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Analog Devices Inc. 117596-HMC474SC70
- Part No.:
- 117596-HMC474SC70
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
117596-HMC474SC70.pdf
- Description:
- BOARD EVAL HMC474SC70E
- Quantity:
- Payment:
- Shipping:
Inventory:4,850
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Product details
Overview
HMC474SC70 from Analog Devices is a SiGe HBT MMIC gain block amplifier operating from DC to 6 GHz, delivering 15 dB small-signal gain, +8 dBm P1dB output power, and +20 dBm OIP3 at 850 MHz with only 25 mA supply current from a +3 V to +10 V single supply. It serves as a cascadable 50 Ω RF/IF gain stage in wireless infrastructure front-ends.
For engineers reviewing the HMC474SC70 datasheet, HMC474SC70 pinout, HMC474SC70 application, or HMC474SC70 equivalent, key selection criteria include its Darlington topology for temperature-stable gain, SC70 package compatibility with high-frequency PCB layouts, broadband 50 Ω I/O matching, and low-noise performance (3.0 dB NF at DC–5 GHz).
Technical Context
The HMC474SC70 employs a SiGe HBT Darlington configuration to achieve stable gain over temperature (0.01–0.015 dB/°C) and reduced process sensitivity. Its DC-coupled RFIN and bias-fed RFOUT enable compact, broadband cascading without external bias tees.
It operates with fixed collector bias via external resistor (e.g., 110 Ω at +5 V), supports 50 Ω input/output impedance across DC–6 GHz, and maintains ≥15 dB return loss up to 5 GHz - enabling direct integration into multi-stage RF chains without matching networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 6 GHz - supports baseband through microwave bands including cellular, WiMAX, and WLAN. |
| Small-Signal Gain | 15 dB typical (DC–2 GHz) - enables single-stage amplification without intermediate buffering. |
| P1dB Output Power | +8 dBm typical (0.5–4 GHz) - sufficient to drive mixers or subsequent gain stages in low-power transceivers. |
| OIP3 | +20 dBm typical (DC–5 GHz, Pout = 0 dBm/tone) - ensures linearity for multi-carrier LTE/WiMAX signals. |
| Noise Figure | 3.0 dB typical (DC–5 GHz) - preserves SNR in receiver LNA driver or IF gain positions. |
| Supply Current | 25 mA at +5 V - enables low-power operation with minimal thermal load in dense RF modules. |
| Input/Output Impedance | 50 Ω - allows direct cascade with SMA connectors, microstrip lines, and other 50 Ω components without matching. |
Pinout & Package
Package: SC70 (6-pin, low-stress injection-molded plastic, Sn/Pb lead finish, MSL1). Dimensions per JEDEC MO-203-AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | GND | RF/DC ground terminals - must be soldered directly to PCB ground plane for optimal RF return path and thermal dissipation. |
| 3 | RFIN | DC-coupled RF input - requires external DC blocking capacitor; enables baseband-capable signal chain integration. |
| 6 | RFOUT | RF output and DC bias feed point - supplies collector voltage to internal transistor; requires external bias choke or inductor. |
Key Features
| Feature | Design Value |
|---|---|
| Darlington SiGe HBT topology | Delivers ±0.5 dB gain variation over –40°C to +85°C, reducing need for closed-loop gain control. |
| Cascadable 50 Ω I/O | Eliminates external matching networks across DC–6 GHz, shortening design cycle and board area. |
| Single-supply operation (+3 V to +10 V) | Supports flexible system-level power architecture - compatible with common LDO rails in RF modules. |
| Low noise figure (3.0 dB) | Maintains signal integrity in receiver front-end driver applications where SNR budget is constrained. |
| ESD robustness (HBM Class 1B) | Enables safe handling during manual assembly and rework without specialized ESD workstations. |
Applications
| Cellular Base Station Driver | WiMAX/WiFi Front-End |
|---|---|
Use Scenario: Amplifying IF or RF signals between upconverter and PA driver in macro/micro base station transceivers. IC Role / Device Role / Timing Role: Cascadable gain block providing stable 15 dB gain and +20 dBm OIP3 to meet ACLR requirements. Use Value: Enables linear multi-carrier amplification without digital predistortion overhead due to high OIP3 and temperature stability. | Use Scenario: Boosting transmit signal path in 2.4/5 GHz WLAN access points or WiMAX CPE units. IC Role / Device Role / Timing Role: Final IF gain stage before upconversion or direct RF driver in FDD/TDD architectures. Use Value: Delivers +8 dBm P1dB and 3.0 dB NF within tight power envelope (25 mA @ +5 V), extending range without compromising battery life in portable CPE. |
| CATV/DOCSIS Amplifier Stage | Test Equipment Signal Generator |
Use Scenario: Compensating insertion loss in coaxial distribution splitters or active node amplifiers. IC Role / Device Role / Timing Role: Broadband gain block covering 50 MHz–1.2 GHz CATV spectrum with flat gain response. Use Value: Maintains group delay flatness and return loss >15 dB across band, minimizing distortion in multi-channel QAM systems. | Use Scenario: Output buffer in benchtop RF signal generators requiring clean, stable output up to 6 GHz. IC Role / Device Role / Timing Role: Final gain element driving attenuator and output connector; provides repeatable amplitude accuracy. Use Value: Offers <±0.3 dB gain variation over temperature and frequency, supporting calibrated output level stability in metrology-grade instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gain block applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC476SC70 | Higher gain (20 dB), lower P1dB (+5 dBm), same SC70 package and DC–6 GHz range. | Better suited for low-power receive paths where gain priority outweighs output drive. | Select HMC476SC70 when system gain budget is limited but output power demand is modest. |
| QPL9547 | 5 GHz max frequency, +18 dBm OIP3, 3.5 dB NF, 2.5 V supply, SOT-363 package. | Optimized for ultra-low-voltage 5G FR1 handsets; not suitable for 6 GHz or +10 V operation. | Choose QPL9547 only for space-constrained, battery-powered sub-6 GHz mobile designs with strict voltage limits. |
Compared with HMC474SC70, HMC476SC70 trades output power for higher gain in identical packaging, while QPL9547 offers lower voltage operation and improved linearity below 5 GHz but sacrifices upper-band coverage and supply flexibility.
Availability
HMC474SC70 is available at Aetrix Electronics and suitable for cellular infrastructure, WiMAX/WiFi front-ends, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HMC474SC70 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, and aerospace markets with precision signal processing solutions.
The HMC474SC70 belongs to the Hittite Microwave (acquired by Analog Devices) MMIC gain block product line, designed specifically for broadband, cascadable RF amplification in wireless infrastructure and instrumentation.
FAQ
What is the recommended bias resistor value for HMC474SC70 at +5 V supply?
The recommended bias resistor value for HMC474SC70 at +5 V supply is 110 Ω, calculated to deliver 25 mA collector current (ICQ) per the datasheet's Rbias = (Vs − Vcc) / ICQ formula. This value ensures stable operation at 25°C with minimal gain drift; HMC474SC70 maintains consistent performance across temperature when used with this resistor.
Does HMC474SC70 require external DC blocking capacitors?
Yes, HMC474SC70 requires external DC blocking capacitors on both RFIN (Pin 3) and RFOUT (Pin 6), as stated in the application circuit and pin descriptions. The device is DC-coupled at RFIN but relies on off-chip capacitors to isolate DC bias from preceding/following stages; omission risks damage or improper biasing of HMC474SC70.
What is the maximum operating temperature for HMC474SC70?
The maximum operating temperature for HMC474SC70 is +85°C, as specified in the Absolute Maximum Ratings table. The device maintains functional performance across –40°C to +85°C, with gain variation limited to 0.015 dB/°C in the DC–6 GHz band - a key specification validated for HMC474SC70 in production testing.
Is HMC474SC70 RoHS-compliant?
HMC474SC70 is not RoHS-compliant; it uses Sn/Pb lead finish and is rated MSL1 with a peak reflow temperature of 235°C. The RoHS-compliant variant is HMC474SC70E (100% matte Sn, 260°C reflow). Both share identical electrical specs, but HMC474SC70 must be processed using leaded solder profiles.
Can HMC474SC70 be used in DC-coupled baseband applications?
Yes, HMC474SC70 supports true DC-coupled operation at RFIN (Pin 3), enabling use in baseband and low-IF signal chains down to 0 Hz. Its DC–6 GHz bandwidth and internal biasing allow seamless integration into zero-IF receivers or direct-conversion transmitters - a verified capability of HMC474SC70 per its General Description and application schematics.
117596-HMC474SC70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Amplifier
- Frequency:
- 0Hz ~ 6GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC474SC70
117596-HMC474SC70 FAQ
1.How can I place an order for 117596-HMC474SC70 through Aetrix?
Please submit a Request for Quotation (RFQ) for 117596-HMC474SC70 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 117596-HMC474SC70 reliable?
The price and inventory of 117596-HMC474SC70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 117596-HMC474SC70 is usually 5 days.
3.What payment methods are accepted for 117596-HMC474SC70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 117596-HMC474SC70 transactions.
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4.How is shipping managed for 117596-HMC474SC70?
117596-HMC474SC70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 117596-HMC474SC70 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 117596-HMC474SC70?
For technical support, including 117596-HMC474SC70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 117596-HMC474SC70 requirements.
6.How does Aetrix verify that 117596-HMC474SC70 is sourced from the original manufacturer or authorized distributors?
All 117596-HMC474SC70 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 117596-HMC474SC70 meets industry standards.
7.What is the process for return or replacement of 117596-HMC474SC70?
All 117596-HMC474SC70 units undergo pre-shipment inspection (PSI). If there is an issue with 117596-HMC474SC70, 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 117596-HMC474SC70 part is unused and in its original packaging.
Return procedure for 117596-HMC474SC70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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