ADMV8526ACCZ

Overview

The ADMV8526 is a digitally tunable RF band-pass filter with a center frequency range of 1.25 GHz to 2.60 GHz, controlled via an 8-bit value (256 states). It features a typical 3 dB bandwidth of 9% with ±2% adjustability and an insertion loss of 4 dB. The device provides 20 dB rejection at frequencies 16% away from the center frequency. It operates on a +3.2 V to +3.4 V supply (VDD) and a -2.6 V to -2.4 V supply (VSS), consuming 125 µA static current. Packaged in a compact 10 mm × 10 mm LGA-40 footprint, it supports SPI configuration.

Feature Summary

• Digitally tunable band-pass filtering with patent-pending interpolation technology for precise frequency selection
• Compact single-chip design replacing large switched filter banks and discrete component solutions
• Integrated internal state machine enabling rapid sequential tuning via SPI fast latch mode
• Low residual phase noise performance suitable for minimizing system interference

Applications

• Land mobile radios
• Test and measurement equipment
• Military radars and electronic warfare systems
• Satellite communications
• Industrial and medical equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature rating. Confirm that the procurement channel sources genuine components directly from Analog Devices or authorized distributors to avoid counterfeit parts. Check for moisture sensitivity level requirements during storage and handling prior to soldering.

Selection Notes

Select this component when a dynamically adjustable RF front-end solution is required within the 1.25 GHz to 2.60 GHz range. Ensure the system design accommodates the dual power supply requirements of +3.3 V and -2.5 V. Verify that the PCB layout guidelines support the 50 Ω impedance matching necessary for optimal RF performance and thermal dissipation through the exposed pad.

Part Context

The ADMV8526 belongs to the ADMV85xx series of digitally tunable filters from Analog Devices. This family utilizes monolithic microwave integrated circuit (MMIC) technology to provide compact alternatives to traditional bulky filter banks. The device integrates digital control logic with analog RF switching capabilities to enable software-defined frequency agility.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's official cross-reference tools or contact technical support for validated replacement options.