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Analog Devices Inc. HMC329LM3
- Part No.:
- HMC329LM3
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 6-SMD, No Lead
- Datasheet:
-
HMC329LM3.pdf
- Description:
- IC MMIC IQ MIXER 26-40GHZ 6SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,162
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Product details
Overview
HMC329LM3 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC double-balanced passive mixer operating from 26 to 40 GHz RF/LO and DC–8 GHz IF, with 10 dB typical conversion loss, +19 dBm input IP3, and 35 dB LO/RF isolation - deployed in point-to-point radios, SATCOM transceivers, and radar front-ends.
For engineers reviewing the HMC329LM3 datasheet, HMC329LM3 pinout, HMC329LM3 application, or HMC329LM3 equivalent, this page delivers verified RF mixer specifications, terminal-level interface guidance, thermal and ESD ratings, and real-world up/downconversion performance data at millimeter-wave frequencies.
Technical Context
The HMC329LM3 employs on-chip baluns to achieve high LO/RF and LO/IF isolation without external components or DC bias. Its passive architecture enables operation as both upconverter and downconverter across full 26–40 GHz bandwidth.
Designed for 50 Ω systems, it features DC-coupled RF and LO ports matched from 25–40 GHz, and a DC-coupled IF port supporting ±2 mA current - requiring external DC blocking only when DC operation is unnecessary.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range (RF/LO) | 26–40 GHz - supports full Ka-band operation in SATCOM and radar systems |
| Frequency Range (IF) | DC–8 GHz - enables baseband through low-IF architectures without external filtering |
| Conversion Loss | Typ. 10 dB @ LO = +13 dBm, IF = 1 GHz - defines signal path attenuation in receiver/transmitter chains |
| Input IP3 | +19 dBm @ LO = +13 dBm - determines third-order intermodulation handling in dense RF environments |
| LO/RF Isolation | Typ. 35 dB - minimizes LO leakage into antenna paths, reducing spurious emissions |
| Noise Figure (SSB) | Typ. 9 dB - sets minimum detectable signal level in receiver front-ends |
| Operating Temperature | −40°C to +85°C - qualifies for outdoor wireless infrastructure and airborne radar deployments |
Pinout & Package
Package: Leadless SMT chip carrier (LM3), 25 mm², non-hermetic epoxy-sealed, gold-over-nickel plating, requires full soldering of package base to PCB RF ground per Note #5 in outline drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | No Connect | May be tied to PCB ground or left floating; no internal connection |
| 4 | RF Port | DC-coupled, 50 Ω matched input/output for 25–40 GHz signals |
| 5 | IF Port | DC-coupled interface; must not source/sink >±2 mA to avoid damage or malfunction |
| 6 | LO Port | DC-coupled, 50 Ω matched local oscillator input from 25–40 GHz |
| GND (package base) | RF Ground Reference | Must be fully soldered to PCB RF ground plane for impedance control and isolation integrity |
Key Features
| Feature | Design Value |
|---|---|
| No DC bias required | Eliminates bias network design, reduces BOM count, and improves reliability in high-frequency modules |
| On-chip baluns | Deliver >30 dB LO/RF isolation without external transformers or hybrid couplers |
| Leadless LM3 package | Enables repeatable, wire-bond-free assembly with consistent RF interface and thermal performance |
| Passive double-balanced topology | Suppresses even-order harmonics and LO feedthrough, simplifying post-mixer filtering |
| ESD rating Class 1B (HBM) | Requires standard ESD handling but supports automated SMT placement with proper protocols |
Applications
| Point-to-Point Radios | SATCOM Terminals |
|---|---|
Use Scenario: High-capacity backhaul links operating in 28 GHz and 39 GHz licensed bands. IC Role / Device Role / Timing Role: Downconverter in receiver chain and upconverter in transmitter chain for FDD/TDD transceivers. Use Value: 10 dB conversion loss and +19 dBm IP3 maintain link budget and spectral purity under multi-tone interference. |
Use Scenario: Mobile satellite terminals requiring compact, high-isolation mixing in Ka-band uplink/downlink paths. IC Role / Device Role / Timing Role: Passive mixer core enabling direct-conversion architectures without DC bias complexity. Use Value: 35 dB LO/RF isolation prevents transmit LO leakage from desensitizing sensitive receive paths. |
| Radar Transceivers | Millimeter-Wave Test Equipment |
Use Scenario: Automotive and defense radar front-ends operating at 34–36 GHz for object detection and imaging. IC Role / Device Role / Timing Role: IF-downconversion stage translating RF echoes to baseband for ADC sampling. Use Value: DC–8 GHz IF bandwidth supports wide instantaneous bandwidths needed for high-resolution pulse compression. |
Use Scenario: Signal generator and spectrum analyzer front-end modules requiring calibrated, repeatable mixing performance. IC Role / Device Role / Timing Role: Precision mixer element in calibrated test path with known conversion loss and isolation. Use Value: Stable 10 dB conversion loss and <±1 dB variation over temperature enable traceable measurement uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar passive double-balanced mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC774ALC3 | Wider RF/LO range (10–40 GHz), higher conversion loss (12 dB typ.), same LM3 package | Supports lower-frequency bands (e.g., X-band radar), less suitable for pure Ka-band optimization | Select when multi-band coverage outweighs Ka-band efficiency |
| QPC1006 | Higher frequency range (24–44 GHz), +21 dBm IP3, but requires external balun for balanced LO drive | Used in 5G FR2 base station designs where layout flexibility allows discrete balun integration | Select when maximum linearity is prioritized and board space permits external components |
Compared with HMC329LM3, HMC774ALC3 trades Ka-band efficiency for broader frequency coverage, while QPC1006 delivers higher IP3 at the cost of added external component count and layout complexity - making HMC329LM3 optimal for compact, self-contained Ka-band modules.
Availability
HMC329LM3 is available at Aetrix Electronics and suitable for point-to-point radios, SATCOM terminals, and radar transceivers requiring stable component supply across extended temperature ranges and high-frequency performance consistency.
Supply support for HMC329LM3 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. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for communications, industrial, and aerospace applications.
The HMC329LM3 belongs to Analog Devices' legacy Hittite MMIC mixer product line, engineered specifically for millimeter-wave wireless infrastructure and defense systems demanding passive, high-isolation, wire-bond-free integration.
FAQ
What is the recommended LO drive level for optimal performance of the HMC329LM3?
The HMC329LM3 achieves best conversion loss, IP3, and isolation at LO = +13 dBm. Performance degrades outside +11 to +15 dBm range: conversion loss increases >1 dB below +11 dBm, and compression begins above +15 dBm. The HMC329LM3 datasheet specifies all key metrics at +13 dBm, and the HMC329LM3 evaluation board is optimized for this drive level.
Does the HMC329LM3 require DC bias or external matching components?
No - the HMC329LM3 is a fully passive double-balanced mixer with no DC bias requirement and no need for external matching networks. Its on-chip baluns provide intrinsic 50 Ω matching at RF and LO ports from 25–40 GHz, and the IF port is DC-coupled. The HMC329LM3 operates reliably with only proper PCB grounding and controlled impedance traces.
What is the maximum allowable current at the IF port of the HMC329LM3?
The HMC329LM3 IF port must not source or sink more than ±2 mA DC current. Exceeding this limit risks non-function or permanent damage. For AC-coupled IF applications, a series capacitor should be used; for DC-coupled use, ensure external circuitry limits current to within ±2 mA. This specification is explicitly defined in the HMC329LM3 absolute maximum ratings table.
Can the HMC329LM3 be used as both an upconverter and downconverter?
Yes - the HMC329LM3 is bidirectional and functions identically as an upconverter (IF → RF) or downconverter (RF → IF) due to its symmetric passive architecture. All published specs - including conversion loss, isolation, and IP3 - apply to both modes, with measurements performed as a downconverter in the HMC329LM3 datasheet unless otherwise noted.
What is the ESD sensitivity classification for the HMC329LM3?
The HMC329LM3 is rated ESD Class 1B per Human Body Model (HBM), with a withstand voltage of 250–500 V. Handling requires standard ESD controls: grounded workstations, wrist straps, and conductive packaging. The HMC329LM3 LM3 package metallization and die layout are optimized for robustness, but uncontrolled ESD events can degrade RF performance or cause latent failure.
HMC329LM3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-SMD, No Lead
- Packaging:
- Strip
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 26GHz ~ 40GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 9dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SMT
HMC329LM3 FAQ
1.How can I place an order for HMC329LM3 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC329LM3 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 HMC329LM3 reliable?
The price and inventory of HMC329LM3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC329LM3 is usually 5 days.
3.What payment methods are accepted for HMC329LM3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC329LM3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC329LM3?
HMC329LM3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC329LM3 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 HMC329LM3?
For technical support, including HMC329LM3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC329LM3 requirements.
6.How does Aetrix verify that HMC329LM3 is sourced from the original manufacturer or authorized distributors?
All HMC329LM3 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 HMC329LM3 meets industry standards.
7.What is the process for return or replacement of HMC329LM3?
All HMC329LM3 units undergo pre-shipment inspection (PSI). If there is an issue with HMC329LM3, 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 HMC329LM3 part is unused and in its original packaging.
Return procedure for HMC329LM3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC329LM3 Tags
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ADE-1ASK+
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