1458 Optocoupler Datasheet

(often referred to simply as the 1458 optocoupler) is a high-performance, hermetically sealed high-speed optocoupler

Industrial Control Systems: Ground loop elimination and signal isolation in noisy factory environments.

Note: Standard optocouplers like the 4N35 are slow (µs range). They cannot pass high-speed data (e.g., I²C at 400 kHz or SPI at 10 MHz). For high speed, use dedicated logic optocouplers (e.g., 6N137). 1458 optocoupler datasheet

By providing a comprehensive overview of the 1458 optocoupler datasheet, this article aims to help designers and engineers understand the device's features, specifications, and applications, and to provide a valuable resource for designing and developing applications that utilize this device.

The HCPL-1458 is an integrated opto-isolator that utilizes a short optical transmission path to transfer signals between two electrically isolated circuits. This isolation is critical for protecting sensitive low-voltage components, such as microcontrollers, from high-voltage spikes and reducing ground loop interference. Key Technical Specifications (often referred to simply as the 1458 optocoupler)

Specifications of the 1458 Optocoupler

Clarification: The number "1458" almost certainly refers to the LM1458 or UA1458 – a general-purpose dual operational amplifier. This paper addresses the probable user error and redirects focus toward actual optocoupler families (e.g., 4N××, PC×××, HCPL-××××, CNY××). For the purpose of this technical discussion, we will analyze a representative optocoupler, the 4N35, whose datasheet structure typifies the industry standard. For high speed, use dedicated logic optocouplers (e

, high-speed logic gate optocouplers like the 1458 typically follow this standard 8-pin layout: Input Side: Pins for the Anode and Cathode of the internal GaAsP LED. Output Side: cap V sub cap C cap C end-sub , Ground, and the Open Collector output. 3. Essential Design Considerations

Packaging: Commonly found in a hermetically sealed 8-pin DIP or SOP-8 package, which offers superior protection against moisture and environmental contaminants compared to standard plastic packages. Comparison: Optocoupler vs. Operational Amplifier