Though this is a logic gate, understanding the ratio of output current to input current helps ensure your input signal is strong enough to trigger the output. Switching Characteristics: Look at the rise ( ) and fall (
Before we dissect the numbers, let’s understand the anatomy. The A1458 is a . This means it consists of two primary components housed within a single, light-tight package (usually a DIP-4 or SMD format): a1458 optocoupler datasheet
) is a high-speed, logic-gate optocoupler designed by Broadcom (formerly Avago Technologies). It is specifically engineered for applications requiring robust galvanic isolation and high-speed signal transmission, such as industrial control systems and data communications. Though this is a logic gate, understanding the
—which reduces the drive power needed from the control circuit. TTL Compatibility This means it consists of two primary components
The A1458 is often associated with a general-purpose phototransistor output optocoupler, similar in class to the 4N35 or PC817 but with specific parametric differences. Always refer to the manufacturer’s official datasheet for the exact revision you are using (e.g., from Vishay, Everlight, or a generic Chinese brand). This article synthesizes typical specifications for the A1458 series.