Texas Instruments ISO722
The ISO722 and ISO722M devices include an activelow output enable that when driven to a high logic level, places the output in a high-impedance state and turns off internal bias circuitry to conserve power. The ISO721 and ISO722 devices have TTL input thresholds and a noise filter at the input that prevent transient pulses of up to 2ns in duration from being passed to the output of the device. The ISO721M and ISO722M devices have CMOS VCC / 2 input thresholds, but do not have the noisefilter and the additional propagation delay.| Part No. | ISO722 |
|---|---|
| Datasheet | ISO722 Download |
| Manufacturer |  Texas Instruments |
| Description | Single Channel High-Speed Digital Isolators |
| Buy | Stock & Price |
FEATURES
● 100 and 150Mbps signaling rate options● Propagation delay is 12ns typical.
● Pulse skew is 0.5ns typical.
● Low-power sleep mode
● Typical 28year life at rated working voltage (see Isolation Lifetime Projection)
● High electromagnetic immunity (see application note ISO72x Digital Isolator Magnetic-Field Immunity)
● Failsafe output
● Drop-in replacement for most opto and magnetic isolators
● Operates from 3.3V and 5V supplies
● –40°C to +125°C operating temperature range
● 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
The ISO721, ISO721M, ISO722, and ISO722M devices are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000VPK per VDE 0884-17.
