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Analog Devices Inc. HMC595ATR
- Part No.:
- HMC595ATR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- SOT-23-6
- Datasheet:
-
HMC595ATR.pdf
- Description:
- IC RF SWITCH SPDT 3GHZ SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,252
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Product details
Overview
HMC595ATR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SPDT transmit/receive switch optimized for DC–3 GHz RF front-ends. It delivers 0.3 dB typical insertion loss, +63 dBm input IP3 at +8 V control, and 3 W RF power handling in a 6-lead SOT26 package-ideal for cellular/3G infrastructure and WiMAX transceivers.
For engineers reviewing the HMC595ATR datasheet, HMC595ATR pinout, HMC595ATR application, or HMC595ATR equivalent, key selection criteria include its positive-control CMOS/TTL-compatible logic interface, reflective-off-state architecture (RF1/RF2 shorted when inactive), and bias-dependent P1dB/IP3 trade-offs across 3–8 V control range.
Technical Context
The HMC595ATR implements a monolithic GaAs pHEMT-based SPDT T/R switch with reflective termination on unselected paths (RF1 and RF2 present DC-coupled 50 Ω ports but become reflective shorts when off). Control inputs A and B accept 0/+3 V to 0/+10 V logic levels with ≤100 µA drive current.
Its RF path operates from DC to 3 GHz without external matching; DC blocking capacitors are mandatory at RFC, RF1, and RF2. Thermal resistance is 109 °C/W, and absolute max channel temperature is 150 °C-enabling robust operation in base station PA driver stages and handheld radio front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 3 GHz - supports full-band operation without re-tuning in multi-standard radios (e.g., LTE/WiMAX/WiBro). |
| Insertion Loss | 0.3 dB typ. @ DC–2 GHz - minimizes signal attenuation in high-gain receive chains and low-loss transmit paths. |
| Isolation | 30 dB min. @ DC–1 GHz - prevents transmit leakage into sensitive receiver paths during TDD operation. |
| Input IP3 | +63 dBm @ +8 V, 900 MHz - enables high-linearity operation in crowded spectral environments with strong interferers. |
| Power Handling | 39 dBm (8 W) peak input power @ 0.5–2.5 GHz - supports Class AB PA output coupling without compression or damage. |
| Control Logic | Positive CMOS/TTL compatible (0/+3 V to 0/+10 V) - eliminates level-shifting circuitry in FPGA- or ASIC-driven RF subsystems. |
| Switching Speed | 50 ns tRISE/tFALL - meets fast TDD frame timing requirements in LTE and 5G NR FDD/TDD systems. |
Pinout & Package
Package: 6-lead SOT26 (low-stress injection-molded plastic, MSL1, Sn/Pb lead finish). Dimensions per Hittite drawing: 2.9 mm × 2.8 mm × 1.3 mm, with exposed thermal pad requiring solder connection to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5 | RF2 / RF1 / RFC | DC-coupled 50 Ω RF ports; all require external DC blocking capacitors; RFC is common port, RF1/RF2 are antenna/PA/LNA paths. |
| 2 | GND | RF/DC ground reference; must be soldered directly to PCB ground plane for impedance control and thermal dissipation. |
| 4 | B | Logic control input; high = RFC→RF1 path enabled, low = RFC→RF2 path enabled per truth table. |
| 6 | A | Logic control input; complements B to select active RF path; compatible with HC/HCT logic families. |
Key Features
| Feature | Design Value |
|---|---|
| Reflective Off-State Architecture | RF1 and RF2 present DC-coupled 50 Ω ports but become reflective shorts when inactive-reducing need for external termination resistors and saving board space. |
| Bias-Scalable Linearity | P1dB increases from 29 dBm (@ 3 V) to 37 dBm (@ 8 V); IP3 rises from +50 dBm to +63 dBm-enabling system-level trade-off between supply voltage and distortion performance. |
| ESD Robustness | Class 1A HBM rating (≥250 V) - withstands handling in production environments without special ESD precautions beyond standard protocols. |
| Thermal Performance | 109 °C/W junction-to-case thermal resistance with direct ground-pad soldering-supports continuous operation at +85 °C ambient in compact RF modules. |
Applications
| Cellular Base Station Transceivers | WiMAX/WiBro Customer Premises Equipment |
|---|---|
Use Scenario: Dual-path TDD front-end switching between PA output and LNA input in macrocell BTS with 2×2 MIMO. IC Role / Device Role / Timing Role: SPDT T/R switch routing RF between shared antenna and transmit/receive chains with <50 ns switching. Use Value: 0.3 dB insertion loss preserves PA efficiency and LNA noise figure; +63 dBm IP3 prevents intermodulation in dense urban deployments. | Use Scenario: Outdoor CPE unit supporting IEEE 802.16d/e with adaptive beamforming and dynamic TDD slot allocation. IC Role / Device Role / Timing Role: High-isolation RF path selector enabling simultaneous Tx/Rx calibration and fast band-switching. Use Value: 30 dB isolation at sub-1 GHz blocks Tx self-interference during Rx calibration; 3 W power handling accommodates high-PAPR OFDMA signals. |
| Automotive Telematics Modems | Portable Test & Measurement Instruments |
Use Scenario: Multi-band LTE/V2X modem in automotive infotainment head unit with GNSS coexistence. IC Role / Device Role / Timing Role: Low-loss RF switch isolating GNSS L1/L5 receivers from cellular Tx bands during concurrent operation. Use Value: Reflective-off design avoids DC path disruption to GNSS LNA bias; -40 to +85 °C operating range ensures reliability under hood conditions. | Use Scenario: Portable spectrum analyzer front-end with programmable input path selection for calibrated signal routing. IC Role / Device Role / Timing Role: Precision RF switch enabling traceable signal path calibration across multiple frequency bands and attenuation settings. Use Value: Stable 0.3 dB insertion loss and <0.1 dB variation over temperature simplifies factory calibration; SOT26 footprint eases automated test fixture integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT T/R switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC595AE | RoHS-compliant version with 100% matte Sn lead finish and 260 °C max reflow; identical electrical specs and pinout. | No functional difference; selected where lead-free assembly is mandated by regulatory or OEM requirements. | Direct drop-in replacement for HMC595ATR in RoHS-compliant manufacturing lines. |
| Qorvo QM11036 | Si-based SPDT switch; 0.4 dB IL @ 2.5 GHz, +55 dBm IP3, 1.5 W P1dB; 6-pin DFN package (2.0 × 2.0 mm). | Lower power handling and linearity; suited for battery-powered handhelds rather than infrastructure equipment. | Consider only for cost-sensitive, lower-power portable designs where 3 W capability is not required. |
Compared with HMC595AE, the HMC595ATR offers identical RF performance but requires Sn/Pb reflow profile; versus QM11036, it delivers +8 dB higher IP3 and >2× power handling-making it essential for high-dynamic-range infrastructure applications.
Availability
HMC595ATR is available at Aetrix Electronics and suitable for cellular infrastructure, WiMAX CPE, and automotive telematics requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for HMC595ATR 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-including GaAs MMIC switches, LNAs, and synthesizers-into broad-spectrum signal chain solutions.
The HMC595ATR belongs to Hittite's legacy GaAs SPDT T/R switch family, engineered specifically for high-linearity, high-power RF front-ends in wireless infrastructure and broadband communications equipment.
FAQ
What is the maximum RF input power the HMC595ATR can handle without damage?
The HMC595ATR has an absolute maximum RF input power rating of 39 dBm (8 W) at 0.5–2.5 GHz when biased at +8 V. This rating assumes proper DC blocking at all RF ports and thermal management via soldered ground leads. Exceeding this limit risks permanent degradation of the GaAs pHEMT devices inside the HMC595ATR.
Does the HMC595ATR require external DC blocking capacitors, and why?
Yes, the HMC595ATR requires external DC blocking capacitors at RFC, RF1, and RF2 because all three RF ports are DC-coupled and internally matched to 50 Ω. Without blocking, DC bias from preceding or following stages would disrupt the internal GaAs device operating points and potentially cause latch-up or damage. The capacitor value determines the lowest usable frequency.
How does control voltage affect linearity performance of the HMC595ATR?
Increasing control voltage from +3 V to +8 V raises both P1dB and IP3: P1dB improves from 29 dBm to 37 dBm, and IP3 rises from +50 dBm to +63 dBm. This occurs because higher gate bias enhances pHEMT transconductance and reduces channel resistance, directly improving large-signal handling-critical for maintaining fidelity in HMC595ATR-based transmitter stages.
Can the HMC595ATR be used in systems requiring −40 °C to +85 °C operation?
Yes, the HMC595ATR is fully specified and qualified for operation across −40 °C to +85 °C ambient temperature. Its GaAs MMIC process and SOT26 packaging ensure stable insertion loss, isolation, and switching speed across this range-validated in cellular base station and automotive telematics applications where the HMC595ATR serves as the primary T/R switch.
What is the significance of the "reflective off-state" behavior in the HMC595ATR?
The HMC595ATR presents a reflective short (not 50 Ω termination) at RF1 and RF2 when those paths are inactive. This eliminates the need for external 50 Ω shunt resistors, reducing component count and board area. However, it requires careful system-level impedance management-especially in cascaded architectures-to avoid standing waves that could degrade adjacent channel rejection or PA stability in the HMC595ATR's signal path.
HMC595ATR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- WiMax, WLAN
- Topology:
- -
- Circuit:
- SPDT
- Frequency Range:
- 0Hz ~ 3GHz
- Isolation:
- 18dB
- Insertion Loss:
- 0.5dB
- Test Frequency:
- 3GHz
- P1dB:
- 39dBm
- IIP3:
- 63dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- 5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
HMC595ATR FAQ
1.How can I place an order for HMC595ATR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC595ATR 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 HMC595ATR reliable?
The price and inventory of HMC595ATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC595ATR is usually 5 days.
3.What payment methods are accepted for HMC595ATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC595ATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC595ATR?
HMC595ATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC595ATR 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 HMC595ATR?
For technical support, including HMC595ATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC595ATR requirements.
6.How does Aetrix verify that HMC595ATR is sourced from the original manufacturer or authorized distributors?
All HMC595ATR 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 HMC595ATR meets industry standards.
7.What is the process for return or replacement of HMC595ATR?
All HMC595ATR units undergo pre-shipment inspection (PSI). If there is an issue with HMC595ATR, 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 HMC595ATR part is unused and in its original packaging.
Return procedure for HMC595ATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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