HCPL2611SD

Logic Output Optoisolators Overview

The HCPL2611SD is a single-channel high-speed logic gate output optocoupler manufactured by onsemi. It features an 8-pin surface-mount package and supports data rates up to 10 Mbps. The device provides 2500 Vrms isolation voltage and exhibits a common mode transient immunity of 10 kV/µs. Typical propagation delays are 75 ns for both low-to-high and high-to-low transitions, with rise and fall times of 50 ns and 12 ns respectively. It operates within a temperature range of -40°C to +85°C.

Logic Output Optoisolators Feature Summary

• Integrates a GaAsP LED with a high-gain photodetector IC featuring Schottky-clamped open-collector outputs for robust AC and DC isolation.
• Ensures LVTTL and LVCMOS compatibility to facilitate reliable digital signal transmission across isolated boundaries.
• Delivers high common mode transient immunity to maintain signal integrity in electrically noisy environments.

Logic Output Optoisolators Applications

• Isolated line receiver circuits
• Microprocessor system interfaces
• Computer peripheral interfaces
• Digital isolation for A/D and D/A conversion

Logic Output Optoisolators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics, as variations exist within the family. Confirm RoHS compliance status for the specific manufacturing batch. Ensure the selected variant matches the required isolation voltage and package type for the target PCB layout. Cross-reference the manufacturer's obsolescence notices to verify current production status.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required between logic families operating at different voltage levels. The open-collector output necessitates an external pull-up resistor; ensure the resistor value aligns with the desired switching speed and load requirements. Verify that the input forward current does not exceed maximum ratings to prevent LED degradation during operation.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-26xx series of high-speed optocouplers designed for TTL-compatible applications. It serves as a successor or alternative to legacy HP/Agilent designs, offering improved performance metrics such as higher data rates and better noise immunity compared to earlier generations in the same product family.

Logic Output Optoisolators Replacement Considerations

onsemi recommends using the HCPL26xxM series as the new equivalent part number for this component. Designers should consult the specific datasheet for the M-series variant to ensure pin compatibility and parameter alignment before substitution.

Logic Output Optoisolators FAQ

What is the typical propagation delay for the HCPL2611SD?

The typical propagation delay is 75 ns for both low-to-high (tpLH) and high-to-low (tpHL) transitions.

Does the HCPL2611SD support LVTTL/LVCMOS logic levels?

Yes, the unique design of the detector IC output ensures compatibility with LVTTL and LVCMOS logic families.