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Analog Devices Inc. HMC252QS24ETR
- Part No.:
- HMC252QS24ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
HMC252QS24ETR.pdf
- Description:
- IC RF SWITCH SP6T 3GHZ 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,324
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Product details
Overview
HMC252QS24ETR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SP6T non-reflective RF switch operating from DC to 3 GHz, featuring integrated 3:6 TTL decoder, single-supply operation at +3.3 V or +5 V, and 0.9 dB typical insertion loss at 2 GHz - deployed in base station front-ends and wireless LAN signal routing.
For engineers reviewing the HMC252QS24ETR datasheet, HMC252QS24ETR pinout, HMC252QS24ETR application, or HMC252QS24ETR equivalent, key selection criteria include non-reflective off-state performance, TTL/CMOS-compatible control logic, thermal resistance of 117 °C/W on insertion path, and QSOP-24 package compatibility with RF PCB layout requirements.
Technical Context
The HMC252QS24ETR implements a monolithic GaAs MMIC architecture with integrated 3-bit TTL decoder driving six RF paths via non-reflective topology. It operates across DC–3 GHz in 50 Ω systems with true CMOS/TTL voltage thresholds and requires external DC blocking capacitors at all RF ports (RFC, RF1–RF6).
Control logic follows a defined truth table with three inputs (A/B/C) selecting one of six RF paths or an "ALL OFF" state. Biasing supports dual supply options (+3.3 V or +5 V), with quiescent current ≤8 mA and absolute max VDD = +7 Vdc, while thermal resistance varies by path (117 °C/W for insertion, 210 °C/W for terminated).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 3.0 GHz - supports broadband RF routing without band-switching hardware |
| Insertion Loss (2 GHz) | 0.9 dB typical - enables low-loss signal path selection in multi-antenna systems |
| Isolation (1 GHz) | 41 dB typical - suppresses crosstalk between active and inactive RF paths |
| Input P1dB | +24 dBm (0.3–3.0 GHz) - handles high-power transmit/receive switching in CATV and MMDS |
| Return Loss (On State) | 18 dB (DC–2.5 GHz) - ensures impedance match stability during path activation |
| Switching Time | 35 ns tRISE/tFALL - supports fast TDD mode transitions in wireless infrastructure |
| Supply Voltage | +3.3 V or +5 V - simplifies biasing with existing digital rail infrastructure |
Pinout & Package
Package: 24-lead QSOP (Quad Small Outline Package), RoHS-compliant matte tin plating, MSL1 rating, body material: low-stress injection-molded plastic with silica/silicon impregnation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Bias rail for internal switch core and decoder; accepts +3.3 V or +5 V ± tolerance |
| A, B, C | TTL/CMOS control inputs | 3-bit address lines selecting RF path per truth table; compatible with 3.3 V/5 V logic families |
| RFC | Common RF port | Single-pole input/output node requiring DC blocking capacitor |
| RF1–RF6 | RF output terminals | Six throw ports, each requiring DC blocking capacitor; non-reflective when off |
| GND (Pins 1, 2, 3, 4, 5, 6, 19, 20, 21, 22, 23, 24) | RF and power ground | All ground leads must be soldered directly to PCB RF ground plane per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective SP6T topology | Maintains 50 Ω termination on unselected paths, minimizing system-level VSWR degradation |
| Integrated 3:6 TTL decoder | Reduces external logic count - only 3 control lines needed instead of 6 individual drivers |
| Wideband DC–3 GHz operation | Eliminates need for multiple narrowband switches across cellular, WiMAX, and DBS bands |
| True TTL/CMOS compatibility | Supports direct interface with FPGA/CPU GPIO without level-shifting circuitry |
| Low thermal resistance (117 °C/W) | Enables sustained RF power handling without derating in compact base station modules |
Applications
| Base Station Front-End | CATV/DBS Signal Routing |
|---|---|
Use Scenario: Antenna diversity switching and TRX path selection in LTE/FDD/TDD macro base stations. IC Role / Device Role / Timing Role: SP6T RF switch controlling signal flow between transceiver IC and multiple antenna elements. Use Value: 0.9 dB insertion loss and 41 dB isolation preserve EVM and ACLR performance across 700–2700 MHz bands. |
Use Scenario: Channel selection and signal distribution in head-end and set-top box RF signal chains. IC Role / Device Role / Timing Role: Non-reflective switch enabling seamless channel hopping without disrupting downstream amplifiers. Use Value: DC–3 GHz bandwidth covers full CATV spectrum (54–1002 MHz) and DBS L-band (950–2150 MHz) in one device. |
| Wireless LAN Access Point | RF Test Equipment |
Use Scenario: Multi-band (2.4/5 GHz) antenna switching and MIMO path calibration in enterprise APs. IC Role / Device Role / Timing Role: High-speed RF path selector synchronizing with WLAN MAC layer timing. Use Value: 35 ns switching time meets IEEE 802.11ac/ax TDD guard interval requirements. |
Use Scenario: Automated signal path configuration in vector network analyzers and RF parametric test sets. IC Role / Device Role / Timing Role: Precision RF multiplexer enabling repeatable calibration and DUT interconnection. Use Value: Stable 18 dB return loss (on-state) and <1.3 dB insertion loss variation ensure measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SP6T RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11036 | SP6T, GaAs pHEMT, 0.05–6.0 GHz, +5 V only, no integrated decoder | Requires external 3-to-6 decoder logic; higher frequency range but no +3.3 V option | Preferred when >3 GHz coverage or lower insertion loss (<0.7 dB @ 2.5 GHz) is required |
| Skyworks SKY13372-374LF | SP6T, SOI process, DC–3.5 GHz, +2.5–5.0 V, integrated decoder, 1.1 dB IL @ 2 GHz | SOI-based; better linearity (IP3 = 48 dBm) but higher insertion loss than HMC252QS24ETR | Chosen for improved harmonic suppression in sensitive receiver front-ends |
Compared with QM11036 and SKY13372-374LF, the HMC252QS24ETR uniquely combines +3.3 V/+5 V dual-supply support, integrated TTL decoder, and sub-1 dB insertion loss below 2.5 GHz - making it optimal for cost-sensitive, space-constrained infrastructure designs where supply flexibility and minimal external logic are critical.
Availability
HMC252QS24ETR is available at Aetrix Electronics and suitable for base station, CATV/DBS, and wireless LAN applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp.
Supply support for HMC252QS24ETR 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 maintains its high-frequency RF portfolio, specializing in microwave, mmWave, and RF front-end solutions for communications and defense markets.
The HMC252QS24ETR belongs to Hittite's legacy GaAs MMIC SPnT switch family, designed specifically for broadband non-reflective signal routing in wireless infrastructure and test equipment where integration, reliability, and wideband performance are essential.
FAQ
What is the maximum RF input power the HMC252QS24ETR can handle?
The HMC252QS24ETR supports +26 dBm maximum RF input power from 0.5–3.0 GHz when biased at +5 V, and +24 dBm typical P1dB across 0.3–3.0 GHz. Absolute maximum ratings specify +26 dBm (0.5–3.0 GHz) and +20 dBm (0.05–0.5 GHz) under +5 V bias. Derating applies above +85 °C ambient.
Does the HMC252QS24ETR require external DC blocking capacitors?
Yes, the HMC252QS24ETR requires external DC blocking capacitors at RFC and all six RF ports (RF1–RF6), as stated in the datasheet notes. This is mandatory to prevent bias feed-through and maintain proper RF port DC isolation, especially given its non-reflective architecture and integrated decoder.
Is the HMC252QS24ETR pin-compatible with the HMC252QS24?
Yes, the HMC252QS24ETR is pin-compatible with the HMC252QS24. Both share identical 24-lead QSOP footprint, pin functions, and electrical interface. The "E" suffix denotes RoHS-compliant matte tin plating (vs. Sn/Pb on HMC252QS24), with identical MSL1 rating and reflow profile (260 °C peak).
What is the operating temperature range for the HMC252QS24ETR?
The HMC252QS24ETR is specified for continuous operation from –40 °C to +85 °C ambient. Its thermal resistance is 117 °C/W on the insertion-loss path and 210 °C/W on the terminated path, enabling reliable performance in outdoor base station enclosures and thermally constrained access points.
Can the HMC252QS24ETR operate with 3.3 V logic control signals while using a 5 V supply?
Yes, the HMC252QS24ETR supports mixed-voltage operation: TTL/CMOS control inputs (A/B/C) accept 0–0.8 V low and 2.0–5.0 V high thresholds when VDD = +5 V, allowing direct interface with 3.3 V logic without level shifters - confirmed in the "TTL/CMOS Control Voltages" table.
HMC252QS24ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Topology:
- Absorptive
- Circuit:
- SP6T
- Frequency Range:
- 0Hz ~ 3GHz
- Isolation:
- 29dB
- Insertion Loss:
- 1.3dB
- Test Frequency:
- 3GHz
- P1dB:
- 24dBm
- IIP3:
- 46dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- 3.3V, 5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QSOP
HMC252QS24ETR FAQ
1.How can I place an order for HMC252QS24ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC252QS24ETR 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 HMC252QS24ETR reliable?
The price and inventory of HMC252QS24ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC252QS24ETR is usually 5 days.
3.What payment methods are accepted for HMC252QS24ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC252QS24ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC252QS24ETR?
HMC252QS24ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC252QS24ETR 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 HMC252QS24ETR?
For technical support, including HMC252QS24ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC252QS24ETR requirements.
6.How does Aetrix verify that HMC252QS24ETR is sourced from the original manufacturer or authorized distributors?
All HMC252QS24ETR 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 HMC252QS24ETR meets industry standards.
7.What is the process for return or replacement of HMC252QS24ETR?
All HMC252QS24ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC252QS24ETR, 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 HMC252QS24ETR part is unused and in its original packaging.
Return procedure for HMC252QS24ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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