The ISO1540QDQ1 with digital isolators automotive, 2.5-kVrms, isolated bidirectional clock, bidirectional I2C isolator 8-SOIC -40 to 125 is a semiconductor device manufactured by Texas Instruments. It is specifically designed to provide bidirectional electrical isolation between two independent systems or nodes. It is an ideal choice for automotive and industrial applications requiring controlled electrical isolation and protection.The ISO1540QDQ1 features a 2.5-kVrms dielectric strength and an isolation efficiency of 200 dB for up to 5 MHz. Its signal I/O ports are actively driven in both directions, allowing for bidirectional I2C communication. It also features a bi-directional clock channel with high-speed propagation delays and low jitter characteristics. As a result, it is well-suited for communications and control applications requiring high speed, accuracy, and isolation.The ISO1540QDQ1 comes in an 8-SOIC package with a temperature range of -40 to 125°C. As a result, it is suitable for operating in extreme temperatures and harsh industrial settings. Furthermore, it features a 3.3V single power supply which allows for easy and cost-effective power source for the device. It also features undervoltage lockout which prevents potential damage from supply voltage drop.