Best Level Shifters for 2024

The TXB0104 is our top pick for a versatile and reliable level shifter. According to Texas Instruments, this chip serves as a “4-Bit Bidirectional Voltage-Level Translator With Automatic Direction Sensing.” It's perfect for applications needing bidirectional level shifting between 1.2V to 5.5V logic levels. Thanks to its two separate configurable power-supply rails, it provides universal low-voltage bidirectional translation. With data rates of up to 100 Mbps when VCCA is at least 2.5 volts, it's highly efficient. User-friendly and requiring no complex configurations, the TXB0104 is a robust and dependable choice for most level-shifting tasks.

The TXS0104 comes in as our runner-up. This 4-bit bidirectional voltage-level translator is suitable for both open-drain and push-pull applications. It offers low-voltage bidirectional translation between 1.65V to 5.5V, powered by two configurable power-supply rails. It can handle data rates up to 2 Mbps for open-drain and 24 Mbps for push-pull signals. This chip is particularly advantageous for I2C communication and other applications needing to manage tri-state conditions and floating signals. Its performance in mid-range applications makes it a solid runner-up.

For those on a budget, the 74LVC244 is an excellent choice for unidirectional level shifting. It's ideal for applications where you only need to shift 5V signals down to 3.3V. Known for its simplicity and cost-effectiveness, it has been a reliable solution for many engineers. While it lacks the bidirectional capabilities and automatic direction sensing of the TXB0104 and TXS0104, the 74LVC244 offers a straightforward, affordable option without sacrificing essential functionality.

When it comes to high-speed applications, the TXS0108 is highly recommended. This 8-bit bidirectional level shifter supports impressive data rates of up to 110 Mbps in push-pull mode, making it perfect for fast signal communication. However, it does require careful attention to PCB trace lengths to avoid oscillation issues. Utilizing dynamic pull-up resistors and one-shots to accelerate signal transitions, it excels in high-frequency environments. Best suited for short-distance applications, this chip is ideal for projects that demand rapid data transfer.

The TXB0108 is a versatile 8-bit bidirectional voltage-level translator, perfect for those requiring flexible and high-performance level shifting. With automatic direction sensing and support for voltage levels from 1.2V to 5.5V, it can handle data rates up to 60 Mbps. This makes it suitable for a wide range of applications, from simple interfacing to more complex communication protocols. Its ability to support multiple voltage levels and directions without additional setup makes it an excellent choice for dynamic and varied projects.