LTM2886

PRODUCTION

SPI/Digital or I2C μModule Isolator with Fixed ±5V and Adjustable 5V Regulated Power

Data Sheet (Rev. D) Product Selection Table
Viewing:

Overview

  • 6-Channel Logic Isolator: 2500VRMS for 1 Minute
  • UL-CSA Recognized File #E151738
  • Isolated DC Power:
    • 3V to 5V Adjustable at Up to 100mA
    • ±5V Fixed at Up to 100mA
  • No External Components Required
  • SPI/Digital (LTM2886-S) or I2C (LTM2886-I) Options
  • High Common Mode Transient Immunity: 30kV/μs
  • High Speed Operation:
    • 10MHz Digital Isolation
    • 4MHz/8MHz SPI Isolation
    • 400kHz I2C Isolation
  • 3.3V (LTM2886-3) or 5V (LTM2886-5) Operation
  • 1.62V to 5.5V (LTM2886-S) or 3V to 5.5V (LTM2886-I) Logic Supply
  • ±10kV ESD HBM Across the Isolation Barrier
  • Maximum Continuous Working Voltage: 560VPEAK
  • Low Current Shutdown Mode (<10μA)
  • Low Profile (15mm × 11.25mm × 3.42mm) BGA Package

The LTM2886 is a complete galvanic digital μModule® (micromodule) isolator. No external components are required. A single 3.3V or 5V supply powers both sides of the interface through an integrated, isolated DC/DC converter. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

Available options are compliant with SPI and I2C (master mode only) specifications.

The isolated side includes fixed ±5V and 5V adjustable power supplies, each capable of providing more than 100mA of load current. The 5V adjustable supply may be programmed via an external voltage divider.

Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the input and output logic interface. This device is ideal for systems where the ground loop is broken, allowing for a large common mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/μs.

Applications

  • Isolated SPI or I2C Interfaces
  • Industrial Systems
  • Test and Measurement Equipment
  • Breaking Ground Loops
LTM2886
SPI/Digital or I2C μModule Isolator with Fixed ±5V and Adjustable 5V Regulated Power
Isolated 4MHz SPI Interface LTM2886 Operating Through 50kV/μs CM Transients Product Package 1 Product Package 2
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Safety and Regulatory Compliance 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Hardware Ecosystem

Parts Product Life Cycle Description
Digital Isolators 1
LTM2892
PRODUCTION SPI/Digital or I2C μModule Isolator
MOSFET & Gate Drivers 1
LTM9100
PRODUCTION Anyside™ High Voltage Isolated Switch Controller with I2C Command and Telemetry
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

eval board
schematic 1
DC1790A-A

LTM2886-3S Demo Board | SPI µModule Isolator (3.3V Supply)

Buy Now View Details

Product Details

Demonstration circuit 1790A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule™ isolator with fixed ±5V and adjustable 5V regulated power featuring the LTM2886. The demo circuit features an EMI optimized circuit configuration and printed circuit board layout. All components are integrated into the μModule isolator. The demo circuit operates from a single external supply on VCC. The part generates output voltages on VCC2,  which may be adjusted by an external programming resistor, and fixed voltages on V+ and V–. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.

eval board
schematic 2
DC1790A-D

LTM2886-5I Demo Board | I2C µModule Isolator (5.0V Supply)

Buy Now View Details

Product Details

Demonstration circuit 1790A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule™ isolator with fixed ±5V and adjustable 5V regulated power featuring the LTM2886. The demo circuit features an EMI optimized circuit configuration and printed circuit board layout. All components are integrated into the μModule isolator. The demo circuit operates from a single external supply on VCC. The part generates output voltages on VCC2,  which may be adjusted by an external programming resistor, and fixed voltages on V+ and V–. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.

eval board
schematic 3
DC1790A-C

LTM2886-3I Demo Board | I2C µModule Isolator (3.3V Supply)

Buy Now View Details

Product Details

Demonstration circuit 1790A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule™ isolator with fixed ±5V and adjustable 5V regulated power featuring the LTM2886. The demo circuit features an EMI optimized circuit configuration and printed circuit board layout. All components are integrated into the μModule isolator. The demo circuit operates from a single external supply on VCC. The part generates output voltages on VCC2,  which may be adjusted by an external programming resistor, and fixed voltages on V+ and V–. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.


 


eval board
schematic 4
DC1790A-B

LTM2886-5S Demo Board | SPI µModule Isolator (5.0V Supply)

Buy Now View Details

Product Details

Demonstration circuit 1790A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule™ isolator with fixed ±5V and adjustable 5V regulated power featuring the LTM2886. The demo circuit features an EMI optimized circuit configuration and printed circuit board layout. All components are integrated into the μModule isolator. The demo circuit operates from a single external supply on VCC. The part generates output voltages on VCC2,  which may be adjusted by an external programming resistor, and fixed voltages on V+ and V–. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.


 
DC1790A-A
LTM2886-3S Demo Board | SPI µModule Isolator (3.3V Supply)
DC1790A - Schematic
DC1790A-D
LTM2886-5I Demo Board | I2C µModule Isolator (5.0V Supply)
DC1790A - Schematic
DC1790A-C
LTM2886-3I Demo Board | I2C µModule Isolator (3.3V Supply)
DC1790A - Schematic
DC1790A-B
LTM2886-5S Demo Board | SPI µModule Isolator (5.0V Supply)
DC1790A - Schematic

Reference Designs

Figure 1. CN0548 Block Diagram
Figure 1. CN0548 Block Diagram
CN0548 Evaluation Board - Angle View
CN0548 Evaluation Board - Top View
CN0548 Evaluation Board - Bottom View
CN0548 Circuits from the lab

Isolated High Voltage, High Current, Measurement Module

View Detailed Reference Design

Features and Benefits

  • Wide Current (+/-10 A) and Voltage (80 V) Input Range
  • Configurable gain/attenuation settings
  • Galvanically Isolated
  • Arduino form factor compatible

Part Used

Design & Integration Tools

Videos

  • lazy blur
    VIDEO · 2022-05-13 01:02
    CN0548: Isolated High Voltage, High Current, Measurement Module
CN0548
Isolated High Voltage, High Current, Measurement Module
Figure 1. CN0548 Block Diagram
CN0548 Evaluation Board - Angle View
CN0548 Evaluation Board - Top View
CN0548 Evaluation Board - Bottom View

Latest Discussions

2 Years Ago
Interceptor list Creation
2 Years Ago
Interceptor List : Request
2 Years Ago
New Interceptor List
View related discussion on EngineerZone®

Recently Viewed