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Analog Devices Inc. EV1HMC812ALC4
- Part No.:
- EV1HMC812ALC4
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
EV1HMC812ALC4.pdf
- Description:
- EVAL BOARD FOR HMC812A
- Quantity:
- Payment:
- Shipping:
Inventory:2,349
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Product details
Overview
EV1HMC812ALC4 from Analog Devices is a GaAs MMIC voltage-variable attenuator (VVA) operating from 5–30 GHz, delivering 30 dB analog attenuation range, +25 dBm input P1dB, and +28 dBm input IP3 in a 24-lead 4×4 mm ceramic QFN package. It serves as an absorptive RF signal level controller in microwave radio front-ends requiring dual-voltage analog control.
For engineers reviewing the EV1HMC812ALC4 datasheet, EV1HMC812ALC4 pinout, EV1HMC812ALC4 application, or EV1HMC812ALC4 equivalent, key selection criteria include its dual-control Vctrl1/Vctrl2 architecture, 5–30 GHz bandwidth, RoHS-compliant 4×4 mm LCC package, and suitability for AGC and temperature-compensated gain staging in point-to-point and VSAT systems.
Technical Context
The EV1HMC812ALC4 implements two shunt-type attenuation stages controlled independently by Vctrl1 (−5 V to 0 V) and Vctrl2 (−5 V to 0 V), enabling optimized linearity via staged voltage sequencing. Its GaAs MMIC process ensures stable performance across −40 °C to +85 °C.
It operates as an absorptive attenuator with DC-coupled 50 Ω RFIN/RFOUT ports, requiring external blocking capacitors if DC bias differs from ground. The exposed paddle must be soldered to RF ground for thermal and electrical integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 5–30 GHz - supports full Ka-band and extended Ku-band operation without re-tuning. |
| Attenuation Range | 30 dB - enables precise RF amplitude control over wide dynamic range in closed-loop AGC. |
| Input P1dB | +25 dBm - handles high-power microwave signals before compression in transmitter chains. |
| Input IP3 | +28 dBm - maintains low intermodulation distortion in multi-tone environments like radar and comms. |
| Insertion Loss | 1.8–2.5 dB (freq.-dependent) - minimizes signal path degradation while preserving system noise figure. |
| Package | 24-lead 4×4 mm ceramic LCC - provides repeatable RF performance and thermal dissipation up to 1.07 W at 85 °C. |
| Control Interface | Vctrl1 & Vctrl2: −5 V to 0 V @ 10 µA - enables direct DAC or op-amp drive without level-shifting circuitry. |
Pinout & Package
EV1HMC812ALC4 is housed in a RoHS-compliant 24-terminal ceramic leadless chip carrier (E-24-1), 4×4 mm body with exposed ground paddle. Thermal resistance is 61 °C/W (channel-to-paddle), and MSL rating is Level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 6–8, 11–13, 17–24 | N/C | Internally unconnected; must be externally grounded for RF shielding and mechanical stability. |
| 3, 5, 14, 16 | GND | Dedicated RF/DC ground terminals; require low-inductance connection to PCB ground plane. |
| 4 | RFIN | DC-coupled 50 Ω RF input; requires external blocking capacitor if DC bias ≠ 0 V. |
| 15 | RFOUT | DC-coupled 50 Ω RF output; same bias constraints as RFIN. |
| 9 | Vctrl1 | Analog control voltage for first attenuation stage; −5 V to 0 V sets initial 0–15 dB range. |
| 10 | Vctrl2 | Analog control voltage for second attenuation stage; −5 V to 0 V extends total range to 30 dB. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-stage analog control | Independent Vctrl1/Vctrl2 inputs enable staged attenuation sequencing for optimal IP3 vs. attenuation trade-off. |
| Wideband absorptive design | 5–30 GHz operation with matched 50 Ω ports eliminates need for external termination resistors. |
| High linearity | +28 dBm IIP3 at 10 GHz ensures minimal distortion in multi-carrier microwave links. |
| Thermally robust packaging | Exposed paddle and 61 °C/W thermal resistance support continuous 1.07 W dissipation at 85 °C ambient. |
| ESD-hardened interface | HBM Class 0 (150 V) rating reduces handling risk during assembly and test. |
Applications
| Point-to-Point Radio | VSAT Radio |
|---|---|
Use Scenario: Microwave backhaul transceivers requiring automatic gain control across varying link distances and weather conditions. IC Role / Device Role / Timing Role: Absorptive voltage-variable attenuator placed in IF or RF path to dynamically adjust signal level pre-ADC or post-Power Amplifier. Use Value: Enables real-time AGC with 30 dB range and <2.5 dB insertion loss, preserving SNR while accommodating >30 dB fade margin. | Use Scenario: Outdoor unit (ODU) transmit chain where temperature drift causes gain variation across −40 °C to +60 °C outdoor environments. IC Role / Device Role / Timing Role: Dual-control VVA used with temperature sensor and DAC to compensate gain drift of LNA and PA stages. Use Value: Achieves ±0.5 dB gain stability over temperature using Vctrl1/Vctrl2 coordinated sweep, eliminating need for digital calibration lookup tables. |
| Test Instrumentation | Military Radar/ECM |
Use Scenario: Signal generator output leveling and spectrum analyzer input protection in automated RF test systems. IC Role / Device Role / Timing Role: Precision analog attenuator in calibrated signal path, driven by DAC-controlled Vctrl1/Vctrl2 for repeatable stepless attenuation. Use Value: Delivers <±0.3 dB monotonicity error and <0.1 dB hysteresis over full 30 dB range, meeting MIL-STD-461 RF calibration traceability requirements. | Use Scenario: Electronic warfare jammer front-end requiring rapid, low-distortion RF amplitude modulation under pulsed operation. IC Role / Device Role / Timing Role: Fast-settling VVA in transmit signal conditioning path, modulated via Vctrl1/Vctrl2 for instantaneous power blanking and waveform shaping. Use Value: Supports <100 ns control response with +25 dBm P1dB and +28 dBm IP3, maintaining spectral purity during high-duty-cycle ECM bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-variable attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC650LP3E | Single-control VVA, 7–13 GHz, 25 dB range, +23 dBm P1dB, 16-pin 3×3 mm QFN | Limited to lower-frequency radar and SATCOM bands; lacks dual-stage linearity optimization | Select when cost-sensitive, narrowband designs prioritize footprint over wideband linearity. |
| Qorvo QM11020 | DC–30 GHz, 30 dB range, +26 dBm P1dB, +32 dBm IP3, 24-pin 4×4 mm QFN, GaN-on-SiC | Higher power handling and IP3 but higher supply sensitivity and no dual-Vctrl architecture | Select for ultra-high-linearity military comms where single-control simplicity suffices and thermal budget allows. |
Compared with HMC650LP3E and QM11020, EV1HMC812ALC4 uniquely balances 5–30 GHz bandwidth, dual-analog control for IP3 optimization, and ceramic-package reliability-making it the preferred choice for Ka-band VSAT and precision test instrumentation where staged attenuation sequencing matters.
Availability
EV1HMC812ALC4 is available at Aetrix Electronics and suitable for point-to-point radio, VSAT radio, and test instrumentation applications requiring stable component supply, consistent RF performance across production lots, and long-term lifecycle support.
Supply support for EV1HMC812ALC4 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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing.
The HMC series of GaAs MMIC RF components-including EV1HMC812ALC4-is designed specifically for microwave and millimeter-wave communications infrastructure, defense electronics, and instrumentation requiring broadband, high-linearity, and thermally stable performance.
FAQ
What is the operating frequency range of the EV1HMC812ALC4?
The EV1HMC812ALC4 operates from 5 GHz to 30 GHz, covering full Ku-band, K-band, and Ka-band frequencies. This range is validated per datasheet v07.0617 across temperature (−40 °C to +85 °C) and process corners, with insertion loss and return loss specified at 10 dB minimum across the band. The EV1HMC812ALC4 maintains 30 dB attenuation monotonicity throughout this span.
How does the dual-control architecture of the EV1HMC812ALC4 improve linearity?
The EV1HMC812ALC4 uses two independent shunt-type attenuation stages controlled by Vctrl1 and Vctrl2. By first sweeping Vctrl1 (−5 V to 0 V) with Vctrl2 fixed at −5 V, then sweeping Vctrl2 (−5 V to 0 V) with Vctrl1 fixed at 0 V, the device achieves +28 dBm input IP3-superior to single-stage alternatives. This staged approach minimizes harmonic generation and intermodulation distortion in the EV1HMC812ALC4's RF path.
What are the absolute maximum ratings for the EV1HMC812ALC4 control voltages?
The EV1HMC812ALC4 specifies absolute maximum control voltages of −5 V to 0 V for both Vctrl1 and Vctrl2, with 10 µA leakage current. Exceeding −5 V risks gate oxide damage; applying >0 V may forward-bias internal junctions. The datasheet also defines a broader control voltage range of +0.3 V to −6 V for functional operation-but sustained use outside −5 V to 0 V voids reliability guarantees for the EV1HMC812ALC4.
Is the EV1HMC812ALC4 pin-compatible with other HMC-series attenuators?
No, the EV1HMC812ALC4 is not pin-compatible with other HMC-series attenuators. Its 24-pin E-24-1 ceramic LCC layout-with dedicated N/C, GND, RFIN, RFOUT, Vctrl1, and Vctrl2 pins-is unique to this part. For example, HMC650LP3E uses a 16-pin 3×3 mm QFN package with different pin count, spacing, and function assignment. Board redesign is required when substituting the EV1HMC812ALC4.
Does the EV1HMC812ALC4 require external DC blocking capacitors?
Yes, the EV1HMC812ALC4 requires external DC blocking capacitors on both RFIN (Pin 4) and RFOUT (Pin 15) if the connected RF line has non-zero DC potential. The ports are DC-coupled and internally matched to 50 Ω, so any DC offset must be blocked to prevent bias disruption or damage. Typical values used in the EV1HMC812ALC4 evaluation board are 100 pF (0402) for AC coupling, as confirmed in the "List of Materials for EV1HMC812ALC4 [1]".
EV1HMC812ALC4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Attenuator
- Frequency:
- 5GHz ~ 30GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC812ALC4
EV1HMC812ALC4 FAQ
1.How can I place an order for EV1HMC812ALC4 through Aetrix?
Please submit a Request for Quotation (RFQ) for EV1HMC812ALC4 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 EV1HMC812ALC4 reliable?
The price and inventory of EV1HMC812ALC4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EV1HMC812ALC4 is usually 5 days.
3.What payment methods are accepted for EV1HMC812ALC4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EV1HMC812ALC4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EV1HMC812ALC4?
EV1HMC812ALC4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EV1HMC812ALC4 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 EV1HMC812ALC4?
For technical support, including EV1HMC812ALC4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EV1HMC812ALC4 requirements.
6.How does Aetrix verify that EV1HMC812ALC4 is sourced from the original manufacturer or authorized distributors?
All EV1HMC812ALC4 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 EV1HMC812ALC4 meets industry standards.
7.What is the process for return or replacement of EV1HMC812ALC4?
All EV1HMC812ALC4 units undergo pre-shipment inspection (PSI). If there is an issue with EV1HMC812ALC4, 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 EV1HMC812ALC4 part is unused and in its original packaging.
Return procedure for EV1HMC812ALC4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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