Analog Devices Launches ADRF5703 Wideband Silicon
Analog Devices has significantly enhanced its RF/microwave component portfolio with the introduction of the ADRF5703 silicon digital attenuator. This innovative product is specifically engineered for communications and military engineers, offering precise signal level control, excellent linearity, and high-power performance within a compact footprint.
A key differentiator of the ADRF5703 is its incredibly broad operating frequency range, spanning from 9 kHz to 20 GHz. At its core, the device features an advanced 7-bit design, fabricated using cutting-edge silicon-on-insulator (SOI) technology. This enables an impressive 31.75 dB attenuation range with a fine step increment of 0.25 dB, providing 128 distinct attenuation levels for unmatched system gain control flexibility.
Beyond its wide frequency and precise attenuation capabilities, the ADRF5703 delivers critical performance metrics such as low insertion loss, high attenuation accuracy (absolute error not exceeding ±4%), and a rapid RF amplitude settling time of just 1 µs. Its robust power handling and high linearity, exemplified by an Input IP3 of 55 dBm typical, further solidify its position as a high-performance solution for demanding RF applications.
Specifications
| Product | Function | Frequency Range | Attenuation Range | Attenuation Step | Insertion Loss (Max) | Settling Time | Input IP3 | Package | Operating Temp. |
|---|---|---|---|---|---|---|---|---|---|
| ADRF5703 | 7-Bit Digital Attenuator | 9 kHz to 20 GHz | 31.75 dB | 0.25 dB | 1.7 dB (up to 20 GHz) | 1 µs | 55 dBm typical | 24-pin LGA | -40°С to +105°С |
Key Features
- Wide operating frequency range from 9 kHz to 20 GHz.
- 7-bit digital attenuator design offering a 31.75 dB attenuation range.
- Fine attenuation step increment of 0.25 dB, providing 128 attenuation levels.
- Manufactured using advanced silicon-on-insulator (SOI) technology.
- Achieves excellent low insertion loss, with 1.0 dB typical up to 6 GHz and 1.7 dB typical up to 20 GHz.
- Ensures high precision with an absolute attenuation error of ±4% (±0.1 dB typical up to 20 GHz).
- Features a fast RF amplitude settling time of 1 µs (to within 0.05 dB).
- Offers high linearity with an Input P0.1dB of 33 dBm and Input IP3 of 55 dBm typical.
- Robust power handling, including 27 dBm average, 30 dBm peak, and 27 dBm hot switching power.
- Supports both serial and parallel control modes for flexible system integration.
- Compatible with standard CMOS and LVTTL logic interfaces for easy digital control.
- Housed in a compact 4.0 mm x 4.0 mm, 24-pin Land Grid Array (LGA) package.
- Specified for reliable operation across an extended industrial temperature range of -40°С to +105°С.
Applications
- Military radios for amplitude control in tactical communication equipment.
- Radar systems requiring precise calibration and processing of return signals.
- ECM (Electronic Countermeasure) systems demanding fast reaction to signals in electronic warfare conditions.
- Microwave radio links for proper signal transmission in telecommunications backhaul networks.
- VSAT (Very Small Aperture Terminal) communications systems for signal conditioning in satellite communication.
