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Analog Devices Inc. 109026-HMC482ST89
- Part No.:
- 109026-HMC482ST89
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
109026-HMC482ST89.pdf
- Description:
- BOARD EVAL HMC482ST89E
- Quantity:
- Payment:
- Shipping:
Inventory:1,563
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Product details
Overview
109026-HMC482ST89 from Analog Devices (formerly Hittite Microwave) is a SiGe HBT MMIC gain block amplifier operating from DC to 5 GHz, delivering +22 dBm P1dB output power, 20 dB small-signal gain, and +36 dBm OIP3 at 8 V supply. It serves as a cascadable 50 Ω RF/IF gain stage or LO/PA driver in microwave radio and test equipment.
For engineers reviewing the 109026-HMC482ST89 datasheet, 109026-HMC482ST89 pinout, 109026-HMC482ST89 application, or 109026-HMC482ST89 equivalent, key selection criteria include its SOT89 package, single-supply operation (6–12 V), temperature-stable Darlington feedback architecture, and verified performance across -40°C to +85°C.
Technical Context
The 109026-HMC482ST89 implements a SiGe HBT Darlington feedback pair topology, enabling stable gain over temperature (0.008–0.016 dB/°C) and reduced process sensitivity. Its DC-coupled RFIN and RFOUT pins require external blocking capacitors, while bias is set via a single resistor (e.g., 27 Ω at 8 V for 110 mA ICQ).
It features 50 Ω matched input/output impedances, >16 dB reverse isolation (DC–5 GHz), and operates with no external matching components across its full bandwidth. Thermal resistance is 69 °C/W (junction-to-lead), supporting continuous dissipation up to 0.94 W at 85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| P1dB Output Power | +22 dBm typical (10.5–22.5 dBm across 0.5–5 GHz); enables direct drive of PA stages or mixers without intermediate amplification. |
| Small-Signal Gain | 20 dB typical (8–19 dB across 0–5 GHz); supports cascaded gain distribution in multi-stage RF chains. |
| OIP3 | +36 dBm typical (28–36 dBm across 0.5–5 GHz); ensures low intermodulation distortion in wideband cellular and WiMAX transceivers. |
| Noise Figure | 4–5.5 dB (DC–5 GHz); suitable for IF gain blocks where signal-to-noise preservation is critical before downconversion. |
| Supply Current (ICQ) | 110 mA at VS = 8 V, RBias = 27 Ω; enables predictable thermal design and stable DC bias under temperature variation. |
| Operating Temperature | -40°C to +85°C; validated performance across industrial and outdoor wireless infrastructure environments. |
| Input/Output Return Loss | ≥15 dB (DC–1 GHz), ≥18 dB (1–5 GHz) input; ≥8 dB (4–5 GHz) output; simplifies integration into 50 Ω systems with minimal tuning. |
Pinout & Package
109026-HMC482ST89 is housed in an industry-standard SOT89 package with exposed thermal pad (low-stress injection-molded plastic, Sn/Pb lead finish, MSL1). All ground pins and package bottom must be soldered to PCB RF ground per RF layout best practices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RFIN | DC-coupled RF input requiring external blocking capacitor; designed for 50 Ω source impedance. |
| 2, 4 | GND | RF and DC ground terminals; must connect directly to ground plane with multiple vias for low-inductance return path. |
| 3 | RFOUT | RF output and DC bias node (VCC); requires external blocking capacitor and decoupling to suppress supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Darlington feedback pair architecture | Reduces gain variation to ≤0.016 dB/°C and minimizes need for temperature-compensating bias networks. |
| Cascadable 50 Ω I/Os | Enables plug-and-play integration into multi-stage RF paths without external matching or isolation components. |
| Single-supply operation (6–12 V) | Supports flexible system-level power rail allocation; bias resistor value scales linearly with supply voltage (e.g., 27 Ω @ 8 V). |
| High OIP3 (+36 dBm) and low NF (4 dB) | Permits use in both high-linearity transmit chains and low-noise receive IF gain blocks within same platform. |
| ESD robustness (HBM Class 1A) | Withstands ≥250 V HBM; reduces handling risk during assembly and prototyping without additional protection circuitry. |
Applications
| Cellular / PCS / 3G Base Stations | Fixed Wireless Access (FWA) Radios |
|---|---|
|
Use Scenario: Intermediate frequency (IF) gain stage in macrocell BTS transceivers operating at 1.9 GHz. IC Role / Device Role / Timing Role: RF gain block providing 20 dB fixed gain between mixer and DAC/ADC interface. Use Value: Maintains signal integrity with <4.5 dB noise figure and +35 dBm OIP3, reducing adjacent channel interference in dense spectrum deployments. |
Use Scenario: LO driver stage in point-to-point 5.8 GHz FWA radios with integrated synthesizers. IC Role / Device Role / Timing Role: Low-phase-noise LO buffer amplifier driving quadrature modulator inputs. Use Value: Delivers +22 dBm P1dB with <0.01 dB/°C gain drift, ensuring consistent LO power and modulation accuracy across outdoor temperature swings. |
| WLAN / WiMAX Subscriber Units | Microwave Radio Test Equipment |
|
Use Scenario: Transmit chain driver in 2.4/5.2 GHz WiMAX CPE units with OFDMA modulation. IC Role / Device Role / Timing Role: Cascadable gain block preceding final PA, operating at 3.5 V supply with 27 Ω bias. Use Value: Provides 15 dB gain and +32 dBm OIP3 at 3.5 GHz, meeting spectral mask requirements without digital predistortion. |
Use Scenario: Signal conditioning stage in broadband vector network analyzer (VNA) receiver front-end. IC Role / Device Role / Timing Role: Wideband IF amplifier covering DC–5 GHz with flat gain response and calibrated group delay. Use Value: Enables accurate amplitude and phase measurement with <±0.5 dB gain flatness and >16 dB reverse isolation across full band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF gain block applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC482ST89E | RoHS-compliant variant with matte tin plating, MSL1 rating (260 °C peak reflow), identical electrical specs and pinout. | Required for lead-free manufacturing; same thermal and RF performance; no layout change needed. | Select HMC482ST89E for new RoHS-compliant designs; legacy HMC482ST89 remains viable for Sn/Pb assembly. |
| QPL9547 | 5–6000 MHz GaAs pHEMT gain block; +21.5 dBm P1dB, 15.5 dB gain, 3.3 V supply; smaller 2×2 mm DFN package. | Better suited for compact, low-voltage portable radios; lacks DC coupling and has higher NF (5.5 dB). | Choose QPL9547 when board space or 3.3 V supply constraints dominate; retain 109026-HMC482ST89 for DC-coupled, high-linearity, wide-temperature industrial use. |
Compared with HMC482ST89E, the 109026-HMC482ST89 offers identical RF performance but requires Sn/Pb assembly; versus QPL9547, it provides superior DC coupling, lower noise, and wider temperature stability at the cost of larger SOT89 footprint and higher supply voltage.
Availability
109026-HMC482ST89 is available at Aetrix Electronics and suitable for cellular base stations, microwave radio links, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 109026-HMC482ST89 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Hittite Microwave in 2014 and maintains its high-frequency RF product portfolio, including MMIC amplifiers, mixers, and PLLs for defense, communications, and instrumentation.
The 109026-HMC482ST89 belongs to Hittite's legacy SiGe HBT gain block family, engineered for wideband, temperature-stable RF amplification in infrastructure-grade wireless systems.
FAQ
What is the recommended bias resistor for 109026-HMC482ST89 at 8 V supply?
The recommended bias resistor for 109026-HMC482ST89 at 8 V supply is 27 Ω, configured to deliver 110 mA collector quiescent current (ICQ). This value is specified in the datasheet's "Recommended Bias Resistor Values" table and ensures stable operation across temperature with minimal gain drift. The resistor must be rated for at least 0.5 W to handle power dissipation safely.
Does 109026-HMC482ST89 support DC-coupled operation?
Yes, 109026-HMC482ST89 supports DC-coupled operation on both RFIN and RFOUT pins, as confirmed by the "Pin Descriptions" section stating RFIN is DC coupled and RFOUT serves as DC bias node. External DC blocking capacitors are required on both ports to prevent DC level mismatch with adjacent stages, but the internal core operates with no AC coupling constraints.
What is the maximum RF input power rating for 109026-HMC482ST89?
The absolute maximum RF input power rating for 109026-HMC482ST89 is +14 dBm when VCC = +5 Vdc, per the "Absolute Maximum Ratings" table. Exceeding this level risks permanent damage to the SiGe HBT transistor, especially under sustained CW conditions. For reliable operation, input power should remain below compression onset (typically ≤−10 dBm for linear gain region).
Can 109026-HMC482ST89 be used in 5G sub-6 GHz infrastructure?
Yes, 109026-HMC482ST89 is validated for operation up to 5 GHz with measured gain, IP3, and noise figure across 3.3–4.2 GHz bands used in 5G NR n77/n78. Its +22 dBm P1dB and +34 dBm OIP3 at 3.5 GHz meet linearity requirements for active antenna systems, though thermal management must account for its 69 °C/W junction-to-lead resistance in enclosed enclosures.
Is there an evaluation board available for 109026-HMC482ST89?
Yes, the 109026 evaluation PCB is specifically designed for 109026-HMC482ST89 and documented in the datasheet's "Evaluation PCB" section. It uses Rogers 4350 substrate, includes SMA connectors (J1–J2), DC pins (J3–J4), and optimized 50 Ω microstrip routing. The board supports thermal mounting to a heatsink and is available directly from Analog Devices upon request using reference number 109026.
109026-HMC482ST89 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Amplifier
- Frequency:
- 0Hz ~ 5GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC482ST89
109026-HMC482ST89 FAQ
1.How can I place an order for 109026-HMC482ST89 through Aetrix?
Please submit a Request for Quotation (RFQ) for 109026-HMC482ST89 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 109026-HMC482ST89 reliable?
The price and inventory of 109026-HMC482ST89 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 109026-HMC482ST89 is usually 5 days.
3.What payment methods are accepted for 109026-HMC482ST89?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 109026-HMC482ST89 transactions.
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4.How is shipping managed for 109026-HMC482ST89?
109026-HMC482ST89 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 109026-HMC482ST89 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 109026-HMC482ST89?
For technical support, including 109026-HMC482ST89 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 109026-HMC482ST89 requirements.
6.How does Aetrix verify that 109026-HMC482ST89 is sourced from the original manufacturer or authorized distributors?
All 109026-HMC482ST89 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 109026-HMC482ST89 meets industry standards.
7.What is the process for return or replacement of 109026-HMC482ST89?
All 109026-HMC482ST89 units undergo pre-shipment inspection (PSI). If there is an issue with 109026-HMC482ST89, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 109026-HMC482ST89 part is unused and in its original packaging.
Return procedure for 109026-HMC482ST89:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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