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ISO7240MDWR

Quad 150Mbps digital isolator, 4/0, 2.5kVrms, 25kV/μs CMTI, CMOS, SOIC-16

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Manufacturer Part：

ISO7240MDWR

Package：

SOIC-16 DW (10.3 x 10.3 x 2.65mm, 300mil)

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Description

Product Overview

The ISO7240MDWR from Texas Instruments is a quad-channel 150Mbps digital isolator with all four channels in the same direction (4/0), featuring 2500Vrms isolation, 25kV/μs CMTI, CMOS input thresholds, SiO2 isolation barrier, and operation from 3.3V or 5V supplies in a 16-pin SOIC DW package.

Key Specifications

Channels 4 (all forward, 4/0)
Data Rate 0 to 150Mbps
Isolation Voltage 2500Vrms (UL 1577)
Surge Isolation (VIOSM) 4000Vpk
CMTI 25kV/μs min (50kV/μs typ.)
Propagation Delay 19ns typ.
Pulse Width Distortion 2ns max.
Channel Skew 1ns max.
Supply Voltage 3.15V to 5.5V (each side independently)
Current per Channel 2.5mA typ. (DC)
Input Threshold CMOS (VCC/2)
Creepage/Clearance 8mm min.
Package SOIC-16 DW (10.3 x 10.3mm)
Operating Temperature -40°C to +125°C

Features

  • 4 channels all in same direction (4/0)
  • 150Mbps signaling rate with CMOS thresholds
  • 2500Vrms isolation per UL 1577 for 1 minute
  • 4000Vpk basic insulation per VDE 0884-10
  • 25kV/μs minimum CMTI
  • Low pulse width distortion: 2ns max.
  • Low channel-to-channel skew: 1ns max.
  • Operates with 3.3V or 5V on either side independently
  • 5V tolerant input pins regardless of supply
  • 4kV ESD protection
  • High electromagnetic immunity

Applications

  • Industrial RS-485/RS-232 isolation
  • SPI/I2C digital interface isolation
  • Power supply feedback loop isolation
  • Medical equipment isolation barriers
  • Motor drive logic interface isolation

The ISO7240MDWR from Texas Instruments is a quad-channel digital isolator with all four channels in the same (forward) direction, achieving 150Mbps data rate with CMOS input thresholds. The device uses TI’s silicon dioxide (SiO2) capacitive isolation barrier providing 2500Vrms isolation per UL 1577 and 4000Vpk basic insulation per VDE 0884-10. With 25kV/μs minimum CMTI, 19ns typical propagation delay, and 2ns max pulse width distortion, it is designed for high-speed digital isolation in industrial and communications systems. Each side can be powered independently from 3.15V to 5.5V.

The ISO7240MDWR uses capacitive coupling through a silicon dioxide (SiO2) isolation barrier to transmit digital signals across the isolation boundary. The input signal modulates a high-frequency carrier that is capacitively coupled across the isolation barrier, then demodulated and reconstructed on the output side. The M suffix denotes CMOS input thresholds at VCC/2 without the input noise filter found in the C (TTL) version, enabling higher data rates up to 150Mbps at the cost of reduced noise filtering. The 25kV/μs CMTI ensures the output remains stable during fast common-mode transients typical of motor drive and power converter environments. The double-sided isolation architecture provides symmetrical performance regardless of signal direction.

Pin Name Type Function
1 VCC1 Power Side 1 supply (3.15V to 5.5V)
2-5 IN1-IN4 Input Logic inputs (CMOS thresholds, 5V tolerant)
6-8 GND1/NC Power Side 1 ground / No connect
9-12 NC/GND2 Power No connect / Side 2 ground
13-16 OUT4-OUT1 Output Logic outputs (isolated from inputs)
16 VCC2 Power Side 2 supply (3.15V to 5.5V)
  • Industrial RS-485 bus isolation with 25kV/μs CMTI
  • SPI bus isolation between MCU and ADC at 150Mbps
  • Isolated gate driver logic interface for motor drives
  • Medical equipment patient-side digital isolation
  • Power supply feedback loop isolation in server PSUs
Manufacturer Part Number Package Notes
TI ISO7240CDWR SOIC-16 25Mbps with noise filter (C-version)
TI ISO7740MDWR SOIC-16 Pin-compatible upgrade, higher CMTI
ADI ADuM1401BRWZ SOIC-16 Quad isolator, 150Mbps, transformer based
Silicon Labs Si8641BB-B-IS1 SOIC-16 Quad 150Mbps, 5kVrms option
Renesas ISOW7841DFMR SSOIC-16 With integrated isolated DC-DC
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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