LTM2887
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LTM2887

SPI/Digital or I2C μModule Isolator with Dual Adjustable 5V Regulators

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Info: : PRODUCTION tooltip
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Part Details
Part Models 12
1ku List Price Starting From $13.76
Features
  • 6-Channel Logic Isolator: 2500VRMS for 1 Minute
  • UL-CSA Recognized File #E151738
  • Isolated DC Power:
    • 1.8V to 5V Logic Supply at Up to 100mA
    • 0.6V to 5V Auxiliary Supply at Up to 100mA
  • No External Components Required
  • SPI/Digital (LTM2887-S) or I2C (LTM2887-I) Options
  • High Common Mode Transient Immunity: 30kV/μs
  • High Speed Operation:
    • 10MHz Digital Isolation
    • 4MHz/8MHz SPI Isolation
    • 400kHz I2C Isolation
  • 3.3V (LTM2887-3) or 5V (LTM2887-5) Operation
  • 1.62V to 5.5V (LTM3886-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
Additional Details
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The LTM2887 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 two 5V nominal power supplies, including programmable current limit, each capable of providing more than 100mA of load current. The supplies may be adjusted from their 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.

APPLICATIONS

  • Isolated SPI or I2C Interfaces
  • Industrial Systems
  • Test and Measurement Equipment
  • Breaking Ground Loops
Part Models 12
1ku List Price Starting From $13.76

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Jul 21, 2021

- 21_0159

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Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

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Ink Mark to Laser Mark Conversion for µModule

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LTM2887CY-5I#PBF

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LTM2887IY-5I#PBF

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LTM2887IY-5S#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM2887CY-3I#PBF

PRODUCTION

LTM2887CY-3S#PBF

PRODUCTION

LTM2887CY-5I#PBF

PRODUCTION

LTM2887CY-5S#PBF

PRODUCTION

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 4

reference details image

DC1791A-B

LTM2887-5S Demo Board | SPI µModule Isolator (5.0V Supply)

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DC1791A-B

LTM2887-5S Demo Board | SPI µModule Isolator (5.0V Supply)

LTM2887-5S Demo Board | SPI µModule Isolator (5.0V Supply)

Product Detail

Demonstration circuit 1791A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule isolator with dual adjustable 5V regulators featuring the LTM2887. 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 and VL2 which may be adjusted by external programming resistors. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.


 


reference details image

DC1791A-A

LTM2887-3S Demo Board | SPI µModule Isolator (3.3V Supply)

zoom

DC1791A-A

LTM2887-3S Demo Board | SPI µModule Isolator (3.3V Supply)

LTM2887-3S Demo Board | SPI µModule Isolator (3.3V Supply)

Product Detail

Demonstration circuit 1791A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule isolator with dual adjustable 5V regulators featuring the LTM2887. 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 and VL2 which may be adjusted by external programming resistors. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.


 


reference details image

DC1791A-D

LTM2887-5I Demo Board | I2C µModule Isolator (5.0V Supply)

zoom

DC1791A-D

LTM2887-5I Demo Board | I2C µModule Isolator (5.0V Supply)

LTM2887-5I Demo Board | I2C µModule Isolator (5.0V Supply)

Product Detail

Demonstration circuit 1791A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule isolator with dual adjustable 5V regulators featuring the LTM2887. 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 and VL2 which may be adjusted by external programming resistors. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.

reference details image

DC1791A-C

LTM2887-3I Demo Board | I2C µModule Isolator (3.3V Supply)

zoom

DC1791A-C

LTM2887-3I Demo Board | I2C µModule Isolator (3.3V Supply)

LTM2887-3I Demo Board | I2C µModule Isolator (3.3V Supply)

Product Detail

Demonstration circuit 1791A is a serial peripheral interface bus (SPI) or inter-IC bus (I2C) μModule isolator with dual adjustable 5V regulators featuring the LTM2887. 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 and VL2 which may be adjusted by external programming resistors. It communicates all necessary signaling across the isolation barrier through LTC’s isolator μModule technology.


 


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