LTC5555

RECOMMENDED FOR NEW DESIGNS

1.5GHz to 7GHz Programmable Gain Downconverting Mixer

Analog Devices LTC5555 Product Info

10 February 2026 6

Features

Optimized Gain Flatness from 2.5GHz to 7GHz
31dBm Output IP3
9dB Power Conversion Gain
15.5dB Adjustable Gain Range
SPI or Parallel Gain Control in 0.5dB Steps

Very Small Solution Size
3.3V Single Supply
Low Power and Shutdown Modes
28-Lead (4mm × 5mm) QFN Package

Part details & applications

The LTC5555 programmable gain downconverting mixer is ideal for receivers that require precise gain setting. The IC incorporates an active mixer and a digital IF VGA with 15.5dB gain control range. The IF gain is programmed in 0.5dB steps through the SPI or parallel interface.

An enable pin allows for fast turn-on and shutdown. A reduced power mode is also available.

An integrated RF transformer provides a single-ended 50Ω input. The differential LO input is designed for single-ended or differential drive. The differential IF output simplifies the interface to differential IF filters and amplifiers. The mixer is optimized for the 3GHz to 7GHz RF frequency range but may be used down to 1.5GHz with degraded performance.

Applications

3.6GHz, 4.8GHz and 5.8GHz Band Wireless Infrastructure Receivers
Wireless Repeaters
Military Radar and Communications Receivers
Test and Measurement Equipment
Software-Defined Radios

Subscribe to Welllinkchips !

Your Name

* Email