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Analog Devices Inc. HMC241LP3ETR
- Part No.:
- HMC241LP3ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
HMC241LP3ETR.pdf
- Description:
- IC RF SWITCH SP4T 4GHZ 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,107
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Product details
Overview
HMC241LP3ETR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SP4T non-reflective RF switch operating from DC to 4 GHz, featuring 0.7 dB insertion loss and 43 dB isolation at 2 GHz, with integrated 2:4 TTL decoder and single +5 V supply. It serves as a signal path selector in multi-band front-end modules for wireless infrastructure.
For engineers reviewing the HMC241LP3ETR datasheet, HMC241LP3ETR pinout, HMC241LP3ETR application, or HMC241LP3ETR equivalent, key selection criteria include its DC–4 GHz bandwidth, non-reflective architecture, TTL/CMOS-compatible dual-control interface, and 3×3 mm leadless SMT package with exposed ground paddle.
Technical Context
This monolithic GaAs SP4T switch uses non-reflective topology with internal 50 Ω terminations on all off-state RF ports, eliminating external termination resistors. Its integrated 2:4 decoder reduces control lines from four to two while maintaining TTL/CMOS logic compatibility and true single-supply operation at +5 V ±10%.
Designed for high-isolation RF routing, it delivers stable performance across –40°C to +85°C with thermal resistance of 200°C/W on the insertion-loss path. DC blocking capacitors are required at RFC and RF1–RF4 ports per design specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 4 GHz - supports full-band operation from baseband through WiMAX and WLAN bands without reconfiguration. |
| Insertion Loss | 0.7 dB @ 2 GHz - enables minimal signal attenuation in active signal paths, preserving SNR in receiver chains. |
| Isolation | 43 dB @ 2 GHz - ensures strong channel-to-channel crosstalk suppression in multi-path antenna switching. |
| Input IP3 | +45 dBm - supports linear operation with two-tone +7 dBm inputs, critical for low-distortion transceiver front ends. |
| Switching Time | 100 ns tON/tOFF - allows fast path reconfiguration compatible with TDD frame timing in LTE/WiMAX systems. |
| Supply Voltage | +5.0 V ±10% - simplifies biasing with standard logic rails; draws only 2.7 mA typical quiescent current. |
| Control Interface | TTL/CMOS-compatible A/B inputs - eliminates level-shifting circuitry and supports direct FPGA/GPIO connection. |
Pinout & Package
Package: 3×3 mm, 16-pin leadless surface-mount (LCC), RoHS-compliant, exposed metal ground paddle, MSL1 rating, matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12, 15 | RF4, RF3, RF2, RF1, RFC | DC-coupled 50 Ω RF ports requiring external blocking capacitors; RFC is common RF port, RF1–RF4 are selectable outputs. |
| 2, 3, 10, 11, 13 | N/C | No-connect pins; must be soldered to PCB RF ground to maximize isolation and thermal dissipation. |
| 5, 14, 16 | GND | Ground terminals including exposed bottom paddle; all must connect directly to solid RF ground plane. |
| 6 | Vdd | +5 V supply input; decoupling capacitor required close to pin for RF stability. |
| 7 | B | Binary control input (LSB); logic high selects RF2 or RF4 depending on A state per truth table. |
| 8 | A | Binary control input (MSB); combined with B, selects RFC→RF1/RF2/RF3/RF4 path per 2:4 decode logic. |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective SP4T architecture | Internal 50 Ω terminations on all off-state RF ports eliminate need for external resistors and reduce board area. |
| Integrated 2:4 TTL decoder | Reduces control interface to two logic lines (A/B) instead of four, lowering FPGA I/O count and simplifying routing. |
| Single +5 V supply | Eliminates negative or dual-rail supplies; compatible with standard digital logic rails and reduces power subsystem complexity. |
| DC–4 GHz bandwidth | Covers cellular (700 MHz–2.7 GHz), WLAN (2.4/5 GHz), WiMAX (2.3–3.8 GHz), and DBS (1–2 GHz) bands in one device. |
| Exposed ground paddle | Enables low-inductance RF grounding and efficient thermal transfer to PCB, supporting +85°C continuous operation. |
Applications
| Base Station Front End | WLAN Access Point RF Switching |
|---|---|
|
Use Scenario: Dynamic antenna path selection between multiple transceivers and shared antenna arrays in macro/pico cell BTS. IC Role / Device Role / Timing Role: SP4T RF switch routing transmit/receive signals between TRX modules and antenna ports under baseband control. Use Value: 43 dB isolation prevents inter-modulation between co-located carriers; 0.7 dB loss preserves EIRP and receiver sensitivity. |
Use Scenario: Band-selectable antenna switching in dual-band (2.4/5 GHz) enterprise APs supporting MU-MIMO and beamforming. IC Role / Device Role / Timing Role: Non-reflective RF path selector enabling simultaneous 2.4 GHz and 5 GHz operation with minimal coupling. Use Value: DC–4 GHz bandwidth covers both ISM bands; TTL decoding allows seamless integration with Wi-Fi SoC GPIOs. |
| CATV/DBS Signal Routing | RF Test Equipment Signal Path Control |
|
Use Scenario: Input multiplexing in multi-tuner set-top boxes or headend equipment handling QAM/OFDM signals up to 2.2 GHz. IC Role / Device Role / Timing Role: Low-loss, high-isolation SP4T switch selecting between satellite LNB outputs or cable demodulator inputs. Use Value: 0.9 dB max insertion loss at 2.5 GHz maintains MER; 35 dB isolation prevents adjacent-channel interference in dense tuner layouts. |
Use Scenario: Automated RF path configuration in vector network analyzers and signal generators during calibration and sweep routines. IC Role / Device Role / Timing Role: Fast-switching SP4T element routing test signals between DUT ports, reference arms, and attenuators. Use Value: 100 ns switching time enables sub-millisecond path changes; +27 dBm input handling supports high-power verification modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SP4T RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11036 | 0.8 dB IL @ 2 GHz, 40 dB isolation @ 2 GHz, +3.3 V supply, no integrated decoder. | Requires external logic for 4-line control; better suited for space-constrained 3.3 V systems. | Select when lower supply voltage and smaller footprint (2.5×2.5 mm) outweigh decoder convenience. |
| Skyworks SKY13370-374LF | 0.6 dB IL @ 2 GHz, 37 dB isolation @ 2 GHz, +5 V supply, integrated decoder, 4 GHz range. | Lower isolation limits use in high-density multi-carrier environments; same control interface. | Prefer where ultra-low insertion loss is prioritized over isolation, e.g., low-power IoT gateways. |
Compared with QM11036 and SKY13370-374LF, the HMC241LP3ETR offers the highest isolation (43 dB) at 2 GHz and integrated TTL decoding-critical for minimizing control logic overhead in complex RF front ends without sacrificing bandwidth or linearity.
Availability
HMC241LP3ETR is available at Aetrix Electronics and suitable for base station infrastructure, WLAN access point design, and RF test instrumentation requiring stable component supply and long-term obsolescence mitigation support.
Supply support for HMC241LP3ETR 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 and microwave solutions for communications and defense markets.
The HMC241LP3ETR belongs to Hittite's legacy GaAs MMIC SPnT switch family, engineered for broadband, high-isolation RF signal routing in wireless infrastructure and test equipment where reliability and repeatable RF performance are essential.
FAQ
What is the operating temperature range for the HMC241LP3ETR?
The HMC241LP3ETR operates reliably from –40°C to +85°C ambient temperature. Its GaAs die and thermal design-including 200°C/W thermal resistance on the insertion-loss path and exposed ground paddle-enable stable RF performance across this full industrial range without derating in typical PCB layouts with proper grounding.
Does the HMC241LP3ETR require external DC blocking capacitors?
Yes, the HMC241LP3ETR requires external DC blocking capacitors at RFC and all RF1–RF4 ports, as stated in the official datasheet notes. These capacitors prevent DC bias from propagating into connected components and ensure proper 50 Ω AC coupling; typical values used on evaluation boards are 100 pF in 0402 package.
What is the maximum RF input power the HMC241LP3ETR can handle?
The HMC241LP3ETR supports +27 dBm maximum RF input power from 0.5–4.0 GHz and +20 dBm from 0.05–0.5 GHz, per absolute maximum ratings. At +5 V supply, its input P1dB is +26 dBm and input IP3 is +45 dBm, confirming robust linearity for high-dynamic-range front ends.
How does the integrated 2:4 decoder simplify system design with the HMC241LP3ETR?
The integrated 2:4 TTL decoder in the HMC241LP3ETR reduces required control lines from four to two (A and B inputs), eliminating external logic gates or microcontroller GPIO expansion. This simplifies PCB routing, lowers BOM count, and accelerates firmware development-especially in space-constrained or cost-sensitive RF modules using the HMC241LP3ETR.
Is the HMC241LP3ETR pin-compatible with the HMC241LP3 variant?
Yes, the HMC241LP3ETR is RoHS-compliant and pin-, package-, and functionally identical to the HMC241LP3, differing only in leadframe plating (100% matte tin vs. Sn/Pb) and peak reflow temperature (260°C vs. 235°C). Both share identical pinout, electrical specs, and truth table behavior-enabling drop-in replacement in new designs.
HMC241LP3ETR 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:
- SP4T
- Frequency Range:
- 0Hz ~ 4GHz
- Isolation:
- 30dB
- Insertion Loss:
- 1.2dB
- Test Frequency:
- 4GHz
- P1dB:
- 26dBm
- 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)
HMC241LP3ETR FAQ
1.How can I place an order for HMC241LP3ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC241LP3ETR 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 HMC241LP3ETR reliable?
The price and inventory of HMC241LP3ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC241LP3ETR is usually 5 days.
3.What payment methods are accepted for HMC241LP3ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC241LP3ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC241LP3ETR?
HMC241LP3ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC241LP3ETR 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 HMC241LP3ETR?
For technical support, including HMC241LP3ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC241LP3ETR requirements.
6.How does Aetrix verify that HMC241LP3ETR is sourced from the original manufacturer or authorized distributors?
All HMC241LP3ETR 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 HMC241LP3ETR meets industry standards.
7.What is the process for return or replacement of HMC241LP3ETR?
All HMC241LP3ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC241LP3ETR, 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 HMC241LP3ETR part is unused and in its original packaging.
Return procedure for HMC241LP3ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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