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Analog Devices Inc. HMC712ALP3CETR
- Part No.:
- HMC712ALP3CETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Attenuators
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
HMC712ALP3CETR.pdf
- Description:
- RF ATTENUATOR 28DB 50OHM 16VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,874
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Product details
Overview
HMC712ALP3CETR from Analog Devices is a GaAs MMIC voltage-variable analog attenuator operating from 5 to 26.5 GHz with 28 dB attenuation range, +28 dBm input P1dB, and absorptive topology in a 3×3 mm QFN package. It serves as a dual-stage RF signal level controller in microwave transceivers requiring precise analog DC voltage control of amplitude across Ka-band.
For engineers reviewing the HMC712ALP3CETR datasheet, HMC712ALP3CETR pinout, HMC712ALP3CETR application, or HMC712ALP3CETR equivalent, key selection criteria include its 5–26.5 GHz bandwidth, dual Vctrl interface (−5 V to 0 V), 32 dBm input IP3, RoHS-compliant LFCSP-16 package, and absorptive architecture enabling stable impedance under all attenuation states.
Technical Context
The HMC712ALP3CETR implements two shunt-type attenuator stages controlled independently by Vctrl1 and Vctrl2, each accepting −5 V to 0 V at 10 µA. Optimal linearity is achieved via sequential control: Vctrl1 varied first (−5 V → 0 V) with Vctrl2 fixed at −5 V, then Vctrl2 varied (−5 V → 0 V) with Vctrl1 held at 0 V.
Its absorptive topology maintains ≥10 dB output return loss and ≥12 dB input return loss across full frequency and attenuation range. Insertion phase variation is characterized per control voltage and frequency (e.g., ±180° at 25 GHz), supporting phase-sensitive AGC and calibration-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 5 – 26.5 GHz: Full specified performance across Ka-band, enabling single-component coverage for point-to-point radio and radar front-ends. |
| Attenuation Range | 23 – 37 dB (15–26.5 GHz typ/max): Enables wide dynamic range control without cascading stages in VSAT and ECM systems. |
| Input P1dB | +28 dBm: Supports high-power RF paths without compression in test instrumentation and military transmitters. |
| Input IP3 | +32 dBm (two-tone, 10 dBm/tone): Ensures low intermodulation distortion in multi-carrier microwave receivers. |
| Control Voltage | −5 V to 0 V per Vctrl pin: Compatible with standard DAC outputs and op-amp driver circuits without level-shifting. |
| Package | 16-lead 3×3 mm LFCSP (CP-16-52): Exposed paddle enables low thermal resistance (66 °C/W) for sustained 1 W dissipation at 85 °C ambient. |
Pinout & Package
Package: 16-lead RoHS-compliant lead frame chip scale package (LFCSP), 3.0 × 3.0 × 0.85 mm body, exposed ground paddle, MSL3 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 9, 11, 12 | Ground Paddle | RF/DC ground connection; must be soldered to PCB ground plane via multiple vias for thermal and impedance stability. |
| 3 | RFIN | 50 Ω DC-coupled RF input; requires external blocking capacitor if DC bias ≠ 0 V. |
| 5, 8, 13–16 | No Connect | Internally unused; must be tied to PCB RF ground to suppress parasitic resonance and improve return loss. |
| 6 | Vctrl1 | Analog control input for first attenuation stage; −5 V to 0 V sets attenuation level with 10 µA input current. |
| 7 | Vctrl2 | Analog control input for second attenuation stage; −5 V to 0 V enables extended range and fine resolution when Vctrl1 = 0 V. |
| 10 | RFOUT | 50 Ω DC-coupled RF output; requires external blocking capacitor if DC bias ≠ 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Wideband Absorptive Topology | Maintains ≥10 dB return loss at RFOUT and ≥12 dB at RFIN under all attenuation states, eliminating need for external matching networks. |
| Dual Independent Control | Separate Vctrl1/Vctrl2 pins allow staged attenuation sequencing to preserve linearity-critical for AGC loops in radar receivers. |
| High Power Handling | +30 dBm absolute max RF input power and +28 dBm P1dB enable use in high-dynamic-range transceiver chains without external limiting. |
| Temperature-Stable Performance | Specified operation from −40 °C to +85 °C with <±1 dB attenuation drift over temperature at 10 GHz, supporting outdoor microwave radios. |
| Low ESD Sensitivity Mitigation | Class 0 HBM rating (150 V) confirmed; requires strict handling per ESD protocols but supports robust manufacturing integration. |
Applications
| Point-to-Point Radio | VSAT Terminal |
|---|---|
Use Scenario: Adaptive gain control in Ka-band backhaul transceivers compensating for rain fade and path loss variations. IC Role / Device Role / Timing Role: Analog RF signal level conditioner placed between LNA and mixer to maintain constant IF power into ADC. Use Value: 28 dB attenuation range and +32 dBm IP3 prevent intermodulation distortion while enabling closed-loop AGC with <1 dB settling error. |
Use Scenario: Transmit power leveling in satellite uplink amplifiers to comply with regulatory EIRP limits across varying antenna pointing angles. IC Role / Device Role / Timing Role: Final-stage analog attenuator in transmit chain, driven by microcontroller DAC for real-time power adjustment. Use Value: Absorptive architecture ensures stable 50 Ω load seen by PA under all attenuation settings, preventing instability or reflected power damage. |
| Test Instrumentation | Military Radar ECM |
Use Scenario: Precision RF stimulus level control in vector network analyzers and signal generators requiring calibrated amplitude sweeps. IC Role / Device Role / Timing Role: Programmable attenuator in signal path with <0.1 dB repeatability and minimal phase perturbation. Use Value: Characterized insertion phase vs. Vctrl enables phase-compensated amplitude control-essential for coherent measurement accuracy. |
Use Scenario: Jammer output power management during electronic countermeasures, where rapid, repeatable attenuation changes mask emitter identity. IC Role / Device Role / Timing Role: Fast-settling analog attenuator in broadband jamming waveform generator, controlled by FPGA GPIOs via DAC. Use Value: 5–26.5 GHz coverage supports multi-band ECM payloads; +28 dBm P1dB handles high-power jamming signals without compression artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-variable attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC657LP3E | Narrower bandwidth (6–18 GHz), lower attenuation range (20 dB), no dual-control architecture-single Vctrl only. | Limited to X-band systems; unsuitable for Ka-band radar or 26.5 GHz test equipment. | Select HMC657LP3E only when cost sensitivity outweighs bandwidth and control flexibility requirements. |
| Qorvo QM11036 | GaAs pHEMT-based, 7–27 GHz, 30 dB range, but requires −3 V to +3 V control (bipolar), not −5 V to 0 V. | Needs level-shifting circuitry for compatibility with standard unipolar DACs; higher quiescent current (25 mA vs. 20 µA). | Choose QM11036 only when bipolar control interface and marginally wider upper band are critical design constraints. |
Compared with HMC657LP3E and QM11036, the HMC712ALP3CETR uniquely delivers dual-stage analog control across full Ka-band with unipolar −5 V to 0 V interface, absorptive stability, and industry-leading +32 dBm IP3-making it optimal for high-fidelity, wide-dynamic-range microwave systems.
Availability
HMC712ALP3CETR is available at Aetrix Electronics and suitable for point-to-point radio, VSAT terminal, and military radar ECM applications requiring stable component supply, traceable sourcing, and long-term lifecycle support.
Supply support for HMC712ALP3CETR 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 ICs for precision signal processing.
The HMC712ALP3CETR belongs to Analog Devices' Hittite Microwave MMIC product line, engineered specifically for broadband microwave communication, defense, and instrumentation systems demanding wideband analog control with high linearity and thermal reliability.
FAQ
What is the operating frequency range of the HMC712ALP3CETR?
The HMC712ALP3CETR operates from 5 GHz to 26.5 GHz with fully characterized performance across this Ka-band span. Insertion loss, attenuation range, and return loss are specified in 5–10 GHz, 10–15 GHz, and 15–26.5 GHz sub-bands per the official datasheet. This makes the HMC712ALP3CETR suitable for applications including point-to-point radio, VSAT, and radar where broad instantaneous bandwidth is required.
Does the HMC712ALP3CETR support single-voltage control mode?
Yes, the HMC712ALP3CETR supports single-voltage control: connecting Vctrl1 and Vctrl2 together allows full 28 dB attenuation range using one analog control voltage. However, this configuration incurs a measurable degradation in input IP3-typically ~2–3 dB reduction versus optimized dual-control sequencing-so it is recommended only when control simplicity outweighs linearity requirements in the HMC712ALP3CETR design.
What is the thermal resistance and maximum power dissipation of the HMC712ALP3CETR?
The HMC712ALP3CETR has a channel-to-ground paddle thermal resistance of 66 °C/W and supports continuous power dissipation of 1 W at 85 °C case temperature. Its exposed paddle must be soldered to a thermally robust PCB ground plane with ≥6 vias to achieve this rating. The device's absolute maximum channel temperature is 175 °C, and operating ambient range is −40 °C to +85 °C.
How does the absorptive topology of the HMC712ALP3CETR benefit system design?
The absorptive topology of the HMC712ALP3CETR ensures that both input and output ports maintain ≥10 dB return loss across the full 5–26.5 GHz band and entire 28 dB attenuation range. This eliminates reflections that could destabilize preceding amplifiers or cause measurement errors-critical in test instrumentation and radar transceivers. Unlike reflective attenuators, the HMC712ALP3CETR presents a stable 50 Ω load regardless of control voltage setting.
What are the absolute maximum ratings for control voltage on the HMC712ALP3CETR?
The HMC712ALP3CETR specifies an absolute maximum control voltage range of −6 V to +0.3 V on both Vctrl1 and Vctrl2 pins. Operation outside this range risks permanent damage. The functional control range is −5 V to 0 V at ≤10 µA input current per pin. Exceeding −6 V may forward-bias internal protection diodes; exceeding +0.3 V risks gate oxide breakdown in the GaAs MMIC core.
HMC712ALP3CETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-VFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Attenuation Value:
- 28dB
- Frequency Range:
- 5 GHz ~ 26.5 GHz
- Power (Watts):
- -
- Impedance:
- 50 Ohms
- Grade:
- -
- Qualification:
- -
HMC712ALP3CETR FAQ
1.How can I place an order for HMC712ALP3CETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC712ALP3CETR 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 HMC712ALP3CETR reliable?
The price and inventory of HMC712ALP3CETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC712ALP3CETR is usually 5 days.
3.What payment methods are accepted for HMC712ALP3CETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC712ALP3CETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC712ALP3CETR?
HMC712ALP3CETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC712ALP3CETR 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 HMC712ALP3CETR?
For technical support, including HMC712ALP3CETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC712ALP3CETR requirements.
6.How does Aetrix verify that HMC712ALP3CETR is sourced from the original manufacturer or authorized distributors?
All HMC712ALP3CETR 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 HMC712ALP3CETR meets industry standards.
7.What is the process for return or replacement of HMC712ALP3CETR?
All HMC712ALP3CETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC712ALP3CETR, 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 HMC712ALP3CETR part is unused and in its original packaging.
Return procedure for HMC712ALP3CETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC712ALP3CETR Tags
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