ADRF5703

RECOMMENDED FOR NEW DESIGNS

Silicon Digital Attenuator, 0.25dB LSB, 7-Bit, 9kHz to 20GHz

Analog Devices ADRF5703 Product Info

10 February 2026 6

Features

Frequency range: 9kHz to 20GHz
Attenuation range: 31.75dB with 0.25dB step size
Low insertion loss
- 1dB typical up to 6GHz
- 1.3dB typical up to 12GHz
- 1.7dB typical up to 20GHz
Attenuation accuracy: −(4% of the attenuation state) or +(0.1) typical up to 20GHz
Step error: 0.20dB typical up to 20GHz
High linearity
- Input P0.1dB
  - Attenuation state < 16dB: 33dBm typical at ATTIN
  - Attenuation state ≥ 16dB: 31dBm typical at ATTIN
- Input IP3: 55dBm typical at ATTIN

High RF power handling
- 27dBm average at ATTIN
- 30dBm peak at ATTIN
- 27dBm hot switching at ATTIN
RF amplitude settling time (50% triggered control to 0.05dB of final RF output): 1μs typical
Consistent return loss at all attenuation states
Single-supply operation with derated power handling
No low frequency spurs and no internal voltage generation
Serial and parallel mode control, CMOS- and LVTTL-compatible
24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package

Part details & applications

The ADRF5703 is a 7-bit digital attenuator with a 31.75dB attenuation range and 0.25dB step size manufactured in a silicon on insulator (SOI) process.

This device operates from 9kHz to 20GHz with an insertion loss better than 1.7dB and excellent attenuation accuracy. The ADRF5703 has RF input power handling capabilities of 27dBm average and 30dBm peak for all states from the ATTIN pin.

The ADRF5703 operates with a dual-supply voltage +3.3V and −3.3V. The device can also operate with a single-supply voltage (V_DD) applied while the negative supply voltage (V_SS) is tied to ground. In this operating condition, the small signal performance is maintained while the switching characteristics, linearity, and power handling performance are derated, see Table 2 in the Data Sheet.

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

The ADRF5703 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, electronic counter measures (ECMs)
Microwave radios and very small aperture terminals (VSATs)

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