ADRF5702

RECOMMENDED FOR NEW DESIGNS

Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz

Analog Devices ADRF5702 Product Info

10 February 2026 5

Features

Frequency range: 50MHz to 20GHz
Attenuation range: 31.875dB with 0.125dB step size
Low insertion loss
- 1.4dB typical up to 6GHz (5V supply)
- 1.8dB typical up to 12GHz (5V supply)
- 2.6dB typical up to 20GHz (5V supply)
Attenuation accuracy: −(0.1 + 2.0% of attenuation state) typical up to 20GHz
Step error: −0.30dB typical up to 20GHz (5V supply)
High linearity
- Input P0.1dB
  - Attenuation state < 8dB: 32dBm typical (5V supply)
  - Attenuation state ≥ 8dB: 29dBm typical (5V supply)
- Input IP3
  - Attenuation state < 16dB): 55dBm typical (5V supply)
  - Attenuation state ≥ 16dB): 50dBm typical (5V supply)

High RF power handling
- 27dBm average (ATTIN)
- 32dBm peak (5V supply, attenuation state < 8dB)
- 29dBm peak (5V supply, attenuation state ≥ 8dB)
- 27dBm hot switching
RF amplitude settling time (50% triggered control to 0.05dB of final RF output): 140ns
Consistent return loss at all attenuation states
Single-supply operation: 5V or 3.3V
No low frequency spurs, and no internal voltage generation
Serial and parallel mode control, CMOS/LVTTL compatible
24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package

Part details & applications

The ADRF5702 is a 8-bit digital attenuator with a 31.875dB attenuation range and 0.125dB step size manufactured in a silicon on insulator (SOI) process.

This device operates from 50MHz to 20GHz with an insertion loss lower than 2.6dB and excellent attenuation accuracy. The ADRF5702 has RF input power handling capabilities of 27dBm average and 29dBm peak for all states from the ATTIN pin.

The ADRF5702 requires a single-supply voltage of 5V or 3.3V. The device does not support supply intermediate supply voltage levels except values given in the Electrical Specifications section.

The device features serial or parallel mode control and complementary metal-oxide semiconductor (CMOS)-/low voltage transistor to transistor logic (LVTTL)-compatible controls.

The ADRF5702 RF ports are designed to match a characteristic impedance of 50Ω.

The ADRF5702 comes in a 24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package and can operate from −40°C to +105°C.

APPLICATIONS

Industrial scanners
Test and instrumentation
Cellular infrastructure: 5G millimeter wave
Military radios, radars, and electronic counter measures (ECMs)
Microwave radios and very small aperture terminals (VSATs)

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