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Analog Devices Inc. 112585-HMC376LP3
- Part No.:
- 112585-HMC376LP3
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
112585-HMC376LP3.pdf
- Description:
- EVAL BOARD HMC376LP3
- Quantity:
- Payment:
- Shipping:
Inventory:1,059
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Product details
Overview
112585-HMC376LP3 from Analog Devices (formerly Hittite Microwave) is a GaAs PHEMT MMIC low-noise amplifier optimized for 700–1000 MHz cellular infrastructure front-ends. It delivers 0.7 dB noise figure, 15 dB gain, and +36 dBm output IP3 at +5 V supply, with externally adjustable bias current via Rbias for linearity tuning in GSM/CDMA base station receivers.
For engineers reviewing the 112585-HMC376LP3 datasheet, 112585-HMC376LP3 pinout, 112585-HMC376LP3 application, or 112585-HMC376LP3 equivalent, this page provides verified package mapping, temperature-stable RF performance data, bias-current dependency curves, and validated alternative LNAs for UHF infrastructure designs requiring <1.0 dB NF and >35 dBm OIP3.
Technical Context
The 112585-HMC376LP3 integrates a single-stage GaAs PHEMT amplifier with on-die matching networks enabling 50 Ω input/output impedance across 700–1000 MHz. Its externally set drain current (73 mA typical at Rbias = 10 Ω) directly controls trade-offs between noise figure (0.7 dB min) and third-order intercept (+36 dBm).
Thermal design relies on the exposed paddle (84.5 °C/W channel-to-ground thermal resistance) soldered to PCB ground, supporting continuous operation from –40 °C to +85 °C. Absolute maximum Vdd is +8 V, but specified performance is at +5 V with choke-fed supply and AC-coupled RFOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Figure | 0.7 dB typical - enables high sensitivity in weak-signal cellular receiver front-ends |
| Gain | 15 dB typical at 900 MHz - sufficient for single-stage LNA architecture without cascading |
| OIP3 | +36 dBm typical - supports multi-carrier CDMA/W-CDMA signals with low intermodulation distortion |
| Frequency Range | 700–1000 MHz - covers GSM850, GSM900, UMTS Band I/II, and TD-SCDMA bands |
| Supply Voltage | +5 V DC - compatible with standard telecom power rails; max rating +8 V |
| Bias Current Control | Externally adjustable via Rbias - allows optimization of NF/IP3/gain balance per system requirement |
| Input/Output Match | 50 Ω matched - eliminates external matching components in narrowband 700–1000 MHz layouts |
Pinout & Package
112585-HMC376LP3 uses a 16-lead LP3 (Low-Profile Plastic) package with exposed ground paddle. Dimensions: 3.0 × 3.0 × 0.85 mm, MSL1, Sn/Pb lead finish. All ground pins and paddle must be soldered to RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 7, 9, 12–14, 16 | No Connection | Internally unused; may be grounded for mechanical stability without affecting RF performance |
| 2 | RF Input | 50 Ω matched input (via internal 47 nH inductor); requires external AC coupling |
| 3, 6, 10 | Ground | RF/DC ground connections; must be tied to top-layer ground plane and via'd to internal ground |
| 8 | Bias Resistor Terminal | Connects to external Rbias (e.g., 10 Ω) to set Idd; determines operating point for NF/IP3 trade-off |
| 11 | RF Output | AC-coupled 50 Ω output; optimized for 0.7–1.0 GHz; requires external DC blocking capacitor |
| 15 | Drain Supply | +5 V supply input; requires choke inductor and bypass capacitors per application circuit |
Key Features
| Feature | Design Value |
|---|---|
| Externally adjustable bias current | Enables real-time optimization of noise figure vs. linearity without redesigning PCB layout |
| Integrated 50 Ω input/output matching | Eliminates discrete matching networks, reducing bill-of-materials and layout complexity in 700–1000 MHz bands |
| Thermally enhanced LP3 package | Exposed paddle with 84.5 °C/W thermal resistance ensures stable operation up to +85 °C ambient |
| High reverse isolation (22 dB typical) | Minimizes LO leakage and oscillator pulling in superheterodyne receiver architectures |
| Wide operating temperature range | –40 °C to +85 °C specification supports outdoor base station and repeater deployments |
Applications
| GSM Base Station Receiver | CDMA Cellular Infrastructure |
|---|---|
Use Scenario: Front-end LNA in macrocell BTS transceivers receiving 824–894 MHz uplink signals. IC Role / Device Role / Timing Role: Low-noise amplification stage immediately after bandpass filter and before mixer. Use Value: 0.7 dB NF preserves SNR in weak-signal conditions; +36 dBm OIP3 handles adjacent-channel interference in dense urban deployments. | Use Scenario: Receive path amplification in CDMA2000 base stations operating in 824–849 MHz band. IC Role / Device Role / Timing Role: First active device in analog receive chain, providing gain and noise suppression prior to downconversion. Use Value: 15 dB gain reduces need for additional amplification stages; 50 Ω match simplifies integration with SAW filters and baluns. |
| UHF TV Band Reallocations | Private Land Mobile Radio (PLMR) |
Use Scenario: Signal conditioning in spectrum-sensing receivers repurposing 600–700 MHz TV white space. IC Role / Device Role / Timing Role: Wideband LNA covering multiple UHF sub-bands with consistent noise and gain performance. Use Value: 700–1000 MHz bandwidth and <1.0 dB NF enable reliable detection of low-power primary user signals. | Use Scenario: Portable and fixed-site PLMR base stations operating in 700–800 MHz public safety bands. IC Role / Device Role / Timing Role: High-linearity LNA in mission-critical communications equipment requiring robust intermodulation immunity. Use Value: +36 dBm OIP3 prevents desensitization from strong out-of-band signals common in congested radio environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC617LP3E | Lower 0.5 dB noise figure; narrower 700–900 MHz bandwidth; same LP3 package | Better suited for ultra-low-NF requirements where bandwidth can be sacrificed | Select when NF < 0.6 dB is mandatory and 900–1000 MHz coverage is not required |
| QPL9057 | 0.85 dB NF; 600–4200 MHz bandwidth; 3.3 V supply; different 6-pin DFN package | Wider frequency coverage but higher NF; incompatible pinout and bias scheme | Choose for multi-band systems needing single-LNA coverage beyond 1 GHz, accepting 0.15 dB NF penalty |
Compared with HMC617LP3E and QPL9057, the 112585-HMC376LP3 offers the optimal balance of sub-1-dB noise figure, +36 dBm linearity, and 700–1000 MHz bandwidth in a thermally robust LP3 package-making it the preferred choice for cost-sensitive, high-volume GSM/CDMA infrastructure LNA designs.
Availability
112585-HMC376LP3 is available at Aetrix Electronics and suitable for cellular infrastructure, base station repeaters, and private land mobile radio systems requiring stable component supply, extended temperature operation, and repeatable RF performance across production lots.
Supply support for 112585-HMC376LP3 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 RF/Microwave product portfolio, including high-performance MMIC amplifiers, mixers, and switches for wireless infrastructure and defense applications.
The HMC376LP3 belongs to Hittite's legacy GaAs PHEMT low-noise amplifier family, engineered specifically for high-reliability, high-linearity front-end receiver applications in licensed UHF spectrum.
FAQ
What is the recommended bias resistor value for 112585-HMC376LP3 to achieve 73 mA supply current?
The 112585-HMC376LP3 achieves 73 mA supply current with a 10 Ω external bias resistor (Rbias) connected between Pin 8 and ground. This value is confirmed in the "Recommended Bias Resistor Values" table and yields the specified 0.7 dB noise figure and +36 dBm OIP3. Deviating from 10 Ω alters the operating point, trading NF for linearity or vice versa.
Does 112585-HMC376LP3 require external matching components for 50 Ω operation?
No, the 112585-HMC376LP3 features integrated 50 Ω input and output matching networks optimized for 700–1000 MHz. Pin 2 (RFIN) includes an internal 47 nH inductor to ground, and Pin 11 (RFOUT) is AC-coupled and matched. External matching is unnecessary-only AC coupling capacitors and bias chokes are required per the application circuit.
What is the thermal resistance and maximum power dissipation for 112585-HMC376LP3?
The 112585-HMC376LP3 has a channel-to-ground thermal resistance of 84.5 °C/W. At TA = 85 °C, its continuous power dissipation is 0.769 W, derating by 11.83 mW/°C above that temperature. The exposed paddle must be soldered to a solid RF ground plane with multiple thermal vias to maintain junction temperature below 150 °C.
Can 112585-HMC376LP3 operate from a 3.3 V supply?
No, the 112585-HMC376LP3 is characterized and specified only at +5 V supply voltage. While the absolute maximum rating is +8 V, operation below +4.5 V is not guaranteed-gain drops significantly and noise figure degrades. The datasheet specifies performance exclusively at +5 V with Rbias = 10 Ω, and no 3.3 V characterization data is provided.
Is 112585-HMC376LP3 RoHS-compliant?
The 112585-HMC376LP3 variant is not RoHS-compliant; it uses Sn/Pb lead finish and low-stress injection-molded plastic. For RoHS compliance, specify HMC376LP3E, which features 100% matte tin plating and RoHS-compliant packaging-identical electrical performance but different MSL profile (260 °C peak reflow vs. 235 °C for LP3).
112585-HMC376LP3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Amplifier
- Frequency:
- 700MHz ~ 1GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC376LP3
112585-HMC376LP3 FAQ
1.How can I place an order for 112585-HMC376LP3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 112585-HMC376LP3 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 112585-HMC376LP3 reliable?
The price and inventory of 112585-HMC376LP3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 112585-HMC376LP3 is usually 5 days.
3.What payment methods are accepted for 112585-HMC376LP3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 112585-HMC376LP3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 112585-HMC376LP3?
112585-HMC376LP3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 112585-HMC376LP3 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 112585-HMC376LP3?
For technical support, including 112585-HMC376LP3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 112585-HMC376LP3 requirements.
6.How does Aetrix verify that 112585-HMC376LP3 is sourced from the original manufacturer or authorized distributors?
All 112585-HMC376LP3 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 112585-HMC376LP3 meets industry standards.
7.What is the process for return or replacement of 112585-HMC376LP3?
All 112585-HMC376LP3 units undergo pre-shipment inspection (PSI). If there is an issue with 112585-HMC376LP3, 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 112585-HMC376LP3 part is unused and in its original packaging.
Return procedure for 112585-HMC376LP3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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