AD8347ARUZ: High-Performance RF Demodulator IC for 800 MHz to 2.7 GHz Applications

The AD8347ARUZ from Analog Devices Inc. is a premium RF demodulator integrated circuit designed for demanding applications in the 800 MHz to 2.7 GHz frequency range. This advanced IC combines exceptional gain, low noise performance, and superior linearity, making it perfect for wireless communication systems, radar, RFID readers, and test equipment. In this comprehensive guide, we explore all aspects of this high-performance demodulator, including its technical specifications, applications, and advantages over competing solutions.

Product Overview and Key Features

As part of Analog Devices' renowned RF/IF and RFID product line, the AD8347ARUZ stands out as a top-tier demodulator solution. Its active status guarantees long-term availability for your design projects. The device excels at extracting information from carrier waves with remarkable precision, supporting both analog and digital modulation schemes.

Technical Specifications Deep Dive

Frequency Characteristics

• LO/RF Frequency Range: 800 MHz to 2.7 GHz (full coverage)
• Frequency Stability: 50 ppm over temperature
• Bandwidth: 1900 MHz total span

Performance Parameters

• Conversion Gain: 39.5 dB (typical)
• Noise Figure: 11 dB (optimized for low-noise applications)
• Output P1dB: -30 dBm (excellent linearity)
• Third-Order Intercept (OIP3): +5 dBm (superior signal handling)

Power Management

• Operating Voltage: 2.7V to 5.5V (wide range for flexibility)
• Current Consumption: 80 mA (efficient operation)
• Power-Down Mode: <1 A (for battery-sensitive applications)

Physical Characteristics

• Package: 28-lead TSSOP (4.4mm width)
• Mounting: Surface mount (RoHS compliant)
• Operating Temperature: -40 C to +85 C (industrial grade)

Detailed Applications

Wireless Infrastructure

The AD8347ARUZ is ideally suited for cellular base stations, small cells, and microwave backhaul systems operating in the 800 MHz, 900 MHz, 1.8 GHz, 2.1 GHz, and 2.6 GHz bands. Its high gain and excellent linearity make it perfect for 3G, 4G LTE, and emerging 5G applications.

Radar and Defense Systems

Military and aerospace applications benefit from the device's wide frequency coverage and robust performance in harsh environments. Typical uses include:

• Surveillance radar receivers
• Electronic warfare systems
• Avionics communication equipment

Test and Measurement

Laboratory-grade equipment manufacturers incorporate the AD8347ARUZ in:

• Spectrum analyzers
• Signal generators
• Wireless test systems
• Modulation analysis instruments

RFID and IoT Devices

The demodulator's excellent sensitivity (down to -80 dBm) makes it ideal for:

• UHF RFID readers (860-960 MHz)
• Industrial IoT gateways
• Smart sensor networks

Design Considerations

PCB Layout Recommendations

For optimal performance, follow these guidelines:

1. Use a solid ground plane beneath the IC
2. Implement proper RF shielding for sensitive circuits
3. Keep RF traces as short as possible
4. Use high-quality decoupling capacitors (0.1 F and 10 F recommended)

Thermal Management

While the 28-TSSOP package has good thermal characteristics, consider:

• Adding thermal vias for heat dissipation
• Maintaining ambient temperature below 85 C
• Monitoring junction temperature in high-power applications

Comparison with Competing Solutions

The AD8347ARUZ offers several advantages over similar devices:

Feature	AD8347ARUZ	Competitor A	Competitor B
Frequency Range	800-2700 MHz	900-2500 MHz	700-2200 MHz
Gain	39.5 dB	35 dB	32 dB
Noise Figure	11 dB	13 dB	15 dB
Package Size	28-TSSOP	32-QFN	24-SOIC

Purchasing and Support

The AD8347ARUZ is available through authorized distributors worldwide. Analog Devices provides comprehensive technical support including:

• Detailed datasheets and application notes
• Reference designs and evaluation boards
• SPICE models for simulation
• Direct engineering support for qualified customers

Conclusion

The AD8347ARUZ represents the pinnacle of RF demodulator technology, combining Analog Devices' expertise in high-frequency design with practical implementation features. Its unmatched combination of wide frequency coverage, high gain, low noise, and compact form factor makes it the ideal choice for engineers designing next-generation RF systems across multiple industries.

For more technical details, pricing information, or to request samples, visit our product page or contact our technical sales team today. Discover how the AD8347ARUZ can enhance your RF system performance while reducing design complexity and time-to-market.