ISO7231A Datasheet | Texas Instruments

Not Remended for New Designs .ti. ISO7230A ISO7231A SLLS906C - MAY 2008 - REVISED JUNE 2011 One Megabit per Second Triple Digital Isolators Check for Samples: ISO7230A, ISO7231A Features 1 - 1Mbps Signaling Rate - Low Channel-to-Channel Output Skew; 2ns Maximum (5V-Operation) - Low Pulse-Width Distortion (PWD); 10ns Maximum (5V-Operation) - Typical 25-Year Life at Rated Working Voltage (See Application note SLLA197 and Figure 10) - 4000Vpeak Isolation, 560Vpeak VIORM - UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2), IE 61010-1 and CSA Approved, IEC 60950-1 - 4kV ESD Protection - Operate With 3.3V or 5V Supplies - High Electromagnetic Immunity (See Application note SLLA181) - - 40°C to 125°C Operating Range APPLICATIONS - Industrial Fieldbus - puter Peripheral Interface - Servo Control Interface - Data Acquisition DESCRIPTION See the Product Notification section. The ISO7230A and ISO7231A are triple-channel digital isolators each with multiple channel configurations and output-enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO7230 triple-channel device has all three channels in the same direction while the ISO7231 has two channels in one direction and one channel in opposition. These devices have an active-high output enable that when driven to a low level, places the output in a high-impedance state. The ISO7230A and ISO7231A have TTL input thresholds and a noise-filter at the input that prevents transient pulses of up to 2ns in...