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Analog Devices Inc. HMC253AQS24E
- Part No.:
- HMC253AQS24E
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
HMC253AQS24E.pdf
- Description:
- IC RF SWITCH SP8T 2.5GHZ 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,225
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Product details
Overview
HMC253AQS24E from Analog Devices is a GaAs MMIC SP8T non-reflective switch operating from DC to 2.5 GHz, featuring 1.1 dB typical insertion loss at 2 GHz, integrated 3:8 TTL decoder, and single +5 V supply operation. It serves as an RF signal path selector in broadband CATV/DBS and cellular/PCS front-end modules.
For engineers reviewing the HMC253AQS24E datasheet, HMC253AQS24E pinout, HMC253AQS24E application, or HMC253AQS24E equivalent, key selection criteria include its non-reflective architecture, 24-lead QSOP package, TTL/CMOS-compatible control interface, and guaranteed isolation >30 dB up to 2.0 GHz.
Technical Context
The HMC253AQS24E implements a monolithic GaAs-based SP8T switch with internal bias network and integrated 3:8 decoder logic, eliminating external decoding components. Its non-reflective topology terminates all off-state ports with 50 Ω, ensuring stable impedance across DC–2.5 GHz.
Control is implemented via three TTL/CMOS-compatible inputs (A, B, C) selecting one of eight RF paths (RF1–RF8) to the common port (RFC), with rise/fall times under 20 ns and switching delays under 90 ns. DC blocking capacitors are required at all RF ports per design specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 2.5 GHz - supports full-band CATV, CDMA, and PCS signal routing without band switching. |
| Insertion Loss (2 GHz) | 1.1 dB typical - enables low-loss signal distribution in multi-antenna or multi-channel RF systems. |
| Isolation (2 GHz) | 35 dB typical - prevents crosstalk between selected and unselected RF paths in dense front-end designs. |
| Return Loss (On-State) | 20 dB typical at 2 GHz - ensures minimal reflection into source amplifiers during active path conduction. |
| Input IP3 | 46 dBm typical - supports high-linearity operation with two-tone +10 dBm inputs in receiver front-ends. |
| Switching Speed | tRISE/tFALL = 20 ns - allows fast channel reconfiguration for time-division multiplexed or agile RF architectures. |
| Supply Voltage | +5 V ±10% - simplifies power delivery using standard LDOs without negative or dual supplies. |
Pinout & Package
Package: 24-lead QSOP (RoHS-compliant, matte tin plating, MSL1, max reflow 260 °C). Body material: low-stress injection-molded plastic silica/silicon impregnated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | RF1–RF8 Output Ports | Single-ended 50 Ω RF outputs; require DC blocking capacitors per datasheet note. |
| 9 | RFC Common Port | RF input/common port; bidirectional operation supported with proper matching. |
| 10, 11, 12 | A, B, C Control Inputs | TTL/CMOS-compatible digital select lines; logic high = +2.0 to +5 V, low = 0 to +0.8 V. |
| 13 | Vdd | +5 V bias supply; draws 4.5 mA typical, 7.5 mA max at +25°C. |
| 14–24 | GND (Paddle & Leads) | Thermal and RF ground; all ground leads must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Non-reflective SP8T architecture | Terminates all off-state RF ports with 50 Ω, maintaining system impedance stability during switching. |
| Integrated 3:8 TTL decoder | Reduces control interface to only 3 logic lines and eliminates external decoding ICs or discrete gates. |
| DC–2.5 GHz bandwidth | Covers CATV (50–1000 MHz), CDMA (824–894 MHz), and PCS (1850–1990 MHz) bands in one device. |
| Single +5 V supply | Eliminates need for negative or high-voltage bias rails, reducing BOM count and layout complexity. |
| 24-lead QSOP RoHS package | Enables surface-mount assembly with industry-standard reflow profile (MSL1, 260 °C peak). |
Applications
| CATV/DBS Signal Routing | CDMA Base Station Front-End |
|---|---|
|
Use Scenario: Selecting among multiple satellite LNB outputs or cable signal sources before downconversion. IC Role / Device Role / Timing Role: SP8T RF switch routing broadband IF signals (950–2150 MHz) with minimal amplitude ripple. Use Value: 1.4 dB max insertion loss at 2.5 GHz preserves SNR across full DBS band; non-reflective design avoids LO pulling in tuner stages. |
Use Scenario: Antenna diversity switching in CDMA base station transceivers handling 824–894 MHz uplink/downlink paths. IC Role / Device Role / Timing Role: High-isolation RF path selector enabling rapid antenna reconfiguration without signal leakage. Use Value: 33 dB isolation at 2.5 GHz suppresses inter-path coupling; 20 ns switching speed supports dynamic TDD timing. |
| Cellular/PCS Multi-Band Handset | Test Equipment Signal Path Switching |
|
Use Scenario: Consolidating multiple SPDT/SP4T switches into a single SP8T for LTE/5G sub-6 GHz band aggregation. IC Role / Device Role / Timing Role: Wideband RF switch supporting simultaneous operation across Bands 2, 4, 5, 12, 13, 25, 41, and 71. Use Value: Replaces up to four discrete SP4T switches; 46 dBm IP3 maintains linearity with concurrent multi-carrier transmission. |
Use Scenario: Automated RF path selection in vector network analyzers or signal generators requiring calibrated multi-port test setups. IC Role / Device Role / Timing Role: Precision-controlled SP8T switch enabling repeatable, low-drift signal routing between DUT and measurement instruments. Use Value: 20 dB return loss on-state ensures minimal mismatch error; 90 ns tON/tOFF enables synchronized switching with instrument trigger signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SP8T RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC253AQS24 | Same die, Sn/Pb lead finish, MSL1 rating with 235 °C max reflow temperature. | Not RoHS-compliant; restricted for new designs targeting EU/China environmental compliance. | Select HMC253AQS24E for RoHS-compliant production; use HMC253AQS24 only for legacy repair or non-regulated markets. |
| HMC547LP3E | SPDT GaAs switch, 0.01–6.0 GHz, 0.8 dB IL @ 2 GHz, no integrated decoder, requires external logic. | Higher frequency range but limited to 2:1 switching; lacks SP8T integration and non-reflective termination. | Choose HMC547LP3E only when >2.5 GHz operation is required and external decoding is acceptable. |
Compared with HMC253AQS24 and HMC547LP3E, the HMC253AQS24E uniquely combines SP8T functionality, integrated TTL decoding, RoHS compliance, and non-reflective architecture in a single 24-lead QSOP-enabling compact, high-integration RF front-ends without sacrificing broadband performance.
Availability
HMC253AQS24E is available at Aetrix Electronics and suitable for CATV infrastructure, cellular base station development, and RF test equipment requiring stable component supply, RoHS compliance, and consistent SP8T switching performance from DC to 2.5 GHz.
Supply support for HMC253AQS24E 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 aerospace markets since 1965.
The HMC253AQS24E belongs to Analog Devices' Hittite Microwave GaAs MMIC switch product line, designed specifically for broadband, high-isolation, low-loss RF signal routing in infrastructure and test equipment where integration, reliability, and wideband performance are critical.
FAQ
What is the maximum operating temperature for the HMC253AQS24E?
The HMC253AQS24E is rated for continuous operation from –40 °C to +85 °C ambient temperature. Its channel temperature limit is 150 °C, and thermal resistance from channel to package ground paddle is 183 °C/W for the through path. Derating is required above +85 °C ambient; full specifications apply only within the stated operating range.
Does the HMC253AQS24E require external DC blocking capacitors?
Yes, the HMC253AQS24E requires external DC blocking capacitors at RFC and all RF1–RF8 ports, as explicitly stated in the Absolute Maximum Ratings section. This is mandatory to prevent bias feed-through and ensure proper RF port termination, especially given its non-reflective architecture and internal bias network.
What is the control logic voltage compatibility of the HMC253AQS24E?
The HMC253AQS24E accepts TTL/CMOS-compatible control inputs: logic low is 0 to +0.8 Vdc (<1 µA), logic high is +2.0 to +5 Vdc (60 µA typical). It operates with Vdd = +5 V ±10%, and control voltage range extends to –0.5 V to Vdd +1 Vdc, supporting robust interfacing with standard FPGA and microcontroller GPIOs.
How does the HMC253AQS24E differ from the HMC253AQS24?
The HMC253AQS24E differs from the HMC253AQS24 solely in packaging: it uses 100% matte tin plating (RoHS-compliant) and supports a higher peak reflow temperature of 260 °C (MSL1), whereas the HMC253AQS24 uses Sn/Pb plating and is rated for 235 °C max reflow. Electrically and functionally, both share identical die, pinout, and specifications.
Can the HMC253AQS24E be used in transmit paths with +23 dBm input power?
Yes - the HMC253AQS24E supports +23 dBm input power in the 0.5–2.5 GHz range for terminated paths, and +25 dBm for through paths. At +23 dBm, compression remains below 1 dB, and IP3 stays at 46 dBm typical, making it suitable for moderate-power transmit signal routing in base station and repeater applications.
HMC253AQS24E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Strip
- Product Status:
- Active
- RF Type:
- CDMA
- Topology:
- Absorptive
- Circuit:
- SP8T
- Frequency Range:
- 0Hz ~ 2.5GHz
- Isolation:
- 40dB
- Insertion Loss:
- 1dB
- Test Frequency:
- 1GHz
- P1dB:
- 23dBm
- 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
HMC253AQS24E FAQ
1.How can I place an order for HMC253AQS24E through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC253AQS24E 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 HMC253AQS24E reliable?
The price and inventory of HMC253AQS24E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC253AQS24E is usually 5 days.
3.What payment methods are accepted for HMC253AQS24E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC253AQS24E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC253AQS24E?
HMC253AQS24E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC253AQS24E 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 HMC253AQS24E?
For technical support, including HMC253AQS24E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC253AQS24E requirements.
6.How does Aetrix verify that HMC253AQS24E is sourced from the original manufacturer or authorized distributors?
All HMC253AQS24E 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 HMC253AQS24E meets industry standards.
7.What is the process for return or replacement of HMC253AQS24E?
All HMC253AQS24E units undergo pre-shipment inspection (PSI). If there is an issue with HMC253AQS24E, 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 HMC253AQS24E part is unused and in its original packaging.
Return procedure for HMC253AQS24E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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