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Analog Devices Inc. HMC252AQS24
- Part No.:
- HMC252AQS24
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
HMC252AQS24.pdf
- Description:
- IC RF SWITCH SP8T 2.5GHZ 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,222
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Product details
Overview
HMC252AQS24 from Analog Devices is a GaAs MMIC SP6T non-reflective RF switch operating from DC to 3.0 GHz, featuring 1.0 dB typical insertion loss at 2 GHz, 40 dB isolation at 2 GHz (VDD = +5 V), and integrated 3:6 TTL decoder requiring only three control lines. It serves as a single-chip replacement for multiple SP4T/SPDT switches in base station and wireless LAN front-end signal routing.
For engineers reviewing the HMC252AQS24 datasheet, HMC252AQS24 pinout, HMC252AQS24 application, or HMC252AQS24 equivalent, key selection criteria include its non-reflective SP6T architecture, +3.3 V to +5 V single-supply operation, 24-lead QSOP package, DC–3 GHz bandwidth, and TTL/CMOS-compatible control interface with defined low/high voltage thresholds.
Technical Context
The HMC252AQS24 implements a monolithic GaAs MMIC design with integrated bias network and on-die 3:6 decoder logic, eliminating external decoding ICs. Its non-reflective topology terminates all off-state RF ports internally to 50 Ω, ensuring stable impedance during path switching.
It supports dual supply operation (+3.3 V or +5 V) with corresponding control voltage thresholds (e.g., HIGH = +2.0–+3.3 V at VDD = +3.3 V), and requires DC blocking capacitors at RFC and all six RF ports per datasheet note.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 3.0 GHz - enables broadband RF signal routing without band-select filtering. |
| Insertion Loss (2 GHz) | 1.0 dB typical - minimizes signal attenuation in active path, preserving system SNR. |
| Isolation (2 GHz, VDD = +5 V) | 40 dB - suppresses crosstalk between selected and unselected RF paths. |
| Return Loss (On-State, DC–1 GHz) | 23 dB - ensures good impedance match into active path, reducing reflections. |
| Input P1dB (0.3–3.0 GHz) | 24 dBm at VDD = +5 V - supports moderate-power transmit/receive front-end operation. |
| Switching Time (tON/tOFF) | 70 ns max - enables fast channel reconfiguration in time-division systems. |
| Supply Voltage Range | +3.3 V ±5% or +5.0 V ±10% - allows flexible integration into mixed-voltage RF subsystems. |
Pinout & Package
Package: 24-lead QSOP (RoHS-compliant, MSL1, matte Sn finish), body material: low-stress injection molded plastic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Bias source for internal GaAs FETs and decoder logic; accepts +3.3 V or +5 V. |
| A, B, C | TTL/CMOS control inputs | 3-bit address lines driving integrated 3:6 decoder; define selected RF path or ALL OFF state. |
| RFC | Common RF port | Single-pole input/output terminal; connects to antenna, transceiver, or filter bank. |
| RF1–RF6 | Throw terminals | Six independent RF output paths; each presents 50 Ω termination when de-selected (non-reflective). |
| GND (Pins 1, 2, 3, 4, 5, 6, 19, 20, 21, 22, 23, 24) | RF and digital ground | Multiple dedicated ground pins ensure low-inductance return paths for RF and control signals. |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective SP6T architecture | Internally terminates all off-state RF ports to 50 Ω, preventing impedance discontinuities during switching. |
| Integrated 3:6 TTL decoder | Reduces external component count by eliminating discrete logic; only three control lines needed. |
| Single positive supply operation | Supports both +3.3 V and +5 V rails without level-shifting circuitry. |
| TTL/CMOS-compatible control | Defined input thresholds (e.g., HIGH = +2.0–+3.3 V at VDD = +3.3 V) ensure reliable interfacing with FPGA/microcontroller GPIO. |
| DC–3.0 GHz bandwidth | Validated performance across full range enables reuse in multi-band CATV, MMDS, and WLAN designs. |
Applications
| Base Station Front-End | CATV/DBS Signal Routing |
|---|---|
Use Scenario: Dynamic antenna switching and band selection in LTE/5G macrocell and small cell transceivers. IC Role / Device Role / Timing Role: SP6T RF switch routing RF signal between power amplifier, LNA, and antenna array elements. Use Value: Non-reflective behavior prevents VSWR degradation during switching, maintaining PA stability and linearity. | Use Scenario: Channel selection and signal path management in multi-tuner cable set-top boxes and satellite receivers. IC Role / Device Role / Timing Role: High-isolation RF switch selecting one of six downstream filter/demodulator paths from common IF or RF input. Use Value: 40 dB isolation at 2 GHz suppresses inter-channel interference in dense spectral environments. |
| Wireless LAN Access Point | RF Test Equipment |
Use Scenario: Antenna diversity and MIMO path switching in 2.4/5 GHz dual-band Wi-Fi 6/6E access points. IC Role / Device Role / Timing Role: Low-loss SP6T switch enabling rapid reconfiguration of RF chains for beamforming or calibration sequences. Use Value: 1.0 dB insertion loss at 2 GHz preserves EVM and throughput in high-data-rate OFDMA transmissions. | Use Scenario: Automated signal path selection in RF vector network analyzers and signal generators. IC Role / Device Role / Timing Role: Precision RF switch routing test signals between calibration standards, DUT ports, and measurement receivers. Use Value: 70 ns max switching time supports high-throughput automated test sequences without timing bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SP6T RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC547LP3E | SPDT GaAs switch, 0.1–6.0 GHz, no integrated decoder, requires external logic. | Limited to 2-path selection; not drop-in for 6-path routing. | Choose when lower cost, higher frequency (to 6 GHz), and discrete control are acceptable. |
| Qorvo QM11036 | SP6T GaAs switch, 0.05–3.8 GHz, +5 V only, no integrated decoder, 20-pin QFN. | Different pinout and control scheme; lacks TTL/CMOS compatibility at +3.3 V. | Choose when footprint constraints favor QFN or +5 V-only supply simplifies bias design. |
Compared with HMC547LP3E and QM11036, the HMC252AQS24 offers unique integration of 3:6 decoding and true dual-supply TTL/CMOS control in a 24-lead QSOP, enabling direct microcontroller interfacing and eliminating external logic-critical for space-constrained, multi-path RF systems.
Availability
HMC252AQS24 is available at Aetrix Electronics and suitable for base station front-end, CATV/DBS signal routing, and wireless LAN access point designs requiring stable component supply, consistent RF performance, and long-term production continuity.
Supply support for HMC252AQS24 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 leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, automotive, and instrumentation markets since 1965.
The HMC252AQS24 belongs to Analog Devices' Hittite Microwave MMIC switch product line, engineered specifically for wideband, non-reflective RF signal routing in infrastructure and test equipment where integration, reliability, and DC–3 GHz performance are critical.
FAQ
What is the maximum operating temperature for the HMC252AQS24?
The HMC252AQS24 has a specified operating temperature range of –40 °C to +85 °C. This rating is validated under continuous RF and DC bias conditions per the Absolute Maximum Ratings table. Thermal resistance from channel to case is 130 °C/W for the insertion loss path, supporting reliable operation in thermally demanding base station and outdoor wireless applications when mounted with adequate PCB copper area.
Does the HMC252AQS24 require external DC blocking capacitors?
Yes, the HMC252AQS24 requires external DC blocking capacitors at RFC and all six RF ports (RF1–RF6), as explicitly stated in the datasheet notes. These capacitors prevent DC bias from propagating into connected components (e.g., antennas, filters, LNAs) and maintain proper internal biasing. Recommended values include 100 pF (0402) for RF paths and 10,000 pF (0603) for VDD decoupling on evaluation boards.
What happens when the HMC252AQS24 is placed in the "ALL OFF" state?
When the HMC252AQS24 is placed in the "ALL OFF" state (A=B=C=LOW/HIGH per truth table), the RFC port becomes reflective - meaning it is not terminated to 50 Ω. This condition must be avoided in live RF systems, as it causes high VSWR and potential damage to upstream components like power amplifiers. The datasheet explicitly warns that input is reflective in this state.
Can the HMC252AQS24 operate with a +3.3 V supply and still achieve full RF performance?
Yes, the HMC252AQS24 is fully characterized and functional at +3.3 V (±5%). Insertion loss remains 1.0 dB typical at 2 GHz, isolation is 38 dB at 2 GHz, and switching times meet spec (tON/tOFF ≤ 90 ns). Control inputs accept TTL/CMOS logic levels compatible with +3.3 V systems, making the HMC252AQS24 suitable for low-voltage RF subsystems without level translation.
Is the HMC252AQS24 RoHS-compliant and MSL-rated?
Yes, the HMC252AQS24 is RoHS-compliant with 100% matte tin lead finish and carries an MSL1 rating per J-STD-020. Its maximum peak reflow temperature is 260 °C, and it may be assembled using standard lead-free reflow profiles without preconditioning. The package uses low-stress injection molded plastic to minimize warpage and solder joint stress during thermal cycling.
HMC252AQS24 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Strip
- Product Status:
- Obsolete
- RF Type:
- CDMA
- Topology:
- Absorptive
- Circuit:
- SP8T
- Frequency Range:
- 0Hz ~ 2.5GHz
- Isolation:
- 40dB
- Insertion Loss:
- 1dB
- Test Frequency:
- 1GHz
- P1dB:
- -
- IIP3:
- 46dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- 5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QSOP
HMC252AQS24 FAQ
1.How can I place an order for HMC252AQS24 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC252AQS24 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 HMC252AQS24 reliable?
The price and inventory of HMC252AQS24 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC252AQS24 is usually 5 days.
3.What payment methods are accepted for HMC252AQS24?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC252AQS24 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC252AQS24?
HMC252AQS24 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC252AQS24 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 HMC252AQS24?
For technical support, including HMC252AQS24 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC252AQS24 requirements.
6.How does Aetrix verify that HMC252AQS24 is sourced from the original manufacturer or authorized distributors?
All HMC252AQS24 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 HMC252AQS24 meets industry standards.
7.What is the process for return or replacement of HMC252AQS24?
All HMC252AQS24 units undergo pre-shipment inspection (PSI). If there is an issue with HMC252AQS24, 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 HMC252AQS24 part is unused and in its original packaging.
Return procedure for HMC252AQS24:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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