Analog Devices (ADI) provides a range of radio frequency (RF) and microwave devices tailored for test, measurement, and industrial equipment. Notably, ADI's HMC890, HMC891, and HMC892 are monolithic microwave integrated circuit (MMIC) band-pass filters designed to meet the demanding requirements of advanced communications applications.
These band-pass filters are characterized by their exceptional microphonics attributed to their monolithic design, offering a dynamically adjustable solution for advanced communications applications. Notably, the tunable nature of these filters makes them a compelling alternative to physically large switched filter banks and cavity tuned filters.
The HMC890 is equipped with a user-selectable pass-band frequency that possesses a dB filter bandwidth of approximately 10%. Additionally, the ≥20 dB filter bandwidth is approximately 30%. The center frequency of the HMC890 can be adjusted within the range of 1.0 GHz to 1.9 GHz through the application of an analog tuning voltage varying between 0 V and 14 V.
Similarly, the HMC891 features a 3 dB filter bandwidth of approximately 9%, with a 20 dB filter bandwidth of approximately 23%. Its center frequency (fCENTER) can be varied between 1.95 GHz and 3.4 GHz by applying an analog tune voltage ranging from 0 V to 14 V.
On the other hand, the HMC892 is characterized by a 3 dB filter bandwidth of approximately 8.7% and a 20 dB filter bandwidth of approximately 23.8%. Its center frequency can be adjusted within the range of 3.45 GHz to 6.25 GHz through the application of an analog tuning voltage ranging from 0 V to 14 V.
In summary, the HMC890, HMC891, and HMC892 from Analog Devices offer versatile and high-performance solutions for test, measurement, and industrial equipment. With their compact form factor, user-selectable pass-band frequencies, and adjustable center frequencies through analog tuning, these monolithic microwave integrated circuits serve as efficient alternatives to larger switched filter banks and cavity tuned filters, catering to the diverse needs of RF and microwave applications.
Frequency – cutoff or center
1 GHz to 1.9 GHz
1.95 GHz to 3.4 GHz
3.45 GHz to 6.25 GHz
Amplitude settling time: 200 ns
Excellent wideband rejection: ≥30 dB
Single-chip replacement for mechanically tuned designs
32-lead, 5 mm x 5 mm, RoHS compliant LFCSP package
Industrial
Medical equipment
Test and measurement equipment
Radar satellite communications (SATCOM)
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