Overview
The ISO7141CCDBQ is a quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO71xx family, which offers high-performance isolation solutions for various industrial and communication applications. The ISO7141CCDBQ features three forward and one reverse-direction isolation channels, making it suitable for bidirectional communication in noise-prone environments. It is designed to provide robust isolation with integrated noise filters, ensuring reliable data transmission.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 (3 forward, 1 reverse) | |
| Signaling Rate | Up to 50 Mbps (with 5-V supplies), up to 40 Mbps (with 3.3-V or 2.7-V supplies) | Mbps |
| Isolation Voltage | Up to 2500 VRMS for 1 minute | VRMS |
| Supply Voltage | 2.7 to 5.5 V | V |
| Supply Current per Channel | 1.3 mA at 1 Mbps, 2.6 mA at 25 Mbps (with 3.3-V supplies) | mA |
| Propagation Delay | 23 ns typical (with 3.3-V supplies) | ns |
| Operating Temperature | -40°C to 125°C | °C |
| Transient Immunity | 50 kV/µs typical | kV/µs |
Key Features
- Robust design with integrated noise filters for noise-prone applications.
- Low power consumption with typical ICC per channel as low as 1.3 mA at 1 Mbps and 2.6 mA at 25 Mbps (with 3.3-V supplies).
- Wide temperature range from -40°C to 125°C.
- High transient immunity of 50 kV/µs typical.
- Default output low option available (suffix F).
- 5-V tolerant inputs when supplied from a 2.7-V or 3.3-V supply.
Applications
- General-purpose isolation.
- Industrial fieldbus (e.g., Profibus, Modbus™, DeviceNet).
- Data buses (e.g., RS-232, RS-485).
- Serial Peripheral Interface (SPI).
Q & A
- What is the maximum signaling rate of the ISO7141CCDBQ?
The maximum signaling rate is up to 50 Mbps with 5-V supplies and up to 40 Mbps with 3.3-V or 2.7-V supplies.
- What is the isolation voltage of the ISO7141CCDBQ?
The isolation voltage is up to 2500 VRMS for 1 minute.
- What is the typical supply current per channel at 25 Mbps with 3.3-V supplies?
The typical supply current per channel is 2.6 mA at 25 Mbps with 3.3-V supplies.
- What is the propagation delay of the ISO7141CCDBQ?
The propagation delay is 23 ns typical with 3.3-V supplies.
- What is the operating temperature range of the ISO7141CCDBQ?
The operating temperature range is from -40°C to 125°C.
- Does the ISO7141CCDBQ have integrated noise filters?
- What are some common applications of the ISO7141CCDBQ?
- Is the ISO7141CCDBQ 5-V tolerant on its inputs?
- What is the transient immunity of the ISO7141CCDBQ?
- Does the ISO7141CCDBQ have a default output low option?
