Texas Instruments ISO7220B
The ISO7220x and ISO7221x family devices are dualchannel digital isolators. These devices have a logic input and output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to 4000VPK per VDE.| Part No. | ISO7220B |
|---|---|
| Datasheet | ISO7220B Download |
| Manufacturer |  Texas Instruments |
| Description | Dual-Channel Digital Isolators |
| Buy | Stock & Price |
FEATURES
● 1, 5, 25, and 150Mbps Signaling Rate Options – Low Channel-to-Channel Output Skew; 1ns Max – Low Pulse-Width Distortion (PWD); 1ns Max – Low Jitter Content; 1ns Typ at 150Mbps● 50kV/μs Typical Transient Immunity
● Operates with 2.8V (C-Grade), 3.3V, or 5V Supplies
● 4kV ESD Protection
● High Electromagnetic Immunity
● –40°C to +125°C Operating Range
● Typical 28-Year Life at Rated Voltage (see Isolation Lifetime Projection)
● Safety-Related Certifications – DIN EN IEC 60747-17 (VDE 0884-17) – UL 1577 component recognition program – IEC 61010-1, IEC 62368-1 certifications 2
APPLICATIONS
● Factory Automation – Modbus – Profibus™ – DeviceNet™ Data Buses● Computer Peripheral Interface
● Servo Control Interface
● Data Acquisition 3
DESCRIPTION
To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220x and in opposite directions in the ISO7221x. Used in conjunction with isolated power supplies, these devices block high voltage and isolate grounds, as well as prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
