HMC253ALC4

RF Switches Overview

The HMC253ALC4 is a non-reflective Single-Pole-8-Throw (SP8T) RF switch IC manufactured by Analog Devices Inc. utilizing GaAs technology. It operates from DC to 3.5 GHz with a 50 Ohm impedance. Key electrical parameters include an insertion loss of 1.9 dB, typical off-isolation of 32 dB, and a supply current of 4.5 mA. The device supports control voltages between 2 V and 5 V, with switching times under 100 ns. It is housed in a leadless RoHS-compliant 24-CQFN (4x4 mm) ceramic SMT package.

RF Switches Feature Summary

• Non-reflective SP8T topology for signal routing
• Wideband operation from DC to 3.5 GHz
• Low power consumption with 4.5 mA operating current
• Leadless ceramic surface-mount packaging

RF Switches Applications

• WiMax infrastructure systems
• CATV distribution networks
• Mobile phone base stations
• Test and measurement equipment

RF Switches Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix 'LC4' denotes the leadless ceramic package variant. Check for moisture sensitivity level (MSL 3) handling requirements during storage and assembly. Ensure compatibility with the EV1HMC253ALC4 evaluation board for initial circuit validation. Review datasheet specifications for thermal management in high-density PCB layouts.

RF Switches Selection Notes

Select this component for applications requiring low reflection and wide bandwidth up to 3.5 GHz. The non-reflective design minimizes signal interference in complex RF chains. Consider the 24-CQFN package for compact surface-mount designs. Verify that the 2 V to 5 V control voltage range aligns with the system logic levels. Evaluate the 4.5 mA current draw against total power budget constraints.

RF Switches Part Context

Part of the HMC253 series of RF switches. The HMC253LC4TR is a discontinued predecessor; the HMC253ALC4 serves as the active replacement. Associated evaluation hardware includes the EV1HMC253ALC4 kit. The device belongs to the Wireless & RF Integrated Circuits subcategory within Analog Devices' portfolio.

RF Switches Replacement Considerations

The HMC253LC4TR is listed as a direct substitute but is marked as obsolete. Designers should transition to the HMC253ALC4 or HMC253ALC4TR for new productions. Verify pinout and parameter consistency before swapping components in existing designs.