.3V AVDD/DVDD power rails for the entire board.

The MAX22005 EV kit board comes with a MAX22005ALM+ installed in a 48-pin, 7.5mm x 7.0mm LGA package.

Applications

  • Distributed Control Systems (DCS)
  • Programmable Automation Controllers (PAC)
  • Programmable Logic Controllers (PLC)
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MAX22005PMB

Evaluation Kit for the MAX22005

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MAX22005PMB

Evaluation Kit for the MAX22005

Evaluation Kit for the MAX22005

Features and Benefits

  • Easy Evaluation of the MAX22005
  • Configurable as 8 Single-Ended Analog Voltage Inputs, 4 Single-Ended Analog Current Inputs, 4 Differential Analog Voltage Inputs, 4 Multifunctional (Universal) Analog Inputs, or Combinations Thereof
  • Analog Input Voltage Range: ±12.5V
  • Analog Input Current Range: ±25mA
  • ±1.5kV Input Surge Protection
  • Works with the USB2PMB2# Adapter and Munich GUI Software
  • Fully Assembled and Tested
  • Proven PCB Layout
  • RoHS Compliant

Product Detail

The MAX22005PMB# (peripheral module board) provides a Pmod™-compatible hardware solution to evaluate the MAX22005 Twelve-Channel Configurable Industrial Analog Input. Refer to the MAX22005 IC data sheet for more details on the operation of the IC and its register map.

The MAX22005PMB# is most easily evaluated by configuring four universal analog inputs with the Munich GUI software through the USB2PMB2# adapter board. Alternatively, any SPI-compatible microcontroller, adapter board, or FPGA can be used along with a custom driver to evaluate the board.

The PCB dimension is just 99mm long x 23mm wide, with the width determined by the size of the terminal block.

Note the module provides a subset of the MAX22005 features. For greater flexibility, refer to the MAX22005 Evaluation Kit.

Applications

  • Programmable Logic Controllers (PLC)
  • Programmable Automation Controllers (PAC)
  • Distributed Control Systems (DCS)
Reference Designs

Reference Designs 1

maxrefdes185 front

Configurable IO with Safety Monitoring

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