Overview
The ISO7242MDWR is a quad-channel, high-speed digital isolator produced by Texas Instruments. This device is part of the ISO7242x family, which features multiple channel configurations and output-enable functions. The ISO7242MDWR has two channels in each direction, making it versatile for various isolation needs. It uses Texas Instruments’ silicon-dioxide (SiO2) isolation barrier to block high voltages, isolate grounds, and prevent noise currents from interfering with sensitive circuitry. The device operates over a wide temperature range of –40°C to +125°C and can be powered from either 3.3V or 5V supplies on either side.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | –40 to 125 | °C |
| Signaling Rate Options | 25 and 150 Mbps | - |
| Channel-to-Channel Output Skew | 1 ns Maximum | ns |
| Pulse-Width Distortion (PWD) | 2 ns Maximum | ns |
| Jitter Content | 1 ns Typ at 150 Mbps | ns |
| ESD Protection | 4 kV | - |
| Supply Voltage | 3.3V or 5V | V |
| Safety Certifications | DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1 | - |
Key Features
- 25 and 150 Mbps signaling rate options
- Low channel-to-channel output skew; 1 ns maximum
- Low pulse-width distortion (PWD); 2 ns maximum
- Low jitter content; 1 ns typical at 150 Mbps
- Selectable default output (for ISO7240CF devices)
- > 25-year life at rated working voltage
- 4 kV ESD protection
- Operates with 3.3V or 5V supplies
- High electromagnetic immunity
- –40°C to +125°C operating temperature range
- Safety-related certifications: DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1
Applications
- Factory Automation: Modbus, Profibus™, DeviceNet™ data buses
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition
Q & A
- What is the ISO7242MDWR used for?
The ISO7242MDWR is used as a quad-channel digital isolator to block high voltages, isolate grounds, and prevent noise currents from interfering with sensitive circuitry.
- What are the signaling rate options for the ISO7242MDWR?
The signaling rate options are 25 Mbps and 150 Mbps.
- What is the operating temperature range of the ISO7242MDWR?
The operating temperature range is –40°C to +125°C.
- What are the supply voltage options for the ISO7242MDWR?
The device can be powered from either 3.3V or 5V supplies.
- Does the ISO7242MDWR have ESD protection?
Yes, it has 4 kV ESD protection.
- What safety certifications does the ISO7242MDWR have?
The device has DIN EN IEC 60747-17, UL 1577, IEC 61010-1, and IEC 62368-1 certifications.
- What is the typical jitter content at 150 Mbps?
The typical jitter content is 1 ns at 150 Mbps.
- Can the ISO7242MDWR be used in factory automation?
Yes, it can be used in factory automation, particularly with Modbus, Profibus™, and DeviceNet™ data buses.
- What package type does the ISO7242MDWR come in?
The device comes in a SOIC (DW) package with 16 pins.
- Is the ISO7242MDWR suitable for high electromagnetic environments?
Yes, it has high electromagnetic immunity.
