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Analog Devices Inc. HMC329A
- Part No.:
- HMC329A
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- Die
- Datasheet:
-
HMC329A.pdf
- Description:
- IC MIXER MIXER 22-38GHZ
- Quantity:
- Payment:
- Shipping:
Inventory:2,409
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Product details
Overview
HMC329A from Analog Devices is a GaAs MMIC double-balanced mixer operating from 22 GHz to 38 GHz, delivering 9–11 dB typical conversion loss, ≥36 dB LO-to-RF isolation, and DC–8 GHz IF bandwidth. It functions as both upconverter and downconverter in millimeter-wave point-to-point radios and test equipment without external bias or matching components.
For engineers reviewing the HMC329A datasheet, HMC329A pinout, HMC329A application, or HMC329A equivalent, this page provides verified RF performance data, thermal and ESD ratings, grounded die-bottom package interface details, and validated alternatives for Ka-band transceiver design.
Technical Context
The HMC329A employs a passive double-balanced topology with integrated balun structures optimized for high LO-to-RF (≥36 dB) and LO-to-IF (≥27 dB) suppression across its full 22–38 GHz band. Its monolithic GaAs construction enables operation with ≥13 dBm LO drive and eliminates dc bias requirements.
It supports both upper and lower sideband configurations in upconversion and downconversion modes, with measured IF bandwidth extending continuously from DC to 8 GHz and input IP3 ranging from 17 dBm (22–29 GHz) to 21 dBm (29–38 GHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | RF: 22–38 GHz; LO: 22–38 GHz; IF: DC–8 GHz - enables Ka-band transceivers without frequency gaps. |
| Conversion Loss | 9 dB typ (22–29 GHz), 11 dB typ (29–38 GHz) - defines signal path insertion loss in receiver front-ends. |
| LO-to-RF Isolation | 37 dB typ (22–29 GHz), 36 dB typ (29–38 GHz) - prevents LO leakage into antenna paths. |
| Input IP3 | 17 dBm typ (22–29 GHz), 21 dBm typ (29–38 GHz) - quantifies linearity under two-tone interference. |
| Package Dimensions | 0.87 × 0.58 × 0.102 mm - ultra-compact chip-scale form factor for mmWave PCB integration. |
| Operating Temp | −55°C to +85°C - qualified for outdoor wireless infrastructure and military environments. |
| Thermal Resistance | θJC = 170°C/W (C-7-5 package) - requires direct die-bottom grounding to manage 382 mW max dissipation. |
Pinout & Package
The HMC329A is supplied in a bare-die C-7-5 package with exposed die bottom serving as primary RF/dc ground. Mounting requires eutectic or conductive epoxy attachment to a thermally enhanced ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 7 & Die Bottom | GND | RF and DC ground reference; must be bonded directly to PCB ground plane for optimal isolation and thermal conduction. |
| 2 | LO | AC-coupled 50 Ω local oscillator port; accepts ≥13 dBm drive without external matching. |
| 3 | RF | AC-coupled 50 Ω radio frequency port; matched for broadband Ka-band signal routing. |
| 6 | IF | DC-coupled intermediate frequency port; supports DC–8 GHz output; limited to ±2 mA current sourcing/sinking. |
Key Features
| Feature | Design Value |
|---|---|
| Passive double-balanced architecture | Eliminates dc bias circuitry and external matching components, reducing BOM count and layout complexity. |
| Optimized balun structures | Deliver ≥36 dB LO-to-RF and ≥27 dB LO-to-IF isolation, minimizing spurious feedthrough in sensitive receivers. |
| DC–8 GHz IF bandwidth | Supports wide instantaneous bandwidth applications including radar pulse detection and high-data-rate modulation schemes. |
| Monolithic GaAs MMIC process | Ensures consistent performance across temperature (−55°C to +85°C) and frequency (22–38 GHz) without tuning. |
| Small chip size (0.87 × 0.58 mm) | Enables dense integration in phased-array antennas and compact test instrumentation modules. |
Applications
| Point-to-Point Radios | Millimeter-Wave Test Equipment |
|---|---|
Use Scenario: High-capacity backhaul links operating in unlicensed 24 GHz or licensed 28/39 GHz bands. IC Role / Device Role / Timing Role: Downconverter translating 28 GHz RF signals to 1–4 GHz IF for digitization and demodulation. Use Value: 9–11 dB conversion loss and >36 dB LO-to-RF isolation maintain SNR in multi-channel interference-limited deployments. |
Use Scenario: Vector network analyzer (VNA) and spectrum analyzer front-end modules requiring broadband mixing. IC Role / Device Role / Timing Role: Double-balanced mixer enabling calibrated IF output across 22–38 GHz with minimal image distortion. Use Value: DC–8 GHz IF bandwidth and <21 dBm input IP3 support wide dynamic range measurements of modulated mmWave signals. |
| Military Radar Sensors | V-SAT Terminals |
Use Scenario: Compact active electronically scanned array (AESA) radar transceivers requiring low-profile RF front-ends. IC Role / Device Role / Timing Role: Upconverter generating 35 GHz transmit waveforms from baseband IF inputs. Use Value: 13 dBm minimum LO drive tolerance and 21 dBm IP3 ensure clean pulse transmission under high-power pulsed conditions. |
Use Scenario: Outdoor satellite communication terminals operating in Ka-band (26.5–40 GHz) for enterprise connectivity. IC Role / Device Role / Timing Role: Downconverter extracting 1–8 GHz IF from received 30 GHz satellite downlink signals. Use Value: −55°C to +85°C operating range and robust ESD rating (1500 V HBM) sustain reliability in harsh environmental enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar double-balanced mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LP3E | Wider RF range (10–40 GHz), higher conversion loss (12–14 dB), larger 3×3 mm QFN package. | Better suited for multi-band lab instruments; less optimal for space-constrained Ka-band radios. | Select when broader frequency coverage outweighs size and loss constraints. |
| QPC1006 | Higher IF bandwidth (DC–12 GHz), 10 dB conversion loss (24–34 GHz), GaN-based, requires external bias. | Enables wider instantaneous bandwidth but adds power management complexity. | Choose for ultra-wide IF applications where added bias circuitry is acceptable. |
Compared with HMC1048LP3E and QPC1006, the HMC329A offers the smallest footprint (0.87×0.58 mm), lowest conversion loss in Ka-band, and true passive operation-making it optimal for miniaturized, low-power mmWave systems where board area and simplicity are critical.
Availability
HMC329A is available at Aetrix Electronics and suitable for point-to-point radios, millimeter-wave test equipment, and military radar sensors requiring stable component supply across extended temperature ranges and high-frequency performance consistency.
Supply support for HMC329A 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, and defense markets with precision signal processing solutions.
The HMC329A belongs to Analog Devices' Hittite Microwave MMIC product line, engineered specifically for millimeter-wave infrastructure and instrumentation where broadband linearity, isolation, and passive operation are essential.
FAQ
What is the recommended LO drive level for optimal performance of the HMC329A?
The HMC329A is specified for LO drive levels of 13 dBm or higher. At 13 dBm, it achieves 9–11 dB typical conversion loss and ≥36 dB LO-to-RF isolation across 22–38 GHz. Lower LO power increases conversion loss and degrades IP3; operation below 13 dBm is not characterized in the datasheet and may compromise linearity and noise figure.
Does the HMC329A require external dc bias or matching components?
No. The HMC329A is a fully passive double-balanced mixer with internal AC coupling on LO and RF ports and no dc bias requirement. It operates without external matching networks, filters, or bias tees-only proper RF grounding via the die bottom and pins 1, 4, 5, and 7 is required for specification compliance.
What is the maximum allowable IF current for the HMC329A?
The IF port (pin 6) of the HMC329A must not source or sink more than ±2 mA of current. Exceeding this limit risks die malfunction or permanent failure. For DC-coupled IF operation, ensure external circuitry limits current to within this range; for AC-coupled use above ~100 kHz, a series capacitor may be added to block dc.
How is thermal management handled for the HMC329A in high-power applications?
The HMC329A has a thermal resistance θJC of 170°C/W and a maximum continuous power dissipation of 382 mW at 85°C ambient. Effective thermal management requires direct eutectic or conductive epoxy bonding of the die bottom to a low-thermal-resistance PCB ground plane, with attention to microstrip substrate thickness and copper pour design per Analog Devices' mounting guidelines.
Can the HMC329A be used for both upconversion and downconversion?
Yes. The HMC329A is a bidirectional double-balanced mixer. As a downconverter, it translates 22–38 GHz RF to DC–8 GHz IF; as an upconverter, it translates DC–8 GHz IF to 22–38 GHz RF. Both modes are fully characterized in the datasheet, including sideband-selective performance, isolation, and spurious response data.
HMC329A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tray
- Product Status:
- Active
- RF Type:
- General Purpose
- Frequency:
- 22GHz ~ 38GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 14dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
HMC329A FAQ
1.How can I place an order for HMC329A through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC329A 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 HMC329A reliable?
The price and inventory of HMC329A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC329A is usually 5 days.
3.What payment methods are accepted for HMC329A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC329A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC329A?
HMC329A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC329A 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 HMC329A?
For technical support, including HMC329A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC329A requirements.
6.How does Aetrix verify that HMC329A is sourced from the original manufacturer or authorized distributors?
All HMC329A 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 HMC329A meets industry standards.
7.What is the process for return or replacement of HMC329A?
All HMC329A units undergo pre-shipment inspection (PSI). If there is an issue with HMC329A, 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 HMC329A part is unused and in its original packaging.
Return procedure for HMC329A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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