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Analog Devices Inc. HMC351S8
- Part No.:
- HMC351S8
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HMC351S8.pdf
- Description:
- IC MIXER DBL-BAL HI IP3 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
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Product details
Overview
HMC351S8 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC double-balanced mixer optimized for high-linearity RF signal conversion in 0.7–1.2 GHz RF/LO and DC–0.3 GHz IF applications. It delivers 9 dB typical conversion loss, +25 dBm input IP3, and 42 dB LO-to-RF isolation at +19 dBm LO drive, enabling carrier-suppressed modulation in cellular basestations and fixed wireless access systems.
For engineers reviewing the HMC351S8 datasheet, HMC351S8 pinout, HMC351S8 application, or HMC351S8 equivalent, key selection criteria include its passive Schottky diode architecture, integrated on-chip planar baluns, MSL1 solderability, and guaranteed performance across –40°C to +85°C without external components.
Technical Context
The HMC351S8 implements a passive GaAs Schottky diode core with monolithic planar baluns for RF, LO, and IF ports-eliminating external transformers or matching networks. Its double-balanced topology inherently suppresses even-order harmonics and provides high LO/RF (42 dB typ) and LO/IF (35 dB typ) isolation.
Designed for +19 dBm LO drive, it achieves stable conversion loss (9–11.5 dB), noise figure (9–11.5 dB SSB), and linearity (IP3 = 22–25 dBm, IP2 = 40–48 dBm) across its full 0.7–1.2 GHz RF/LO band. Absolute maximum ratings include +27 dBm RF/IF input and +27 dBm LO drive, with thermal resistance of 65 °C/W junction-to-package bottom.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 0.7–1.2 GHz - supports full-band operation in UHF cellular and FWA front-ends |
| IF Frequency Range | DC–0.3 GHz - enables baseband and low-IF architectures without external filtering |
| Conversion Loss | 9.0 dB typ - defines minimum gain budget required in receiver/transmitter chains |
| Input IP3 | +25 dBm typ - ensures robust two-tone intermodulation suppression in dense signal environments |
| LO-to-RF Isolation | 42 dB typ - minimizes LO leakage into antenna paths, critical for modulator carrier suppression |
| Operating Temperature | –40°C to +85°C - validated for outdoor basestation and industrial wireless equipment |
| Package | 8-lead plastic SMT - RoHS-compliant variant HMC351S8E uses 100% matte Sn; standard HMC351S8 uses Sn/Pb |
Pinout & Package
Package: 8-lead surface-mount plastic package (MSL1), low-stress injection molded, with copper alloy leadframe. All ground leads must be soldered directly to PCB RF ground plane per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | RF Port Ground / Balun Tap | Four contiguous ground pins tied internally to RF balun center-tap; require direct connection to RF ground plane |
| 5 | RF Input | Differential RF port (balanced); connects to antenna or PA output via 50 Ω microstrip |
| 6 | LO Input | Differential LO port (balanced); accepts +19 dBm drive without external matching |
| 7 | IF Output | Single-ended IF output; DC-coupled, supports baseband or low-IF sampling |
| 8 | Ground | Primary IF-side ground reference; must be low-inductance connection to system ground |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Monolithic planar baluns integrated on GaAs die eliminate discrete transformers and matching networks |
| High LO suppression | 42 dB LO-to-RF isolation enables >50 dB carrier suppression in I/Q modulators |
| Wide IF bandwidth | DC–300 MHz IF range supports zero-IF receivers and complex modulation schemes |
| Robust overdrive tolerance | +27 dBm absolute max RF/IF and LO input power prevents damage during transient events |
| ESD-hardened design | HBM Class 1A rating (≥250 V) ensures reliability during board assembly and handling |
Applications
| Cellular Basestations | Cable Modems |
|---|---|
Use Scenario: Downconversion of 800–960 MHz LTE signals to baseband in macrocell transceivers. IC Role / Device Role / Timing Role: Double-balanced mixer performing RF-to-IF translation with minimal image and LO feedthrough. Use Value: 42 dB LO-to-RF isolation reduces need for additional filtering; 9 dB conversion loss simplifies LNA/gain staging. |
Use Scenario: Upconversion of DOCSIS 3.1 upstream channels (5–85 MHz) to 108–1218 MHz RF band. IC Role / Device Role / Timing Role: Passive mixer acting as broadband modulator with high IP3 to handle multi-carrier OFDMA signals. Use Value: +25 dBm IIP3 maintains EVM integrity under high composite power; DC–300 MHz IF supports wideband digital IF processing. |
| Fixed Wireless Access Systems | Point-to-Point Microwave Radios |
Use Scenario: Full-duplex transceiver in 900 MHz or 1.2 GHz licensed FWA links with tight adjacent-channel rejection. IC Role / Device Role / Timing Role: High-isolation mixer used in both transmit and receive paths for frequency translation. Use Value: 35 dB LO-to-IF isolation prevents LO leakage from corrupting sensitive receive IF amplifiers. |
Use Scenario: Intermediate frequency stage in 1.2 GHz backhaul radios requiring low phase noise and spurious-free mixing. IC Role / Device Role / Timing Role: Passive double-balanced mixer providing clean spectral translation with minimal harmonic generation. Use Value: Measured spurs ≤ –69 dBc at 1.2 GHz RF ensure compliance with FCC spectral mask requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar double-balanced mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LP4E | Wider RF/LO range (0.3–3.0 GHz), higher conversion loss (10.5 dB typ), same 8-lead SMT package | Supports multiband basestation designs beyond 1.2 GHz; less optimal for narrowband 900 MHz FWA due to higher loss | Select when broader frequency coverage outweighs 1.5 dB conversion loss penalty |
| ADL5802ACPZ-R7 | Active mixer with 5.5 dB conversion gain, 2.3–2.8 GHz RF range, requires external bias and matching | Enables gain instead of loss in receiver chains but adds complexity and power consumption | Prefer for battery-powered or gain-constrained IF stages where active architecture justifies added design overhead |
Compared with HMC1048LP4E and ADL5802ACPZ-R7, the HMC351S8 offers the lowest conversion loss and highest LO-to-RF isolation within its 0.7–1.2 GHz niche, making it optimal for cost-sensitive, high-volume FWA and cable infrastructure where passive simplicity and carrier suppression are prioritized over wideband flexibility or gain.
Availability
HMC351S8 is available at Aetrix Electronics and suitable for cellular basestations, cable modems, and fixed wireless access systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for HMC351S8 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 integrates its high-frequency RF portfolio into precision analog and RF solutions for communications, defense, and instrumentation markets.
The HMC351S8 belongs to Analog Devices' legacy Hittite GaAs MMIC mixer family, engineered specifically for high-linearity, low-cost, high-volume wireless infrastructure applications demanding minimal external circuitry.
FAQ
What is the recommended LO drive level for optimal performance of the HMC351S8?
The HMC351S8 is characterized and optimized for +19 dBm LO drive, delivering 9 dB typical conversion loss and +25 dBm input IP3 at this level. Operating below +17 dBm increases conversion loss and degrades IP3; exceeding +21 dBm yields diminishing returns and risks compression. The datasheet specifies absolute maximum LO input as +27 dBm, but sustained operation above +22 dBm is not recommended for reliability.
Does the HMC351S8 require external baluns or matching components?
No. The HMC351S8 integrates planar on-chip baluns for RF, LO, and IF ports, enabling direct 50 Ω interface without external transformers or matching networks. Its passive GaAs Schottky diode architecture eliminates bias circuitry. Layout best practices-such as grounding all ground pins to a solid RF ground plane and using controlled-impedance traces-are sufficient for full-spec operation.
What is the difference between HMC351S8 and HMC351S8E?
The HMC351S8 uses Sn/Pb solder finish and has a maximum reflow temperature of 235 °C; the HMC351S8E is RoHS-compliant with 100% matte tin finish and supports peak reflow up to 260 °C. Both share identical electrical specifications, pinout, and package dimensions. The "E" suffix denotes environmental compliance-not performance differentiation-and both are MSL1 rated.
Can the HMC351S8 be used for both upconversion and downconversion?
Yes. The HMC351S8 is bidirectional: it functions as a downconverter (RF→IF) or upconverter (IF→RF) depending on signal routing. In upconversion mode, the IF port becomes the input and the RF port the output. Performance metrics-including conversion loss, IP3, and isolation-are specified for both configurations, with measured data confirming consistent linearity and suppression across modes.
What is the thermal resistance and maximum junction temperature of the HMC351S8?
The HMC351S8 has a thermal resistance (RTH) of 65 °C/W from junction to package bottom. With an operating ambient range of –40°C to +85°C and maximum continuous RF/LO input of +27 dBm, proper PCB thermal design-such as multiple thermal vias under the package and copper pour on inner layers-is essential to maintain junction temperature below 150°C under worst-case conditions.
HMC351S8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Strip
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 700MHz ~ 1.2GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 9dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
HMC351S8 FAQ
1.How can I place an order for HMC351S8 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC351S8 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 HMC351S8 reliable?
The price and inventory of HMC351S8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC351S8 is usually 5 days.
3.What payment methods are accepted for HMC351S8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC351S8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC351S8?
HMC351S8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC351S8 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 HMC351S8?
For technical support, including HMC351S8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC351S8 requirements.
6.How does Aetrix verify that HMC351S8 is sourced from the original manufacturer or authorized distributors?
All HMC351S8 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 HMC351S8 meets industry standards.
7.What is the process for return or replacement of HMC351S8?
All HMC351S8 units undergo pre-shipment inspection (PSI). If there is an issue with HMC351S8, 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 HMC351S8 part is unused and in its original packaging.
Return procedure for HMC351S8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC351S8 Tags
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MAX2671EUT+T
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ADEX-10+
Mini-Circuits
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ADE-2+
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ADE-1+
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LT5560EDD#PBF
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LT5560EDD#TRPBF
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LTC5562IUC#TRPBF
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MAX2681EUT+T
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ADE-1ASK+
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ADE-1L+
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ADL5350ACPZ-R7
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AD608ARZ-RL
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