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MAX22000: Industrial Configurable Analog I/O Data Sheet (Rev. 3)3/30/2022PDF979K
概览
优势和特点
- Accuracy
- Analog Output Voltage or Current Mode:
- 0.02%FSR Accuracy, Room Temp
- 0.1%FSR Accuracy, ±50°C Temp Variation
- 5ppm/°C Internal Reference
- Analog Output Voltage or Current Mode:
- Flexibility
- 6 Analog Inputs/1 Analog Output, Software Configurable for Voltage and Current Mode
- Two Auxiliary ADC Inputs for Cold Junction Measurements
- RTD Input Mode in 2, 3, or 4-Wire Configurations
- Thermocouple Input Mode
- ±12.5V Input/Output Voltage Range
- ±25mA or ±2.5mA Output Current Range
- ±25V, ±2.5V, ±500mV, ±250mV, and ±125mV PGA Input Voltage Ranges
- +24V Field Supply for Current Loop
- Optional External Reference for ADC and/or DAC
- Six GPIOs
- 20MHz SPI Interface
- Robustness
- ±36V Protection on All Analog I/O Ports
- Overcurrrent Protection
- Thermal Shutdown
- Undervoltage Interrupt on All High Voltage Supplies
- CRC Detection
- Open Detection on All Analog Inputs
- 1kV HBM Protection on All Pins
- -40°C to +125°C Operating Temperature Range
- 9mm x 9.5mm 64-Pin LGA Package
产品详情
The MAX22000 is an industrial-grade configurable analog input/output device that can be configured on-the-fly in software as a voltage input or output, or current input or output. Additional inputs are available to measure other analog signals.
The device offers an 18-bit DAC with fast settling time as well as a 24-bit delta-sigma ADC. The ADC and DAC can individually choose between an internal or an external reference. The MAX22000 supports the ADC with a low-noise programmable gain amplifier (PGA), with high-voltage and low-voltage input ranges to support RTD and thermocouple measurements. Additional auxiliary inputs are provided to measure cold junction temperatures on-board. The MAX22000 communicates through a high speed 20MHz SPI bus for all configuration and management information as well as for conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts and double-bit errors. The MAX22000 operates from 2.7V to 3.6V analog and digital supplies and up to ±24V high-voltage supplies. The device is available in a 64-pin LGA package and operates over the -40°C to +125°C industrial temperature range.Applications
- Distributed Control Systems
- Process Control
- Programmable Logic Controllers (PLC)
- Programmable Automation Controllers (PAC)
产品生命周期
推荐新设计使用
本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。
评估套件 (1)
参考资料
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MAXREFDES183# Portable Precision Calibrator Quick Start Guide8/20/2021PDF862K
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UG-7526: MAXREFDES185# Universal IO Quick Start Guide6/16/2021PDF1M
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Ultra-Portable IO on the Go11/6/2018PDF544K
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Industrial IO Handbook12/13/2021
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软件可配置的模拟I⁄O助力更紧凑更方便的校准器设计12/1/2021 模拟对话
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Configurable Input/Output Modes for PLC Systems Using the MAX22000 and MAX14914A10/19/2020
工具及仿真模型
IBIS模型
Software Development
参考电路 (4)
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