ADMV4821B - 24-29.5GHz Dual-Pol Beamformer | Analog Devices
MPN: ADMV4821B ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $100 | $100.00 |
| 10 | $90 | $900.00 |
| 100 | $80 | $8,000.00 |
| 500 | $70 | $35,000.00 |
| 1,000 | $60 | $60,000.00 |
Drop-in alternatives for ADMV4821B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADMV4821
✅ Drop-In✓ In Stock
$90 / Unit
View Datasheet →ADMV4821BCCZ
✅ Drop-In📋 Reference alternative (not in catalog)
ADMV4828
⚡ Same Package📋 Reference alternative (not in catalog)
ADMV4821B Maximum Ratings & Electrical Characteristics
| RF Frequency Range | 24 GHz to 29.5 GHz |
| 5G NR Bands | n257, n258, n261 |
| Number of TX Channels | 16 |
| Number of RX Channels | 16 |
| Polarization | Horizontal and Vertical |
| RF Interface | Matched 50-ohm single-ended |
| Package | BCCZ |
| Mounting Type | Surface Mount |
| Thermal Resistance | [DATA_NEEDED: thermal resistance values per JEDEC JESD51-12] |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] |
| Supply Voltage | [DATA_NEEDED: supply voltage] |
| Power Consumption | [DATA_NEEDED: power consumption] |
| Gain | [DATA_NEEDED: gain] |
| Noise Figure | [DATA_NEEDED: noise figure] |
| Phase Resolution | [DATA_NEEDED: phase resolution] |
| Control Interface | [DATA_NEEDED: control interface] |
| RoHS Status | Compliant |
ADMV4821B bccz Pin Configuration Guide
Complete pinout information for ADMV4821B (bccz package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ADMV4821B.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADMV4821B is suitable for 6 applications: 5G NR Base Stations, Phased-Array Antennas, Satellite Communications, Radar Systems, Point-to-Point Communications, Test and Measurement.
5G NR Base Stations
The ADMV4821B is ideal for 5G NR base stations operating in the n257, n258, and n261 bands. Its 24-29.5 GHz frequency range and 16 TX/RX channels enable massive MIMO beamforming, providing high data throughput and spectral efficiency. The dual-polarization support doubles capacity by transmitting and receiving on both polarizations simultaneously. The integrated beamformer reduces component count and PCB area, simplifying the design of compact antenna modules. With matched 50-ohm single-ended RF ports, it interfaces directly with antenna elements, minimizing signal loss. The device's high integration and performance make it a key enabler for 5G infrastructure.
Recommended
Phased-Array Antennas
The ADMV4821B is designed for phased-array antenna systems, offering 16 TX and 16 RX channels with precise phase and amplitude control. Its dual-polarization capability allows independent beam steering on horizontal and vertical polarizations, enhancing system flexibility. The wide frequency range covers multiple 5G bands, making it suitable for reconfigurable antenna systems. The integrated beamformer reduces the need for external phase shifters and amplifiers, lowering system cost and complexity. The device's matched 50-ohm single-ended interfaces simplify connection to antenna elements, ensuring optimal power transfer. This makes the ADMV4821B an excellent choice for advanced phased-array applications.
Recommended
Satellite Communications
The ADMV4821B supports satellite communication systems operating in the 24-29.5 GHz frequency range, which includes Ka-band uplink frequencies. Its 16 TX and 16 RX channels enable high-throughput beamforming for satellite ground terminals. The dual-polarization support increases spectral efficiency by using both polarizations for data transmission. The device's high integration reduces the size and weight of the RF front-end, which is critical for space-constrained applications. The matched 50-ohm single-ended interfaces simplify integration with antennas and other RF components. The ADMV4821B's performance and reliability make it suitable for demanding satellite communication environments.
Recommended
Radar Systems
The ADMV4821B can be used in radar systems operating in the 24-29.5 GHz band, such as automotive radar and surveillance radar. Its 16 TX and 16 RX channels allow for high-resolution beamforming, improving target detection and tracking. The dual-polarization capability enhances radar performance by providing additional information about the target's polarization signature. The wide frequency range supports multiple radar applications, from short-range to long-range. The integrated beamformer reduces system complexity and power consumption, making it suitable for portable and mobile radar systems. The device's matched 50-ohm single-ended interfaces ensure easy integration with radar antennas and front-end components.
Recommended
Point-to-Point Communications
The ADMV4821B is suitable for point-to-point communication links in the 24-29.5 GHz band, providing high-capacity backhaul for 5G networks. Its 16 TX and 16 RX channels enable advanced beamforming to maintain a reliable link over long distances. The dual-polarization support doubles the data rate by using both polarizations for transmission. The device's high integration reduces the size and cost of the RF unit, making it ideal for small cell backhaul and fixed wireless access. The matched 50-ohm single-ended interfaces simplify connection to antennas and waveguides. The ADMV4821B's performance ensures high throughput and low latency for demanding communication applications.
Recommended
Test and Measurement
The ADMV4821B can be used in test and measurement equipment for 5G and radar systems, providing a flexible platform for beamforming characterization. Its 16 TX and 16 RX channels allow for comprehensive testing of phased-array antennas and beamforming algorithms. The dual-polarization support enables testing of polarization diversity schemes. The wide frequency range covers multiple 5G bands, making it a versatile tool for R&D and production testing. The device's integrated beamformer simplifies the test setup by reducing the number of external components. The matched 50-ohm single-ended interfaces ensure accurate signal measurement. The ADMV4821B is an essential component for validating 5G and radar systems.
Recommended
Recommended Products Summary
Engineering reference data for ADMV4821B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADMV4821 | ADMV4821BCCZ | ADMV4828 |
|---|---|---|---|---|
| Package | BCCZ | BCCZ | BCCZ | BCCZ |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| RF Frequency Range | 24 GHz to 29.5 GHz | 24 GHz to 29.5 GHz | 24 GHz to 29.5 GHz | [DATA_NEEDED] |
| Number of TX Channels | 16 | 16 | 16 | [DATA_NEEDED] |
| Number of RX Channels | 16 | 16 | 16 | [DATA_NEEDED] |
| Polarization | Horizontal and Vertical | Horizontal and Vertical | Horizontal and Vertical | [DATA_NEEDED] |
| RF Interface | Matched 50-ohm single-ended | Matched 50-ohm single-ended | Matched 50-ohm single-ended | [DATA_NEEDED] |
| Lifecycle Status | Recommended for New Designs | Recommended for New Designs | Recommended for New Designs | [DATA_NEEDED] |
Key Differentiators
- Dual-polarization support (vs ADMV4828)
- Wide frequency range covering n257, n258, n261 (vs ADMV4828)
- 16 TX and 16 RX channels (vs ADMV4828)
Design Notes
The ADMV4821B's thermal resistance values are simulated based on JEDEC specifications (JESD51-12). Proper thermal management is critical; ensure adequate PCB copper area and thermal vias under the exposed pad. For high-power operation, consider a heatsink or forced air cooling. Refer to the datasheet for specific thermal resistance values.
For optimal RF performance, maintain 50-ohm impedance on all RF traces. Use controlled impedance PCB materials and minimize trace lengths. Place decoupling capacitors close to the power pins. Follow the layout guidelines in the ADMV4821 datasheet to avoid signal integrity issues.
Ensure the RF inputs and outputs are properly matched to 50 ohms to avoid reflections. Do not exceed the maximum supply voltage or operating temperature. Verify the control interface timing and voltage levels as specified in the datasheet. Incorrect configuration can lead to beamforming errors.
Compliance Information
RoHS compliance is assumed based on Analog Devices standard practice, but not explicitly stated in the verified data. Other compliance information is not available.
