A1458 Optocoupler Datasheet |work| Now

The (widely documented in component catalogs as the HCPL-1458 or HCPL-A1458 ) is a high-speed, high-performance logic gate optoisolator manufactured by Broadcom (formerly Avago Technologies). Engineered primarily for high-speed signal isolation in rugged industrial or low-voltage systems, this component leverages a hermetically sealed architecture to deliver excellent common-mode transient immunity and stable high-data-rate throughput.

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):

When reviewing the HCPL-1458 documentation , pay attention to these critical sections:

Most A1458 components come in the standard . If you are looking at the top of the chip with the notch facing up: a1458 optocoupler datasheet

With a minimum common-mode transient immunity of 15 kV/µs, it is highly resistant to electrical noise and voltage spikes.

Here is what you need to look for when reading the .

) : Flexible 3.0V to 5.5V supply range matching standard TTL and CMOS logic families. Low Supply Current ( ICCcap I sub cap C cap C end-sub The (widely documented in component catalogs as the

(Note: Always verify the pinout against the specific manufacturer's logo on the chip, as internal configurations can vary between 4-pin and 8-pin versions.) Practical Applications

It is very common for the letters "PC" to be misread as "A" or for prefixes to be dropped in casual notation. The is a standard 4-pin optocoupler.

high-speed, single-channel optocoupler (also known as the HCPL-A1458 ) manufactured by Avago/Agilent The A1458 is a

These are the "do not exceed" limits. Exceeding these will result in a fried component (and potentially a fried circuit).

Optimized for data processing speeds up to 10 MBd (MegaBaud) .

An official datasheet is a dense technical document, but with a focused approach, you can extract the essential information:

) passes from the anode to the cathode, the LED emits infrared light.

While the A1458 excels in high-speed and high-CMR, designers may consider alternatives based on specific needs: Part Number Key Strength HCPL-A1458 1 Ch High Speed Highest CMR (50 kV/μs) & Fast Speed (8 ns) Go to product viewer dialog for this item. 1 Ch High Speed Common alternative in TSR output designs Go to product viewer dialog for this item. 1 Ch High Speed Similar, but widely used in motor drive feedback