
Analog Devices Inc. HMC891 Tunable Band-Pass Filters
Analog Devices Inc. HMC891 Tunable Band-Pass Filters are Monolithic Microwave Integrated Circuits (MMICs) that feature a user selectable pass-band frequency. The center frequency can vary between 1.95GHz and 3.4GHz by applying an analog tuning voltage between 0V and 14V. The HMC891 band-pass filters can be used as a much smaller alternative to physically large switched filter banks and cavity tuned filters. These monolithic designed filters provide a dynamically adjustable solution in advanced communication applications. Some of the applications include test and measurement equipment, military RADAR and electronic warfare, satellite communications, industrial, and medical equipment.Features
- User selectable pass-band frequency
- 200ns amplitude settling time
- ≥30dB excellent wideband rejection
- 3dB filter bandwidth is approximately 9%
- 20dB filter bandwidth is approximately 23%
- Center frequency can vary between 1.95GHz and 3.4GHz
- -40°C to 85°C operating temperature range
- Single chip replacement for mechanically tuned designs
- 32 lead and 5mm x 5mm dimensions
- RoHS compliant LFCSP package
Applications
- Test and measurement equipment
- Military RADAR
- Electronic warfare/electronic counter-measures
- Satellite communications and space
- Industrial equipment
- Medical equipment
Functional Block Diagram

Typical Application Circuit

Published: 2018-12-26
| Updated: 2023-02-15