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Analog Devices Inc. HMC128G8TR
- Part No.:
- HMC128G8TR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 8-SOIC (0.173", 4.40mm Width)
- Datasheet:
-
HMC128G8TR.pdf
- Description:
- IC MMIC MIXER DBL-BAL 8SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,833
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Product details
Overview
HMC128G8TR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC double-balanced passive mixer in an 8-lead ceramic SMT package, operating from 1.8–5 GHz RF/LO and DC–2 GHz IF, with 10 dB typical conversion loss, >30 dB LO-to-RF/IF isolation, and +18 dBm input IP3-used in wireless base station up/downconversion stages.
For engineers reviewing the HMC128G8TR datasheet, HMC128G8TR pinout, HMC128G8TR application, or HMC128G8TR equivalent, key selection criteria include RF/LO frequency coverage, passive diode/balun architecture, hermetic Alumina-loaded glass packaging, +15 dBm recommended LO drive, and compatibility with 50 Ω RF system interfaces.
Technical Context
The HMC128G8TR implements a passive diode-based double-balanced topology with integrated planar baluns on GaAs MMIC substrate, enabling high port-to-port isolation without external transformers. Its RF and LO ports are symmetrically matched for bidirectional operation as upconverter or downconverter.
Designed for fixed LO drive at +15 dBm, the device delivers stable conversion loss and noise figure (equal to conversion loss) across 1.8–5 GHz, with minimal sensitivity to LO power variation between +10 and +15 dBm per characterization data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 1.8–5.0 GHz: Supports full-band cellular, WiMAX, and WLAN infrastructure front-end signal translation. |
| IF Frequency Range | DC–2 GHz: Enables baseband and low-IF architectures including zero-IF receivers and direct-conversion transmitters. |
| Conversion Loss | 10 dB typ.: Defines signal attenuation through mixer; directly equals single-sideband noise figure in passive mixers. |
| LO-to-RF Isolation | 28–40 dB: Reduces LO leakage into antenna path, easing filtering requirements in transmit chains. |
| Input IP3 | +13 to +18 dBm: Indicates high linearity for handling strong interferers in dense RF environments like base stations. |
| 1 dB Compression Point | +5 to +10 dBm input: Specifies maximum usable RF input level before gain compression degrades dynamic range. |
| Operating Temperature | −55°C to +125°C: Qualified for outdoor and industrial RF equipment deployment without derating. |
Pinout & Package
Package: 8-lead ceramic surface-mount (SMT), hermetically sealed with alumina-loaded borosilicate glass body, Kovar™ leads and cover, electrolytic gold plating (≥50 µin), exposed ground paddle requiring solder connection to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | RF Port Terminals | Differential RF input/output pair; requires 50 Ω balanced interface or external balun for single-ended use. |
| 5, 6, 7, 8 | LO Port Terminals | Differential LO input; symmetrical design supports either polarity LO drive; matched to 50 Ω differential impedance. |
| Ground Paddle | Common RF Ground Reference | Thermal and RF return path; must be soldered to solid PCB ground plane with multiple vias for optimal isolation and thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Passive Diode/Balun Architecture | Eliminates DC bias and active-device noise; enables wide temperature stability and no power supply requirement. |
| Hermetic Ceramic SMT Package | Ensures long-term reliability in humid, high-vibration, or thermally cycling RF environments. |
| High LO-to-RF/IF Isolation | Reduces need for external LO suppression filters, simplifying front-end BOM and board layout. |
| DC–2 GHz IF Bandwidth | Supports both complex I/Q and real IF outputs, enabling flexible receiver/transmitter architecture choices. |
Applications
| Wireless Base Station Transceiver | MMDS Subscriber Unit |
|---|---|
Use Scenario: Downconverting 3.5 GHz LTE FDD signals to 100 MHz IF in macrocell remote radio head. IC Role / Device Role / Timing Role: Passive double-balanced mixer performing RF-to-IF translation with minimal added noise and distortion. Use Value: 10 dB conversion loss and +18 dBm IP3 maintain EVM and ACLR performance under multi-carrier loading. | Use Scenario: Upconverting 70 MHz IF to 2.5 GHz MMDS band in fixed wireless access CPE. IC Role / Device Role / Timing Role: Bidirectional mixer used in transmit path with +15 dBm LO drive and 50 Ω matched ports. Use Value: >30 dB LO-to-RF isolation prevents LO radiation through antenna, meeting FCC spectral mask limits. |
| Wi-Fi 5 (802.11ac) AP Front-End | Wireless Local Loop Base Unit |
Use Scenario: IF sampling receiver using zero-IF architecture with 2.4/5 GHz RF bands and DC-coupled baseband output. IC Role / Device Role / Timing Role: Double-balanced mixer providing I/Q signal paths with inherent LO feedthrough rejection. Use Value: DC–2 GHz IF bandwidth allows direct connection to high-speed ADCs without IF amplification. | Use Scenario: Outdoor point-to-multipoint base station operating in 3.3–3.8 GHz licensed band with −40°C to +70°C ambient range. IC Role / Device Role / Timing Role: High-reliability passive mixer deployed in uncooled RF module with hermetic sealing. Use Value: −55°C to +125°C operating rating ensures functionality across extended environmental conditions without thermal compensation. |
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 |
|---|---|---|---|
| HMC1113LP5E | Wider RF/LO range (2–18 GHz), higher conversion loss (9.5 dB typ.), same 8-lead SMT package. | Better suited for Ka-band test equipment; less optimal for sub-6 GHz infrastructure due to higher loss. | Select HMC1113LP5E only when extending beyond 5 GHz operation is required. |
| ADL5801ACPZ-R7 | Active mixer with 5.8 dB conversion gain, +26 dBm IIP3, requires +5 V bias; 24-lead LFCSP package. | Enables gain instead of loss but adds power consumption, noise, and complexity; not drop-in compatible. | Choose ADL5801ACPZ-R7 when system-level gain budget is constrained and DC power is available. |
Compared with HMC1113LP5E and ADL5801ACPZ-R7, the HMC128G8TR offers optimal balance of bandwidth, linearity, and simplicity for 1.8–5 GHz infrastructure mixers-requiring no bias, delivering predictable loss, and fitting standard 8-lead SMT footprints.
Availability
HMC128G8TR is available at Aetrix Electronics and suitable for wireless base station, MMDS, and Wi-Fi 5/6 infrastructure applications requiring stable component supply, hermetic reliability, and proven RF performance across temperature extremes.
Supply support for HMC128G8TR 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 portfolio, specializing in microwave and millimeter-wave ICs for communications, defense, and instrumentation.
The HMC128G8TR belongs to Hittite's legacy GaAs MMIC mixer family, engineered specifically for high-isolation, high-linearity passive mixing in broadband wireless infrastructure equipment.
FAQ
What is the recommended LO drive level for optimal performance of the HMC128G8TR?
The HMC128G8TR is characterized and optimized for +15 dBm LO drive, delivering 10 dB typical conversion loss and +18 dBm input IP3. Performance remains stable from +10 to +15 dBm; exceeding +15 dBm risks degradation, and operation below +10 dBm increases conversion loss. The HMC128G8TR datasheet specifies +15 dBm as nominal LO drive condition.
Does the HMC128G8TR require DC bias or external power supply?
No, the HMC128G8TR is a passive diode-based double-balanced mixer and requires no DC bias or external power supply. It operates solely on RF and LO signal energy. All functional specifications-including conversion loss, isolation, and IP3-are specified under passive operation. The HMC128G8TR eliminates power supply design complexity and associated noise sources.
What is the function of the exposed ground paddle on the HMC128G8TR package?
The exposed ground paddle on the HMC128G8TR serves as the primary RF and thermal ground reference. It must be soldered to the PCB's solid ground plane using multiple thermal vias to ensure optimal LO/RF isolation, return loss, and thermal dissipation. Per datasheet note, all ground leads and the paddle require grounding; omitting this compromises HMC128G8TR isolation and conversion loss performance.
Can the HMC128G8TR be used for both upconversion and downconversion?
Yes, the HMC128G8TR is bidirectional and functions identically as an upconverter or downconverter due to its symmetric double-balanced architecture. RF and LO ports are interchangeable in application circuits, and IF bandwidth (DC–2 GHz) supports both baseband and low-IF configurations. This dual-role capability is confirmed in the HMC128G8TR general description and functional diagram.
What package type and material construction does the HMC128G8TR use?
The HMC128G8TR uses an 8-lead hermetic ceramic SMT package with alumina-loaded borosilicate glass body, Kovar™ leads and cover, and ≥50 µin electrolytic gold plating over nickel. This construction provides moisture resistance, thermal stability, and RF shielding-critical for outdoor and high-reliability wireless infrastructure. The HMC128G8TR outline drawing confirms mechanical dimensions and grounding requirements.
HMC128G8TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- WLAN
- Frequency:
- 1.8GHz ~ 5GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 10dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SMT
HMC128G8TR FAQ
1.How can I place an order for HMC128G8TR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC128G8TR 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 HMC128G8TR reliable?
The price and inventory of HMC128G8TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC128G8TR is usually 5 days.
3.What payment methods are accepted for HMC128G8TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC128G8TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC128G8TR?
HMC128G8TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC128G8TR 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 HMC128G8TR?
For technical support, including HMC128G8TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC128G8TR requirements.
6.How does Aetrix verify that HMC128G8TR is sourced from the original manufacturer or authorized distributors?
All HMC128G8TR 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 HMC128G8TR meets industry standards.
7.What is the process for return or replacement of HMC128G8TR?
All HMC128G8TR units undergo pre-shipment inspection (PSI). If there is an issue with HMC128G8TR, 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 HMC128G8TR part is unused and in its original packaging.
Return procedure for HMC128G8TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC128G8TR Tags
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MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
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ADEX-10+
Mini-Circuits
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ADE-2+
Mini-Circuits
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ADE-1+
Mini-Circuits
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LT5560EDD#PBF
Analog Devices Inc.
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LT5560EDD#TRPBF
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LTC5562IUC#TRPBF
Analog Devices Inc.
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MAX2681EUT+T
Analog Devices Inc./Maxim Integrated
-
ADE-1ASK+
Mini-Circuits
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ADE-1L+
Mini-Circuits
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ADL5350ACPZ-R7
Analog Devices Inc.
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AD608ARZ-RL
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