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Analog Devices Inc. 108537-HMC499LC4
- Part No.:
- 108537-HMC499LC4
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
108537-HMC499LC4.pdf
- Description:
- EVAL BOARD HMC499LC4
- Quantity:
- Payment:
- Shipping:
Inventory:4,377
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Product details
Overview
108537-HMC499LC4 from Analog Devices (formerly Hittite Microwave) is a GaAs PHEMT MMIC medium power amplifier die operating from 21 to 32 GHz, delivering 16 dB gain, +24 dBm P1dB, and +33 dBm output IP3 at +5 V supply. It features 50 Ω matched input/output, -55 °C to +85 °C operating temperature, and is designed for integration into multi-chip modules in millimeter-wave radio systems.
For engineers reviewing the 108537-HMC499LC4 datasheet, 108537-HMC499LC4 pinout, 108537-HMC499LC4 application, or 108537-HMC499LC4 equivalent, key selection criteria include RF bandwidth coverage (21–32 GHz), small-signal gain stability over temperature (±0.04 dB/°C), bias flexibility (Vgg adjustable from –2 V to 0 V), and die-level thermal resistance (60 °C/W).
Technical Context
The 108537-HMC499LC4 implements a three-stage GaAs PHEMT amplifier architecture with fully integrated DC bias paths and on-die matching networks. Its 50 Ω input/output impedance eliminates external matching components across the full 21–32 GHz band, and gate bias (Vgg) is externally adjustable to set Idd = 200 mA at +5 V.
Thermal management relies on direct backside grounding via gold-metallized die bottom, requiring eutectic or conductive epoxy mounting to an RF ground plane. Bonding uses 0.025 mm gold wire with ≤0.31 mm length to minimize parasitic inductance and preserve high-frequency performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 21–32 GHz - supports full E-band operation without tuning or reconfiguration. |
| Small-Signal Gain | 16 dB typical - enables single-stage amplification in point-to-point radio front-ends. |
| P1dB Output Power | +24 dBm - delivers sufficient linear power for VSAT transmit chains before digital predistortion. |
| Output IP3 | +33 dBm - ensures low intermodulation distortion in multi-carrier microwave links. |
| Noise Figure | 5.0 dB typical at +25 °C - suitable as driver stage where noise contribution must be minimized. |
| Supply Voltage | +5 V - compatible with standard GaAs MMIC bias rails and simplifies power system design. |
| Die Size | 2.04 × 1.09 × 0.1 mm - enables compact MCM integration with minimal footprint and parasitic capacitance. |
Pinout & Package
108537-HMC499LC4 is supplied as a bare die in GP-2 gel pack packaging, with gold metallization on bond pads and backside. Die thickness is 0.1 mm (0.004"), and backside serves as RF/DC ground reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIN (Pad 1) | AC-coupled RF input | Internally matched to 50 Ω; requires no external matching network from 21–32 GHz. |
| Vdd1, Vdd2, Vdd3 (Pads 2–4) | Drain supply terminals | Three independent +5 V supply inputs with internal current sharing; each requires 100 pF + 0.01 µF bypassing. |
| RFOUT (Pad 5) | AC-coupled RF output | Internally matched to 50 Ω; supports direct connection to microstrip output line. |
| Vgg (Pad 6) | Gate bias control | Adjustable from –2 V to 0 V to set Idd = 200 mA; requires 100 pF + 0.01 µF bypassing. |
| Die Bottom | RF/DC ground reference | Gold-metallized surface; must be soldered or epoxied directly to ground plane for thermal and RF integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 50 Ω matching | Eliminates external matching components across 21–32 GHz, reducing layout complexity and insertion loss. |
| Adjustable gate bias (Vgg) | Enables precise Idd control (200 mA typ.) across process and temperature variations without redesign. |
| Low gain variation vs. temp | ±0.04 dB/°C max - maintains stable gain in outdoor military and space environments. |
| Backside ground metallization | Provides low-inductance RF return path and thermal conduction path (60 °C/W channel-to-bottom). |
| ESD-protected handling | Class 1C (≤1000 V HBM); requires strict ESD protocols during assembly and test. |
Applications
| Point-to-Point Radios | VSAT Terminals |
|---|---|
Use Scenario: High-capacity licensed E-band backhaul links operating at 24–28 GHz with 1 Gbps+ throughput. IC Role / Device Role / Timing Role: Medium-power driver amplifier in transmit chain, placed after upconverter and before antenna feed. Use Value: Delivers +24 dBm P1dB and +33 dBm IP3 to meet spectral mask requirements while maintaining 16 dB gain margin for link budget headroom. | Use Scenario: Ku/Ka-band satellite terminal uplink stages requiring broadband linear amplification. IC Role / Device Role / Timing Role: Final-stage power amplifier in solid-state power amplifier (SSPA) module for Ka-band uplink (29–31 GHz). Use Value: Enables compact, thermally efficient SSPA design due to 2.04 × 1.09 mm die size and 60 °C/W thermal resistance. |
| Military Radar Front-Ends | Millimeter-Wave Test Equipment |
Use Scenario: Active electronically scanned array (AESA) T/R module transmit path in airborne radar systems. IC Role / Device Role / Timing Role: Driver amplifier preceding GaN final stage; operates at 27–31 GHz with wide temperature range support. Use Value: Stable gain (±0.04 dB/°C) and –55 °C to +85 °C operation ensure consistent beamforming accuracy across flight envelope. | Use Scenario: Signal source conditioning in vector network analyzers and millimeter-wave signal generators. IC Role / Device Role / Timing Role: Calibration reference amplifier in broadband test head assemblies covering 21–32 GHz. Use Value: 50 Ω matched I/O and low noise figure (5.0 dB) enable traceable, repeatable gain calibration without external tuners. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar medium-power GaAs MMIC amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC465LP3 | Lower frequency range (17–27 GHz), +22 dBm P1dB, 3.5 mm × 2.0 mm QFN package. | Not suitable for >27 GHz use; requires PCB footprint change and external matching. | Select when operating below 27 GHz and board-level assembly is preferred over die bonding. |
| Qorvo QPL9547 | SiGe-based, 24–34 GHz, +23 dBm P1dB, +32 dBm IP3, 1.4 × 1.0 mm DFN package. | Higher gain variation over temperature (±0.1 dB/°C); lower thermal resistance but no backside ground. | Choose for cost-sensitive commercial designs where die attach complexity must be avoided. |
Compared with HMC465LP3 and QPL9547, the 108537-HMC499LC4 offers superior high-frequency linearity (+33 dBm IP3) and tighter gain stability (±0.04 dB/°C) in a smaller die form factor, making it optimal for demanding E-band defense and satellite applications where performance outweighs assembly complexity.
Availability
108537-HMC499LC4 is available at Aetrix Electronics and suitable for point-to-point radios, VSAT terminals, military radar front-ends, and millimeter-wave test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 108537-HMC499LC4 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, Inc. (ADI) is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies, with deep heritage in microwave and millimeter-wave ICs through its acquisition of Hittite Microwave.
The 108537-HMC499LC4 belongs to ADI's legacy Hittite MMIC amplifier product line, engineered specifically for broadband, high-linearity millimeter-wave transmit applications in defense, satellite, and wireless infrastructure.
FAQ
What is the operating frequency range of the 108537-HMC499LC4?
The 108537-HMC499LC4 operates from 21 to 32 GHz, covering the upper Ka-band and lower Q-band. Its gain, return loss, and linearity specifications are guaranteed across this full range per the datasheet's frequency-banded electrical table, with typical gain of 16 dB and input/output return loss ≥8 dB.
How is bias applied to the 108537-HMC499LC4?
The 108537-HMC499LC4 requires +5 V DC applied to three drain pads (Vdd1–Vdd3) and adjustable gate voltage (Vgg) between –2 V and 0 V to achieve 200 mA supply current. External 100 pF and 0.01 µF bypass capacitors are mandatory on all Vdd and Vgg pads, and the die bottom must be grounded to RF/DC ground.
What is the thermal resistance and maximum channel temperature of the 108537-HMC499LC4?
The 108537-HMC499LC4 has a channel-to-die-bottom thermal resistance of 60 °C/W and a maximum channel temperature rating of 175 °C. Continuous power dissipation is rated at 1.50 W at 85 °C ambient, derating linearly above that temperature.
Can the 108537-HMC499LC4 be used without external matching components?
Yes - the 108537-HMC499LC4 features fully integrated 50 Ω input and output matching networks across 21–32 GHz. No external matching is required when used with 50 Ω microstrip lines and proper wire bonding (≤0.31 mm gold wire), as confirmed by S-parameter plots and test fixture data in the datasheet.
What packaging format is supplied for the 108537-HMC499LC4?
The 108537-HMC499LC4 is supplied as a bare die in GP-2 gel pack packaging. The die measures 2.04 × 1.09 × 0.1 mm, with gold-metallized bond pads and backside ground. Alternate packaging (e.g., tape-and-reel) is not standard and requires direct coordination with Analog Devices.
108537-HMC499LC4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Amplifier
- Frequency:
- 21GHz ~ 32GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC499LC4
108537-HMC499LC4 FAQ
1.How can I place an order for 108537-HMC499LC4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 108537-HMC499LC4 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 108537-HMC499LC4 reliable?
The price and inventory of 108537-HMC499LC4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 108537-HMC499LC4 is usually 5 days.
3.What payment methods are accepted for 108537-HMC499LC4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 108537-HMC499LC4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 108537-HMC499LC4?
108537-HMC499LC4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 108537-HMC499LC4 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 108537-HMC499LC4?
For technical support, including 108537-HMC499LC4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 108537-HMC499LC4 requirements.
6.How does Aetrix verify that 108537-HMC499LC4 is sourced from the original manufacturer or authorized distributors?
All 108537-HMC499LC4 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 108537-HMC499LC4 meets industry standards.
7.What is the process for return or replacement of 108537-HMC499LC4?
All 108537-HMC499LC4 units undergo pre-shipment inspection (PSI). If there is an issue with 108537-HMC499LC4, 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 108537-HMC499LC4 part is unused and in its original packaging.
Return procedure for 108537-HMC499LC4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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