Overview
The ISO721DUBR is a high-performance digital isolator manufactured by Texas Instruments, designed for applications requiring robust electrical isolation and high-speed data transmission. This single-channel isolator is part of the ISO72x series, offering a 2.5 kVrms isolation rating and a data rate of up to 100 Mbps. It is ideal for industrial automation, medical devices, and communication systems where noise immunity and signal integrity are critical. Its compact SOIC-8 package and low power consumption make it a versatile solution for space-constrained designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Isolation Rating | 2500 | Vrms | |
| Data Rate | 100 | Mbps | |
| Channels | 1 | Unidirectional | |
| Propagation Delay | 17 | ns | Typical |
| Supply Voltage | 3.3 to 5.5 | V | |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOIC-8 | ||
| Current Consumption | 4.3 | mA | Per channel, typical |
| Isolation Type | Capacitive Coupling | ||
| CMTI | 25 | kV/µs | Common Mode Transient Immunity |
Key Features
- High-speed data transmission up to 100 Mbps.
- Robust 2.5 kVrms isolation for noise immunity.
- Low power consumption with typical current of 4.3 mA per channel.
- Compact SOIC-8 package for space-constrained designs.
- Wide operating temperature range from -40°C to 125°C.
- Capacitive coupling ensures reliable isolation.
Applications
The ISO721DUBR is widely used in industrial automation for isolating communication signals in PLCs and motor drives. In medical devices, it ensures patient safety by isolating sensitive circuits. It is also employed in communication systems to maintain signal integrity in noisy environments. Additionally, it finds applications in automotive electronics for isolating CAN and LIN bus signals.
Q & A
1. What is the maximum data rate supported by ISO721DUBR?
The ISO721DUBR supports a maximum data rate of 100 Mbps.
2. What is the isolation rating of ISO721DUBR?
The isolation rating is 2500 Vrms.
3. What is the typical propagation delay of ISO721DUBR?
The typical propagation delay is 17 ns.
4. What is the operating temperature range of ISO721DUBR?
It operates from -40°C to 125°C.
5. What type of isolation does ISO721DUBR use?
It uses capacitive coupling for isolation.
6. What is the supply voltage range for ISO721DUBR?
The supply voltage range is 3.3 V to 5.5 V.
7. How many channels does ISO721DUBR have?
It has one unidirectional channel.
8. What is the typical current consumption per channel?
The typical current consumption is 4.3 mA per channel.
9. What package does ISO721DUBR come in?
It comes in an SOIC-8 package.
10. What is the common mode transient immunity (CMTI) of ISO721DUBR?
The CMTI is 25 kV/µs.
