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Analog Devices Inc. HMC547LP3ETR
- Part No.:
- HMC547LP3ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
HMC547LP3ETR.pdf
- Description:
- IC RF SWITCH SPDT 20GHZ 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,937
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Product details
Overview
HMC547LP3ETR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SPDT non-reflective switch operating from DC to 20 GHz, delivering >50 dB isolation up to 5 GHz and 1.6 dB insertion loss at 10 GHz with complementary -5 V/0 V control logic. It serves as an RF signal path selector in microwave front-ends requiring high isolation and broadband performance.
For engineers reviewing the HMC547LP3ETR datasheet, HMC547LP3ETR pinout, HMC547LP3ETR application, or HMC547LP3ETR equivalent, key selection criteria include its non-reflective architecture, QFN 3×3 mm package, -40°C to +85°C operating range, and compatibility with 50 Ω RF systems without external bias supplies.
Technical Context
The HMC547LP3ETR implements a monolithic GaAs MESFET-based SPDT switch with integrated termination for non-reflective operation in both "off" states. Its complementary negative-control interface (A/B pins at -5 V/0 V) eliminates need for level-shifting circuitry and enables direct interfacing with TTL-compatible drivers.
It features matched 50 Ω RF ports (RFC, RF1, RF2), DC-coupled paths requiring external blocking capacitors when DC bias differs from 0 V, and thermal design optimized via exposed paddle grounding-critical for power handling up to +23 dBm hot-switching and +30 dBm peak RF input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 20 GHz - supports full-band microwave switching without band segmentation. |
| Insertion Loss | 1.6 dB @ 10 GHz - ensures minimal signal attenuation in active path for high-fidelity RF routing. |
| Isolation | >50 dB up to 5 GHz - suppresses crosstalk between RF1 and RF2 paths in sensitive receive chains. |
| Switching Speed | 3 ns tRISE/tFALL - enables fast TDD mode transitions in radar and 5G FDD/TDD infrastructure. |
| Control Logic | -5 V / 0 V complementary - eliminates external bias supply and simplifies digital interface design. |
| Input P1dB | 23 dBm @ 0.5–20 GHz - supports high-dynamic-range operation in transmitter output stages. |
| Input IP3 | 45 dBm @ 0.5–20 GHz - maintains linearity under two-tone conditions in broadband comms systems. |
Pinout & Package
Package: 16-pin leadless QFN, 3 mm × 3 mm × 0.85 mm body, exposed ground paddle, RoHS-compliant matte tin finish (MSL1, 260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFC (Pin 3) | Common RF Input/Output | DC-coupled 50 Ω port; requires external blocking capacitor if DC potential ≠ 0 V. |
| RF1 (Pin 7) | SPDT Path 1 Output | DC-coupled 50 Ω port; selected when A=High, B=Low per truth table. |
| RF2 (Pin 14) | SPDT Path 2 Output | DC-coupled 50 Ω port; selected when A=Low, B=High per truth table. |
| A (Pin 11) | Complementary Control Input | Accepts -5 V (High state) or 0 V (Low state); defines RFC→RF1 path activation. |
| B (Pin 10) | Complementary Control Input | Accepts -5 V (High state) or 0 V (Low state); defines RFC→RF2 path activation. |
| GND (Pins 2,4,6,8,13,15) | RF and Power Ground | Must be soldered to PCB RF ground plane; critical for isolation and thermal dissipation. |
| N/C (Pins 1,5,9,12,16) | No-Connect Terminal | Internally unconnected; recommended to tie to PCB RF ground to improve isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective architecture | Terminated "off" paths minimize VSWR degradation and prevent signal reflections in cascaded RF stages. |
| QFN 3×3 mm SMT package | Enables high-density RF layout with low parasitic inductance; exposed paddle ensures <250 °C/W thermal resistance in terminated path. |
| Complementary -5 V/0 V control | Eliminates need for positive/negative voltage rails or level shifters-reduces BOM count and layout complexity. |
| DC–20 GHz bandwidth | Supports single-component replacement across L-, S-, C-, X-, Ku-, and lower K-band applications without redesign. |
| ESD robustness | Class 1A HBM rating (≥250 V) ensures reliability during handling and assembly in production environments. |
Applications
| Basestation Infrastructure | Fiber Optics & Broadband Telecom |
|---|---|
|
Use Scenario: TDD/FDD antenna switching in 4G/5G macro base stations with dual-polarized arrays. IC Role / Device Role / Timing Role: SPDT RF path selector routing transmit/receive signals between TRX modules and antenna ports. Use Value: >50 dB isolation at sub-6 GHz prevents receiver desensitization during high-power transmission bursts. |
Use Scenario: Wavelength-selective switching in coherent optical transceivers with integrated RF calibration loops. IC Role / Device Role / Timing Role: Non-reflective RF path selector enabling dynamic calibration signal injection without disturbing main data path impedance. Use Value: 1.6 dB insertion loss at 10 GHz preserves SNR margin in high-speed DAC/ADC calibration channels. |
| Microwave Radio & VSAT | Test Instrumentation |
|
Use Scenario: LO signal routing in dual-conversion microwave radios for satellite ground terminals (VSAT). IC Role / Device Role / Timing Role: High-isolation SPDT switch selecting between primary and diversity LO sources in phase-coherent receivers. Use Value: >45 dB isolation up to 15 GHz ensures LO leakage remains below -90 dBm in adjacent channel measurements. |
Use Scenario: Automated RF path configuration in vector network analyzers and signal generators. IC Role / Device Role / Timing Role: Fast-switching broadband selector enabling multi-port calibration and stimulus routing without mechanical relays. Use Value: 3 ns tRISE/tFALL reduces measurement cycle time by >40% versus electromechanical alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC349ALP3E | Higher insertion loss (2.2 dB @ 10 GHz), lower isolation (>40 dB only to 8 GHz), same -5 V/0 V control. | Optimized for lower-frequency industrial radar (≤8 GHz); less suitable for 5G FR1 or VSAT above 12 GHz. | Select HMC349ALP3E only if cost sensitivity outweighs 20 GHz bandwidth and isolation requirements. |
| Qorvo QM11036 | Si-based, 0.1–6 GHz range, +3.3 V CMOS control, higher P1dB (30 dBm), but reflective architecture. | Targeted at sub-6 GHz IoT and cellular infrastructure where reflection tolerance allows simpler matching. | Choose QM11036 for battery-powered or low-voltage designs below 6 GHz; avoid where non-reflective behavior is mandatory. |
Compared with HMC547LP3ETR, HMC349ALP3E trades bandwidth and isolation for legacy compatibility, while QM11036 sacrifices non-reflective operation and frequency range for CMOS integration and lower supply voltage-neither offers drop-in replacement capability.
Availability
HMC547LP3ETR is available at Aetrix Electronics and suitable for basestation infrastructure, fiber optics & broadband telecom, and test instrumentation requiring stable component supply across extended temperature ranges and high-volume RF production.
Supply support for HMC547LP3ETR 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 RF, microwave, and millimeter-wave solutions for communications and defense.
The HMC547LP3ETR belongs to Hittite's GaAs MMIC SPDT switch product line, designed specifically for broadband non-reflective signal routing in microwave infrastructure where isolation, speed, and thermal reliability are critical.
FAQ
What is the operating temperature range for the HMC547LP3ETR?
The HMC547LP3ETR operates over -40°C to +85°C ambient temperature. Its thermal resistance of 250 °C/W (terminated path) and 420 °C/W (insertion loss path) enables reliable performance in outdoor basestation enclosures and high-density test equipment without forced cooling, provided the exposed paddle is fully soldered to a thermally robust PCB ground plane.
Does the HMC547LP3ETR require external DC blocking capacitors?
Yes, the HMC547LP3ETR requires external DC blocking capacitors on RFC, RF1, and RF2 pins whenever the connected RF line has a DC potential different from 0 V. All three RF ports are DC-coupled and internally matched to 50 Ω, so blocking capacitors prevent unintended bias current flow and maintain impedance integrity across DC–20 GHz.
Can the HMC547LP3ETR be used in reflective switch configurations?
No-the HMC547LP3ETR is explicitly designed as a non-reflective SPDT switch with internal 50 Ω terminations on inactive paths. Using it in a reflective configuration would violate its specified return loss performance (≥17 dB "On State", ≥13 dB "Off State" up to 20 GHz) and risk system-level VSWR instability and measurement error in calibrated RF systems.
What is the maximum RF input power the HMC547LP3ETR can handle?
The HMC547LP3ETR supports +30 dBm peak RF input power with control voltage at -5 V, and +23 dBm hot-switch power level-defined as the maximum power that can be applied while toggling the switch state without degradation. Exceeding these limits risks permanent damage due to channel temperature exceeding 150 °C, especially without adequate PCB thermal management.
How does the HMC547LP3ETR differ from the HMC547LP3 variant?
The HMC547LP3ETR is the RoHS-compliant, lead-free version with 100% matte tin lead finish and MSL1 rating (260 °C peak reflow), whereas HMC547LP3 uses Sn/Pb solder finish and has a 235 °C max reflow profile. Both share identical electrical specifications, pinout, and package dimensions; the "ETR" suffix denotes tape-and-reel packaging and environmental compliance-not functional differentiation.
HMC547LP3ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Topology:
- Absorptive
- Circuit:
- SPDT
- Frequency Range:
- 0Hz ~ 20GHz
- Isolation:
- 38dB
- Insertion Loss:
- 2dB
- Test Frequency:
- 20GHz
- P1dB:
- 23dBm
- IIP3:
- 45dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
HMC547LP3ETR FAQ
1.How can I place an order for HMC547LP3ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC547LP3ETR 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 HMC547LP3ETR reliable?
The price and inventory of HMC547LP3ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC547LP3ETR is usually 5 days.
3.What payment methods are accepted for HMC547LP3ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC547LP3ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC547LP3ETR?
HMC547LP3ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC547LP3ETR 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 HMC547LP3ETR?
For technical support, including HMC547LP3ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC547LP3ETR requirements.
6.How does Aetrix verify that HMC547LP3ETR is sourced from the original manufacturer or authorized distributors?
All HMC547LP3ETR 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 HMC547LP3ETR meets industry standards.
7.What is the process for return or replacement of HMC547LP3ETR?
All HMC547LP3ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC547LP3ETR, 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 HMC547LP3ETR part is unused and in its original packaging.
Return procedure for HMC547LP3ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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