MAX14890E
Info: : PRODUCTION
searchIcon
cartIcon

MAX14890E

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

Show More showmore-icon

Industry's Most Robust Quad RS-422/TTL/HTL Receivers + 2 DI

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $4.15
Features
  • High Flexibility Supports All Encoder Types
    • Selectable RS-422/HTL/TTL/DI Receivers
    • RS-422 Switching Rates Up to 35Mbps
    • TTL Switching Rates Up to 5MHz
    • 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
Additional Details
show more Icon

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.

Applications

  • Encoder Interfaces
  • Motor Controllers
  • Pulse Counters
  • Servo Control Commutation
Part Models 2
1ku List Price Starting From $4.15

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX14890EATJ+
  • HTML
  • HTML
MAX14890EATJ+T
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 17, 2018

- 1722C

ASSEMBLY

MAX14890EATJ+

PRODUCTION

MAX14890EATJ+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 17, 2018

- 1722C

arrow down

ASSEMBLY

MAX14890EATJ+

PRODUCTION

MAX14890EATJ+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX14890EEVKIT

Evaluation Kit for MAX14890E

zoom

MAX14890EEVKIT

Evaluation Kit for MAX14890E

Evaluation Kit for MAX14890E

Features and Benefits

  • Four Configurable Differential or Single-Ended Receivers
  • SPI or Pin-Controlled Operation USB-PC Connection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX14890E evaluation kit (EV kit) is a fully assembled and tested PCB that contains the MAX14890E incremental encoder interface. The MAX14890E incremental encoder receiver contains four differential receivers and two single-ended receivers for RS-422, HTL, TTL, and digital signals.

Power for the transceiver can be provided from a single +5V source or from an on-board 24V to 5V step-down circuit. The MAX14890E EV kit includes terminal blocks for motor and power connections.

On-board switches and jumpers are included to configure the MAX14890E in pin-control mode. The evaluation board is also designed with the Arduino® form-factor for easy software evaluation and development.

Applications

  • Encoder Interfaces
  • Motor Controllers
  • Pulse Counters
  • Servo Control Commutation
Reference Designs

Reference Designs 1

fig03

Go-IO Industrial IoT Reference Design

zoomopens a dialog

MAXREFDES212

Go-IO Industrial IoT Reference Design

Go-IO Industrial IoT Reference Design

Features and Benefits

  • Universal IO (UAIO), ±12.5V or ±25mA
  • 8 Digital Inputs, IEC 61131-2 compliant Types 1/3
  • 4 Digital Outputs, up to 1A with Safe Demag
  • IO-Link® Master, four ports, version 1.1 compliant
  • TMG IO-Link Master Stack
  • One RS-485 COM port, full duplex to 25Mbps data rate
  • Robust interfaces with integrated protection for ESD and surge

View Detailed Reference Design external link

Design & Integration Tools

pdf icon

ZIP

106.65 M

Recently Viewed