Features and Benefits
- 2500VRMS for One Minute per UL1577 UL Recognized File #E151738
- Isolated Adjustable DC Power:
- 3V to 5V at Up to 30mA
- ±12.5V at Up to 20mA
- No External Components Required
- SPI (LTM2883-S) or I2C (LTM2883-I) Options
- High Common Mode Transient Immunity: 30kV/μs
- High Speed Operation:
- 10MHz Digital Isolation
- 4MHz/8MHz SPI Isolation
- 400kHz I2C Isolation
- 3.3V (LTM2883-3) or 5V (LTM2883-5) Operation
- 1.62V to 5.5V 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 LTM2883 is a complete galvanic 6-channel 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 ±12.5V and 5V nominal power supplies, each capable of providing more than 20mA of load current. Each supply may be adjusted from its nominal value using a single external resistor.
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.
- Isolated SPI or I2C Interfaces
- Industrial Systems
- Test and Measurement Equipment
- Breaking Ground Loops
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (4)
DC1748A-C: Demo Board for LTM2883 SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power.
DC1748A-B: Demo Board for LTM2883 SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power.
DC1748A-A: Demo Board for LTM2883 SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power.
Documentation & Resources
R596 Reliability Data3/26/2018
DC1748A - Demo Manual3/4/2011
Digital Isolator Product Selection Guide10/3/2017
LTM2883 SPI/Digital or I2C uModule Isolator + Power9/5/2012
Hot-Swappable I2C Isolator2/24/2011
Protect your Innovations: from High Precision to High Power4/12/2022
SPI Isolation Challenge2/17/2021
LTM2883 Video Product Brief10/15/2018
Simple Circuit Monitors Health of –48V Telecom Lead-Acid Battery Backup Systems7/1/2011 LT Journal
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.