Optocoupler Datasheet |top| — A1458
It operates efficiently with low input drive currents, typically around 13 mA, making it compatible with most standard logic families.
Because of its high speed and robust isolation capabilities, the HCPL-A1458 is widely used in:
Note: Internally, the input consists of a GaAsP LED (Gallium Arsenide Phosphide) and the output consists of a photodetector IC, separated by a transparent insulation layer. 4. Typical Applications
A look at the electrical parametric ratings from the HCPL-1458 / A1458 Datasheet reveals its optimization for low-power, high-speed digital applications: a1458 optocoupler datasheet
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 (
) maxing out at , or rated at 35 ns at 10 kHz depending on the specific biasing test configurations. This permits high data-rate logic communication without introducing latency issues.
: Ensures human safety and signal clarity by physically segregating line noise from data processing chips. Equivalent Substitutes and Cross-References It operates efficiently with low input drive currents,
Safely connecting a 3.3V/5V MCU to high-voltage industrial equipment.
) is a high-speed, single-channel optocoupler designed for isolation in high-performance switching applications. It is typically manufactured by Broadcom (formerly Avago Technologies).
In the world of electronics, galvanic isolation is a critical requirement for safety, noise immunity, and signal integrity. Optocouplers (also known as opto-isolators) are the backbone of this technology. Among the myriad of components available, the stands out for its specific balance of speed, current transfer ratio, and isolation voltage. Typical Applications A look at the electrical parametric
) times if you are using this for PWM (Pulse Width Modulation) or high-frequency communication.
: Isolates the delicate digital inputs of Programmable Logic Controllers (PLCs) from harsh 24V industrial sensor networks and field buses.
In environments with heavy machinery, electromagnetic interference (EMI) can ruin data signals. The A1458 "cleans" the signal by transmitting it via light.
– I see no common industry optocoupler named “A1458.” Could it be a misreading of:
Based on the datasheet information from various technical sources, the HCPL-A1458 boasts several performance metrics designed for modern, efficient electronics:


