Overview
The ISO7241CDWRG4 is a quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO7241x family, which features multiple channel configurations and output-enable functions. It is designed to provide high-speed digital isolation, helping to block high voltage, isolate grounds, and prevent noise currents from interfering with or damaging sensitive circuitry. The device uses Texas Instruments’ silicon-dioxide (SiO2) isolation barrier and can operate with 3.3-V or 5-V supplies on either side, in any combination.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-pin SOIC (DW) |
| Operating Temperature Range | -40°C to 125°C |
| Signaling Rate Options | 25 Mbps and 150 Mbps |
| Channel-to-Channel Output Skew | 1 ns Maximum |
| Pulse-Width Distortion (PWD) | 2 ns Maximum |
| Jitter Content | 1 ns Typ at 150 Mbps |
| ESD Protection | 4 kV |
| Insulation Voltage | 2.5 kV RMS for 1 minute per UL 1577 |
| Certifications | VDE 4000 V, CSA Component Acceptance Notice #5A, IEC 60950-1 |
Key Features
- High-speed signaling rates of 25 Mbps and 150 Mbps
- Low channel-to-channel output skew and pulse-width distortion
- Low jitter content
- Selectable default output (for certain models)
- Input noise filter to prevent transient pulses (for C suffix models)
- High electromagnetic immunity
- Operates with 3.3-V or 5-V supplies on either side
- Signal input pins are 5-V tolerant
- Long isolation capacitor lifetime (> 25 years at rated working voltage)
- 4 kV ESD protection
Applications
- Industrial Fieldbus
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition Systems
- Isolated Data Acquisition Systems for Process Control
Q & A
- What is the ISO7241CDWRG4 used for?
The ISO7241CDWRG4 is used for high-speed digital isolation, helping to block high voltage, isolate grounds, and prevent noise currents from interfering with or damaging sensitive circuitry.
- What are the signaling rate options for the ISO7241CDWRG4?
The signaling rate options are 25 Mbps and 150 Mbps.
- What is the operating temperature range of the ISO7241CDWRG4?
The operating temperature range is -40°C to 125°C.
- Does the ISO7241CDWRG4 have ESD protection?
Yes, it has 4 kV ESD protection.
- What certifications does the ISO7241CDWRG4 have?
The device has VDE 4000 V, CSA Component Acceptance Notice #5A, and IEC 60950-1 certifications.
- Can the ISO7241CDWRG4 operate with different voltage supplies?
Yes, it can operate with 3.3-V or 5-V supplies on either side, in any combination.
- What is the isolation voltage of the ISO7241CDWRG4?
The isolation voltage is 2.5 kV RMS for 1 minute per UL 1577.
- Does the ISO7241CDWRG4 have a noise filter at the input?
Yes, models with the C suffix have an input noise filter to prevent transient pulses.
- What are some common applications of the ISO7241CDWRG4?
Common applications include industrial fieldbus, computer peripheral interface, servo control interface, and data acquisition systems.
- How long is the expected lifetime of the isolation capacitor in the ISO7241CDWRG4?
The expected lifetime of the isolation capacitor is more than 25 years at rated working voltage.
