HMC890LP5ETR

Overview

The HMC890LP5ETR is a monolithic microwave integrated circuit (MMIC) bandpass filter designed for surface-mount technology. It features a user-selectable passband frequency tunable between 1 GHz and 2 GHz via an analog control voltage ranging from 0 V to 14 V. The device exhibits a typical 3 dB bandwidth of approximately 11% and a 20 dB bandwidth of roughly 33%. Key electrical specifications include a maximum insertion loss of 9 dB, a return loss of 10 dB, and a maximum linear input power of 10 dBm. The component utilizes separate pins for center frequency (Vfctl) and bandwidth (Vbwctl) control, each sourcing or sinking up to ±1 mA. It operates within a temperature range of -40°C to +85°C and is housed in a compact 32-lead 5x5 mm SMT package.

Feature Summary

• Provides a dynamically adjustable single-chip solution replacing mechanically tuned filters
• Features fast tuning response with a full-bandwidth transition time of 200 ns
• Delivers excellent wideband rejection performance exceeding 30 dB
• Offers low residual phase noise characteristics suitable for sensitive applications

Applications

• Test & Measurement Equipment
• Military RADAR & EW/ECM Systems
• SATCOM & Space Communications
• Industrial & Medical Equipment

Procurement Notes

Verify the obsolete status of this component before initiating any procurement activities. Confirm whether the specific 'ETR' suffix denotes tape-and-reel packaging versus bulk quantities if required by assembly processes. Ensure that current inventory sources are validated against official discontinuance notices to prevent supply chain disruptions during production planning.

Selection Notes

Select this component when a compact, electronically tunable bandpass filter is required for frequencies between 1 GHz and 2 GHz. Consider the 9 dB insertion loss and 10 dB return loss limits when designing matching networks. Verify that the control driver circuits can provide the necessary voltage range of 0 V to 14 V and handle the ±1 mA current requirements for both frequency and bandwidth tuning inputs effectively.

Part Context

This part belongs to the Hittite Microwave Corporation MMIC filter family, which was subsequently acquired by Analog Devices Inc. The HMC890LP5E represents a specialized tunable filter solution designed to replace bulky switched filter banks or cavity-tuned filters in advanced communication systems requiring rapid frequency agility.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineering teams should evaluate newer tunable filter architectures or fixed-frequency alternatives that meet the specific 1-2 GHz bandwidth and rejection requirements.