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Analog Devices Inc. HMC218AMS8E
- Part No.:
- HMC218AMS8E
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
HMC218AMS8E.pdf
- Description:
- IC MIXER DBL-BAL MMIC 8-MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,096
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Product details
Overview
HMC218AMS8E from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC double-balanced mixer in an 8-lead MSOP package, operating from 4.5–6.0 GHz RF/LO and DC–1.6 GHz IF, with 6.5 dB typical conversion loss, +18 dBm input IP3 at 5.2 GHz, and 30 dB LO/RF isolation - deployed in WiMAX base stations and portable wireless transceivers.
For engineers reviewing the HMC218AMS8E datasheet, HMC218AMS8E pinout, HMC218AMS8E application, or HMC218AMS8E equivalent, key selection criteria include RF/IF bandwidth coverage, LO drive sensitivity (+7 to +13 dBm), thermal stability across –40°C to +85°C, and compatibility with 50 Ω RF layout practices on Rogers 4350 substrates.
Technical Context
This passive MMIC mixer uses GaAs Schottky diodes and integrated planar transformer baluns to achieve broadband double-balanced operation without bias circuitry. Its topology inherently suppresses even-order harmonics and LO leakage, enabling clean upconversion and downconversion in FDD/TDD systems.
Performance is specified across three LO drive levels (+7, +10, +13 dBm), with conversion loss, noise figure, and isolation varying predictably within the 4.5–6.0 GHz band. Spurious output data (e.g., nLO+mRF products) confirms suppression >50 dBc for critical mixing products at 5.25 GHz LO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 4.5–6.0 GHz - supports full WiMAX 4.9–5.9 GHz and fixed wireless 5.15–5.85 GHz bands without retuning. |
| IF Bandwidth | DC–1.6 GHz - enables baseband I/Q demodulation and wideband IF sampling up to 1.6 GHz. |
| Conversion Loss | 6.5 dB typ. @ LO = +13 dBm - defines minimum required LO power and sets system NF floor in receiver chains. |
| Input IP3 | +18 dBm @ 5.2 GHz - determines two-tone linearity headroom before third-order intermodulation degrades adjacent-channel performance. |
| LO–RF Isolation | 30 dB min. - reduces LO radiation into antenna path, easing front-end filter requirements in transmitters. |
| Operating Temp | –40°C to +85°C - validated for outdoor small cells and vehicular telematics enclosures without derating. |
Pinout & Package
Package: 8-lead MSOP (Moisture Sensitivity Level 1, RoHS-compliant low-stress plastic, matte Sn finish, 260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | Single-ended 50 Ω RF port; requires external matching network for optimal VSWR across 4.5–6.0 GHz. |
| 2 | Ground | Must be soldered directly to PCB RF ground plane per package note; critical for balun common-mode rejection. |
| 3 | LO Input | Single-ended 50 Ω LO port; accepts +7 to +13 dBm drive; higher drive improves IP3 but increases current draw in active stages. |
| 4 | Ground | Second dedicated ground lead; connects to same RF ground plane as Pin 2 to minimize loop inductance. |
| 5 | IF Output | Differential IF output; requires external 180° hybrid or balun to convert to single-ended for ADC interface. |
| 6 | Ground | Third ground lead; ensures low-impedance return path for IF common-mode currents. |
| 7 | Ground | Fourth ground lead; completes symmetric grounding for transformer-coupled internal baluns. |
| 8 | RF Ground / Case | Exposed paddle; must be soldered to solid thermal/RF ground plane for thermal dissipation and isolation integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Passive double-balanced topology | Eliminates DC biasing and enables true LO/RF/IF port isolation without active components or external baluns. |
| GaAs Schottky diode + planar transformer integration | Delivers stable conversion loss and IP3 across temperature without discrete balun tuning or alignment. |
| Ultra-miniature MSOP-8 package | Reduces PCB area by >40% vs. comparable SMT mixers; compatible with standard 0.65 mm pitch pick-and-place equipment. |
| DC–1.6 GHz IF bandwidth | Supports direct-conversion receivers and wideband IF digitization without image-reject filtering overhead. |
Applications
| WiMAX Base Stations | Public Safety PLMR Radios |
|---|---|
Use Scenario: 5.15–5.85 GHz TDD base station transceiver performing upconversion of 20 MHz OFDMA signals. IC Role / Device Role / Timing Role: Double-balanced mixer providing LO-to-RF isolation >30 dB to prevent transmit leakage from desensitizing receive path. Use Value: Enables co-location of Tx/Rx antennas with minimal duplex filtering; 6.5 dB conversion loss preserves PA efficiency budget. | Use Scenario: Portable land-mobile radio operating in 4.94–4.99 GHz public safety band with battery-constrained power envelope. IC Role / Device Role / Timing Role: Downconverter mixer translating received 4.94–4.99 GHz signals to 70 MHz IF for analog demodulation. Use Value: +18 dBm IP3 maintains adjacent-channel selectivity under strong interferer conditions; no DC bias simplifies power management. |
| Fixed Wireless Access Points | Telematics Subscribers |
Use Scenario: Outdoor 5.47–5.725 GHz point-to-multipoint access point serving multiple CPE units with high spectral efficiency. IC Role / Device Role / Timing Role: Upconverter mixer generating 5.47–5.725 GHz carrier from 100 MHz IF with low phase noise contribution. Use Value: 25 dB LO–IF isolation prevents LO feedthrough into sensitive IF amplifiers; DC–1.6 GHz IF supports burst-mode modulation. | Use Scenario: In-vehicle telematics unit receiving GPS-augmented 5.25 GHz downlink for real-time traffic updates. IC Role / Device Role / Timing Role: Downconverter mixer translating 5.25 GHz signal to DC–100 MHz IF for low-power SAR ADC sampling. Use Value: –40°C to +85°C operation ensures reliability in uncontrolled vehicle cabin environments; MSOP-8 footprint eases routing in space-limited modules. |
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/LO range (3.5–7.0 GHz), higher conversion loss (7.5 dB typ.), larger 16-pin QFN package. | Better suited for multi-band military radios requiring 3.5–7.0 GHz coverage; less compact than HMC218AMS8E. | Select HMC1048LP3E when broader frequency agility outweighs size and loss constraints. |
| QPC1006 | Same 4.5–6.0 GHz range, lower IP3 (+15 dBm), 8-lead DFN package with different pinout and thermal pad layout. | Optimized for cost-sensitive consumer infrastructure; lacks HMC218AMS8E's LO/RF isolation margin (28 dB vs. 30 dB). | Choose QPC1006 only after verifying PCB redesign accommodates non-pin-compatible DFN footprint and reduced isolation. |
Compared with HMC1048LP3E and QPC1006, the HMC218AMS8E delivers best-in-class conversion loss and isolation within its 4.5–6.0 GHz window, making it optimal for size- and linearity-critical WiMAX and portable wireless designs where MSOP-8 layout compatibility is required.
Availability
HMC218AMS8E is available at Aetrix Electronics and suitable for WiMAX base stations, public safety PLMR radios, and fixed wireless access points requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for HMC218AMS8E 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, integrating its high-frequency RF IC portfolio into ADI's broader communications and defense solutions.
The HMC218AMS8E belongs to Hittite's legacy GaAs MMIC mixer product line, engineered specifically for compact, high-isolation, bias-free RF front-ends in licensed wireless infrastructure and mobile terminals.
FAQ
What LO drive level is required for optimal performance of the HMC218AMS8E?
The HMC218AMS8E achieves its best conversion loss (6.5 dB typ.) and IP3 (+18 dBm) at +13 dBm LO drive. It remains functional down to +7 dBm, though conversion loss rises to 9.5 dB and IP3 drops to +13 dBm. System designers should verify LO source capability matches the target drive level across temperature and frequency.
Does the HMC218AMS8E require DC biasing or external baluns?
No, the HMC218AMS8E is a fully passive double-balanced mixer using integrated GaAs Schottky diodes and planar transformer baluns. It operates without any DC bias voltage or current and does not require external baluns - all port matching and balance are implemented monolithically on the GaAs die.
What is the recommended PCB layout practice for the HMC218AMS8E ground connections?
All four ground pins (2, 4, 6, 7) and the exposed paddle (Pin 8) must be soldered directly to a solid, low-inductance RF ground plane. The evaluation board (P/N 101828) uses Rogers 4350 substrate with 50 Ω microstrip lines and ≥8 via holes per ground pad to ensure consistent grounding and thermal conduction across –40°C to +85°C operation.
Can the HMC218AMS8E be used for both upconversion and downconversion?
Yes, the HMC218AMS8E is bidirectional: RF and LO ports are interchangeable per the functional diagram. When used as an upconverter, IF is applied to Pin 5 and RF appears at Pin 1; as a downconverter, RF enters Pin 1 and IF exits Pin 5. LO always drives Pin 3, regardless of mode.
What is the maximum RF input power the HMC218AMS8E can handle continuously?
The absolute maximum RF input power for the HMC218AMS8E is +13 dBm. Exceeding this risks permanent degradation of the GaAs Schottky diodes. For reliable operation, design to stay ≤ +10 dBm RF input under worst-case temperature and aging conditions, especially when operating near P1dB (≈ +7 dBm input compression point).
HMC218AMS8E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Type:
- WiMAX / WiBro
- Frequency:
- 4.5GHz ~ 6GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 6.5dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
HMC218AMS8E FAQ
1.How can I place an order for HMC218AMS8E through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC218AMS8E 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 HMC218AMS8E reliable?
The price and inventory of HMC218AMS8E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC218AMS8E is usually 5 days.
3.What payment methods are accepted for HMC218AMS8E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC218AMS8E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC218AMS8E?
HMC218AMS8E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC218AMS8E 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 HMC218AMS8E?
For technical support, including HMC218AMS8E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC218AMS8E requirements.
6.How does Aetrix verify that HMC218AMS8E is sourced from the original manufacturer or authorized distributors?
All HMC218AMS8E 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 HMC218AMS8E meets industry standards.
7.What is the process for return or replacement of HMC218AMS8E?
All HMC218AMS8E units undergo pre-shipment inspection (PSI). If there is an issue with HMC218AMS8E, 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 HMC218AMS8E part is unused and in its original packaging.
Return procedure for HMC218AMS8E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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