HMC897

Overview

The HMC897LP4E is a monolithic microwave integrated circuit (MMIC) bandpass filter featuring user-selectable passband frequency. It operates within a center frequency range of 9 to 19 GHz, controlled by an analog voltage between 0 and 14 V. The device exhibits a typical 3 dB bandwidth of approximately 18% and a 20 dB bandwidth of roughly 35%. Key electrical specifications include a maximum insertion loss of 6.5 dB, return loss of 9.5 dB, and input IP3 of 30 dBm. It functions across an operating temperature range of -40 °C to +85 °C and utilizes a 24-lead 4x4 mm surface-mount package.

Feature Summary

• Provides fast tuning response with dynamically adjustable center frequency via analog control voltage.
• Delivers excellent wideband rejection characteristics suitable for advanced communications applications.
• Functions as a single-chip replacement for mechanically tuned designs, offering reduced physical size.
• Features robust performance against microphonics due to its monolithic construction.

Applications

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

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific lot number and manufacturing date code against current production status records. Ensure handling precautions are strictly followed due to electrostatic sensitivity classification. Validate that the ordering suffix matches the required RoHS-compliant matte tin finish and MSL1 rating before finalizing procurement orders.

Selection Notes

Select this component when a compact, tunable bandpass solution is required for frequencies between 9 and 19 GHz. Ensure the design accommodates a control voltage range of 0 to 14 V with a source/sink current capability of ±1 mA. Verify that the application environment stays within the specified -40 °C to +85 °C operating temperature limits. Consider the 6.5 dB insertion loss and 30 dBm input IP3 when designing signal chain gain and linearity budgets.

Part Context

The HMC897LP4E belongs to the HMC897 series of tunable filters manufactured by Analog Devices Inc., formerly Hittite Microwave Corporation. It is designed as a direct replacement for physically large switched filter banks and cavity-tuned filters in RF systems. The device integrates filtering functionality into a small SMT package to simplify board space requirements while maintaining high performance in demanding microwave environments.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided datasheet.