ON Semiconductor MC10ELT21DR2G Differential PECL to TTL Translator

The ON Semiconductor MC10ELT21DR2G is a high-performance differential PECL to TTL translator designed to address the needs of high-speed communication and data processing applications. This device is part of ON Semiconductor's comprehensive portfolio of logic level translators, offering a seamless interface between different voltage domains, specifically from PECL (Positive Emitter Coupled Logic) levels to TTL (Transistor-Transistor Logic) levels.

Constructed with advanced bipolar technology, the MC10ELT21DR2G features a differential PECL input structure and a TTL output structure. This allows the device to perform reliable and fast level translation, making it an ideal choice for interfacing between systems operating at different logic levels. The translator operates with a V_CC of 5V ±5%, ensuring compatibility with standard TTL power supply requirements.

One of the key attributes of the MC10ELT21DR2G is its fast propagation delay, typically 3.5 ns, which is crucial for maintaining signal integrity and timing precision in high-speed digital circuits. This makes it an excellent choice for applications such as clock distribution, data transmission, and signal conversion in networking equipment, telecommunications, and high-speed computing environments.

The device is offered in a compact 8-pin SOIC package, designated by the "DR2G" suffix in its part number. The small footprint of the package allows for efficient use of board space, which is especially beneficial in densely packed electronic assemblies. The MC10ELT21DR2G also features a wide operating temperature range from -40°C to +85°C, ensuring reliable performance across various environmental conditions.

For design flexibility, the MC10ELT21DR2G includes an internal 75 kΩ input pulldown resistor on both differential inputs, which helps maintain stability when the inputs are left open. In addition, the device provides a fail-safe feature that ensures a logic high output if the inputs are undriven.

In summary, the ON Semiconductor MC10ELT21DR2G is a versatile and efficient solution for converting differential PECL signals to TTL logic levels. Its fast propagation delay, robust operating temperature range, and compact packaging make it a suitable choice for designers looking to bridge different logic families in high-speed digital systems.