ADL5545 - 24dB RF/IF Gain Block 30MHz-6GHz | Analog Devices
MPN: ADL5545 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.1 | $31.00 |
| 100 | $2.6 | $260.00 |
| 500 | $2.2 | $1,100.00 |
| 1,000 | $1.83 | $1,830.00 |
Drop-in alternatives for ADL5545 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADL5544ARKZ-R7
β Drop-Inπ Reference alternative (not in catalog)
ADL5546ARKZ-R7
β Drop-Inπ Reference alternative (not in catalog)
ADL5523ARKZ-R7
β Drop-Inπ Reference alternative (not in catalog)
GVA-63+
β Drop-Inπ Reference alternative (not in catalog)
PGA-103+
β Drop-Inπ Reference alternative (not in catalog)
ADL5545 Maximum Ratings & Electrical Characteristics
| Frequency Range | 30 MHz to 6 GHz |
| Gain | 24.1 dB |
| OIP3 | 36 dBm |
| Supply Voltage | 5 V |
| Supply Current | 56 mA |
| Input Return Loss | [DATA_NEEDED: input return loss] |
| Output Return Loss | [DATA_NEEDED: output return loss] |
| Noise Figure | [DATA_NEEDED: noise figure] |
| Output Power (P1dB) | [DATA_NEEDED: P1dB] |
| Package | SOT-89-3 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40Β°C to +85Β°C |
| RoHS Status | Compliant |
| Input/Output Impedance | 50 Ξ© |
| Gain Flatness | [DATA_NEEDED: gain flatness] |
ADL5545 Pin Configuration
| Pin 1 | RFIN β RF input, internally matched to 50 Ξ© |
| Pin 2 | GND β Ground, exposed pad |
| Pin 3 | RFOUT β RF output, internally matched to 50 Ξ© |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADL5545 is suitable for 6 applications: Cellular Base Station Transceivers, Wireless Infrastructure, Test and Measurement Equipment, RF/IF Signal Chain Amplification, General Purpose RF Amplification, 5G Sub-6 GHz Infrastructure.
Cellular Base Station Transceivers
The ADL5545 is ideal for cellular base station transceivers due to its wide frequency range of 30 MHz to 6 GHz and high OIP3 of 36 dBm. It provides a fixed gain of 24.1 dB, which is stable over temperature and supply, ensuring consistent performance in the RF front-end. The amplifier is internally matched to 50 Ξ©, simplifying integration into the signal chain. Its low supply current of 56 mA is beneficial for power-sensitive designs. The high linearity minimizes intermodulation distortion, which is critical for multi-carrier and high-order modulation schemes used in 4G and 5G systems.
Recommended
Wireless Infrastructure
In wireless infrastructure, the ADL5545 serves as a general-purpose gain block in both transmit and receive paths. Its broadband operation from 30 MHz to 6 GHz covers various communication standards, including Wi-Fi, LTE, and 5G. The device's high OIP3 ensures low distortion in the presence of strong signals, while its stable gain over temperature and supply voltage maintains system performance. The SOT-89 package is compact and easy to assemble, making it suitable for high-volume production. The internal 50 Ξ© matching reduces external component count, lowering BOM cost and board space.
Recommended
Test and Measurement Equipment
The ADL5545 is well-suited for test and measurement equipment such as spectrum analyzers and signal generators, where flat gain and high linearity are essential. Its frequency range of 30 MHz to 6 GHz covers many test frequencies, and its 24.1 dB gain provides sufficient amplification for signal conditioning. The device's stable gain over temperature ensures accurate measurements over a wide operating range. The SOT-89 package allows for easy integration into compact instrument designs. The low supply current is advantageous for portable test equipment.
Recommended
RF/IF Signal Chain Amplification
The ADL5545 is commonly used as an IF amplifier in superheterodyne receivers, providing gain at intermediate frequencies. Its broadband operation from 30 MHz to 6 GHz allows it to be used in various IF frequencies, such as 70 MHz, 140 MHz, or 450 MHz. The high OIP3 of 36 dBm ensures that the amplifier does not introduce significant distortion, preserving signal integrity. The device's internal 50 Ξ© matching simplifies the interface with mixers and filters. The fixed gain of 24.1 dB reduces the need for variable gain stages in some designs.
Recommended
General Purpose RF Amplification
The ADL5545 is a versatile gain block suitable for general-purpose RF amplification in a wide range of applications, including radar, satellite communications, and industrial RF systems. Its wide frequency range and stable gain make it a reliable choice for signal boosting. The device's high linearity ensures minimal distortion, which is important for applications with stringent spectral requirements. The SOT-89 package is robust and easy to handle, and the internal 50 Ξ© matching simplifies PCB layout. The low supply current makes it suitable for battery-operated devices.
Recommended
5G Sub-6 GHz Infrastructure
The ADL5545 is well-suited for 5G sub-6 GHz infrastructure, covering frequencies from 3.3 GHz to 5 GHz. Its high OIP3 of 36 dBm is essential for handling the high peak-to-average power ratios of 5G waveforms. The device's stable gain over temperature and supply ensures consistent performance in outdoor base stations. The SOT-89 package is compact, allowing for dense PCB layouts in active antenna systems. The internal 50 Ξ© matching reduces component count, which is critical for cost-sensitive mass production.
Recommended
Recommended Products Summary
Engineering reference data for ADL5545 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADL5544ARKZ-R7 | ADL5546ARKZ-R7 | GVA-63+ |
|---|---|---|---|---|
| Package | SOT-89-3 | SOT-89-3 | SOT-89-3 | SOT-89-3 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Mini-Circuits |
| Gain | 24.1 dB | 20 dB | 26 dB | 20 dB |
| Frequency Range | 30 MHz to 6 GHz | 30 MHz to 6 GHz | 30 MHz to 6 GHz | 10 MHz to 6 GHz |
| OIP3 | 36 dBm | 36 dBm | 36 dBm | 38 dBm |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Supply Current | 56 mA | 56 mA | 56 mA | 68 mA |
| Input/Output Impedance | 50 Ξ© | 50 Ξ© | 50 Ξ© | 50 Ξ© |
Key Differentiators
- Higher gain than ADL5544 (vs ADL5544ARKZ-R7)
- Lower gain than ADL5546 (vs ADL5546ARKZ-R7)
- Wider frequency range than ADL5523 (vs ADL5523ARKZ-R7)
Design Notes
Ensure proper grounding of the exposed pad on the SOT-89 package. Use multiple vias to connect the pad to the ground plane to minimize thermal resistance and inductance. Place AC coupling capacitors close to the input and output pins to minimize parasitic effects.
The ADL5545 requires a 5 V supply and draws 56 mA. Use a low-inductance bypass capacitor (e.g., 100 pF and 0.1 uF) near the supply pin to ensure stable operation. A bias inductor (e.g., 1 uH) is needed on the output to supply DC while blocking RF.
The ADL5545 dissipates approximately 280 mW at 5 V and 56 mA. The SOT-89 package has a thermal resistance of about 50Β°C/W, so ensure adequate copper area on the PCB for heat sinking. For high ambient temperatures, consider adding thermal vias or a heatsink.
Compliance Information
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification indicated.
