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Maxim产品 - MAX14890E介绍

MAX14890E - Incremental Encoder Interface for RS-422, HTL, and TTL with Digital Inputs

MAX14890E是Maxim美信半导体公司的一款传感器与传感器接口产品，MAX14890E是Incremental Encoder Interface for RS-422, HTL, and TTL with Digital Inputs，本站介绍了MAX14890E的封装应用图解、特点和优点、功能等，并给出了与MAX14890E相关的Maxim元器件型号供参考。

MAX14890E - Incremental Encoder Interface for RS-422, HTL, and TTL with Digital Inputs - 传感器与传感器接口 - Industry's Most Robust Quad RS-422/TTL/HTL Receivers + 2 DI - 美信半导体

产品概述

The MAX14890E incremental encoder receiver contains four differential receivers and two single-ended receivers.

The differential receivers can be operated in RS-422 or differential high-threshold logic (HTL) modes and are optionally configurable for single-ended TTL/HTL operation. The MAX14890E features a wide common mode input range of -20V to +20V in RS-422 mode.

The auxiliary IEC 61131-2 Type-1/Type-3 digital inputs are designed for operation with switches or proximity sensors and can be individually configured for TTL operation.

All receiver input signals are fault protected to voltage shorts in the ±40V range. Per channel fault detection provides warning of irregular conditions such as small differential signals, shorts, opens, overvoltages, and undervoltages.

The MAX14890E features a pin-selectable SPI or parallel-logic interface. SPI control provides detailed diagnostics and individual configurations for receivers.

The MAX14890E is available in a 32-pin TQFN-EP (5mm x 5mm) and operates over the -40°C to +125°C temperature range.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • High Flexibility Supports All Encoder Types
  • Selectable RS-422/HTL/TTL/DI Receivers
  • RS-422/TTL Switching Rates Up to 35Mbps
  • HTL Switching Rates Up to 400kHz
  • SPI or Pin-Controlled Operation
  • SPI Interface Allows Per-Receiver Configuration
  • 1.62V to 5.5V Logic Interface
  • Integrated Fault Detection Reduces Down-Time
  • Open-Wire and Short-Circuit Detection
  • Overvoltage and Undervoltage Fault Detection
  • Integrated Protection Ensures Robust Communication
  • ±40V Fault Protection Range
  • ±20V RS-422 Common Mode Range
  • DI Glitch Filters
  • ±25kV HBM ESD
  • ±7kV Air-Gap per IEC 61000-4-2 ESD
  • ±10kV Contact per IEC 61000-4-2 ESD
  • -40°C to +125°C Operating Temperature Range
    • 热门应用
  • 编码器接口
  • 电机控制
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