Analog Devices Inc. 119197-HMC653LP2E
- Part No.:
- 119197-HMC653LP2E
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
119197-HMC653LP2E.pdf
- Description:
- BOARD EVAL HMC653LP2E
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
HMC653LP2E from Analog Devices (formerly Hittite Microwave) is a 3 dB wideband fixed attenuator for RF/microwave signal conditioning in 50 Ω systems. It delivers ±0.5 dB attenuation tolerance over DC–25 GHz, maintains ≥7.0 dB min return loss, handles +25 dBm CW input power, and operates from –40°C to +85°C - ideal for precision test instrumentation and fiber-optic transceiver bias networks.
For engineers reviewing the HMC653LP2E datasheet, HMC653LP2E pinout, HMC653LP2E application, or HMC653LP2E equivalent, key selection criteria include broadband flatness (±0.5 dB), thermal stability (0.0006 dB/°C), MSL1 reflow compatibility, and verified 2×2 mm SMT grounding requirements for RF integrity.
Technical Context
The HMC653LP2E is a passive, DC-coupled, 50 Ω matched attenuator with no active circuitry or biasing. Its monolithic construction uses low-stress molded plastic packaging and copper alloy leadframe to preserve impedance continuity across 25 GHz.
All six terminals are either RF I/O (pins 2 & 5) or ground (pins 1, 3, 4, 6); the exposed paddle must be soldered to PCB RF ground per Hittite Application Note. No internal matching networks or compensation circuits are present - attenuation is purely resistive and frequency-invariant within spec.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Attenuation | 3 dB ±0.5 dB over full DC–25 GHz band - ensures predictable signal reduction without frequency-dependent deviation. |
| Frequency Range | DC to 25 GHz - supports baseband through Ka-band applications without roll-off or resonance artifacts. |
| Return Loss (min) | 7.0 dB - guarantees ≤1.5 VSWR at worst-case frequency points, minimizing reflection-induced measurement error. |
| Power Handling | +25 dBm CW - enables use in medium-power RF stages including driver amplifier output conditioning. |
| Temp. Coefficient | 0.0006 dB/°C - limits attenuation drift to <0.03 dB over full operating range (–40°C to +85°C). |
| Package Size | 2×2 mm footprint, 0.85 mm height - fits high-density RF layouts while maintaining thermal and grounding integrity. |
Pinout & Package
Package: 6-lead 2×2 mm SMT with exposed ground paddle; RoHS-compliant low-stress molded plastic body; matte tin lead finish; MSL1 rated (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 4, 6 | GND | RF/DC ground connection points - all four leads plus exposed paddle must be soldered to solid ground plane for impedance control and thermal dissipation. |
| 2 | RF1 | DC-coupled 50 Ω input port - requires external DC blocking if source has non-zero DC offset. |
| 5 | RF2 | DC-coupled 50 Ω output port - same DC coupling behavior as RF1; bidirectional operation supported. |
Key Features
| Feature | Design Value |
|---|---|
| Wideband flatness | ±0.5 dB attenuation tolerance from DC to 25 GHz - eliminates need for frequency-specific calibration in broadband test setups. |
| High-power handling | +25 dBm CW rating - allows direct placement after medium-power amplifiers without derating or heat sinking. |
| Thermal stability | 0.0006 dB/°C coefficient - ensures <0.03 dB total drift across industrial temperature range, critical for lab-grade repeatability. |
| Ground-integrated package | Four dedicated GND pins + exposed paddle - provides low-inductance RF return path essential for >10 GHz signal fidelity. |
Applications
| Fiber-Optic Transceiver Bias Network | Microwave Radio IF Conditioning |
|---|---|
Use Scenario: Attenuating laser diode bias control signals to prevent overshoot and stabilize modulation depth in 10G/25G optical modules. IC Role / Device Role / Timing Role: Passive 3 dB signal reduction element placed between DAC output and laser driver input. Use Value: Maintains 50 Ω match across DC–12 GHz, ensuring clean step response and eliminating reflections that distort analog bias waveforms. |
Use Scenario: Level-setting intermediate frequency signals prior to upconversion in point-to-point microwave radios (e.g., E-band backhaul). IC Role / Device Role / Timing Role: Fixed-loss pad inserted between mixer output and filter input to optimize dynamic range and prevent compression. Use Value: Delivers flat 3 dB loss from 3–12 GHz with <0.03 dB temp drift, enabling consistent gain staging across outdoor operating temperatures. |
| Lab-Grade Vector Network Analyzer Calibration | Radar Front-End Signal Path Matching |
Use Scenario: Used as known-loss standard during VNA port extension and error correction routines in metrology labs. IC Role / Device Role / Timing Role: Precision reference attenuator mounted on calibrated evaluation board (P/N 119197) with K-connectors. Use Value: ±0.5 dB tolerance and ≥7 dB return loss ensure traceable uncertainty <0.1 dB up to 25 GHz for NIST-traceable calibrations. |
Use Scenario: Balancing amplitude between parallel receive paths in phased-array radar front-ends to maintain beamforming accuracy. IC Role / Device Role / Timing Role: Passive amplitude-matching element placed before LNA inputs to equalize channel gain variance. Use Value: Stable 3 dB insertion loss with minimal phase perturbation (<1°) preserves time-aligned signal coherence across multi-channel RF chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QAT-3W1000+ (3 dB) | 0.5 dB tolerance only up to 18 GHz; +30 dBm power rating; 0805 package (2.0×1.25 mm) | Better power handling but narrower bandwidth; less suitable for Ka-band test equipment | Prefer HMC653LP2E when DC–25 GHz flatness is mandatory; choose QAT-3W1000+ only if >+25 dBm operation dominates design priority |
| Mini-Circuits VAT-3W2+ (3 dB) | ±0.75 dB tolerance over DC–20 GHz; 0.001 dB/°C tempco; 2.5×2.0 mm package with 3 GND pads | Higher attenuation variation and lower thermal stability; larger footprint reduces layout density | Select HMC653LP2E for tighter tolerance and superior thermal performance; VAT-3W2+ acceptable only where cost sensitivity outweighs precision needs |
Compared with QAT-3W1000+ and VAT-3W2+, the HMC653LP2E uniquely combines 25 GHz bandwidth, ±0.5 dB tolerance, and 0.0006 dB/°C stability in a compact 2×2 mm ground-enhanced package - making it the preferred choice for metrology-grade and military-spec RF systems where broadband accuracy is non-negotiable.
Availability
HMC653LP2E is available at Aetrix Electronics and suitable for fiber-optic transceivers, microwave radio IF stages, and lab-grade VNA calibration requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for HMC653LP2E 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 ADI's broader signal chain solutions. Hittite was founded to advance millimeter-wave ICs for defense and instrumentation markets.
The HMC653LP2E belongs to Hittite's wideband fixed attenuator family designed specifically for DC–25 GHz applications demanding flat loss, high return loss, and robust thermal stability - targeting test & measurement, aerospace, and fiber-optic infrastructure.
FAQ
What is the maximum continuous RF input power rating for the HMC653LP2E?
The HMC653LP2E is rated for +25 dBm continuous wave (CW) input power at +25°C ambient. Absolute maximum RF input power is +26 dBm, but sustained operation above +25 dBm may exceed thermal limits and degrade attenuation accuracy or reliability. Derating is recommended above +70°C ambient per the datasheet's absolute maximum ratings table.
Does the HMC653LP2E require DC blocking capacitors in circuit?
Yes - the HMC653LP2E is DC-coupled on both RF1 and RF2 ports, meaning it passes DC voltage. If either the driving or receiving stage has non-zero DC potential, external DC blocking capacitors must be used to prevent bias disruption or damage. The device itself contains no internal DC blocking elements.
Is the HMC653LP2E pin-compatible with other members of the HMC652LP2E–HMC655LP2E family?
Yes - all four variants (HMC652LP2E, HMC653LP2E, HMC654LP2E, HMC655LP2E) share identical 6-lead 2×2 mm package outlines, pin functions, and land pattern requirements. Only the attenuation value differs; no PCB redesign is needed when swapping between them for system-level gain tuning.
What is the recommended PCB grounding strategy for the HMC653LP2E?
The HMC653LP2E requires all four GND pins (1, 3, 4, 6) plus the exposed ground paddle to be soldered directly to a solid, low-inductance RF ground plane. Per Hittite Application Note, thermal vias under the paddle and short, wide traces to ground minimize impedance discontinuities critical for >10 GHz performance.
How does the temperature coefficient affect attenuation accuracy over the full operating range?
With a typical temperature coefficient of 0.0006 dB/°C, the HMC653LP2E exhibits ≤0.03 dB total attenuation drift across its –40°C to +85°C operating range. This ensures that the ±0.5 dB initial tolerance remains fully valid under real-world thermal conditions, supporting repeatable measurements in uncontrolled environments.
119197-HMC653LP2E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Attenuator
- Frequency:
- 0Hz ~ 25GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC653LP2E
119197-HMC653LP2E FAQ
1.How can I place an order for 119197-HMC653LP2E through Aetrix?
Please submit a Request for Quotation (RFQ) for 119197-HMC653LP2E 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 119197-HMC653LP2E reliable?
The price and inventory of 119197-HMC653LP2E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 119197-HMC653LP2E is usually 5 days.
3.What payment methods are accepted for 119197-HMC653LP2E?
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Once your 119197-HMC653LP2E 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 119197-HMC653LP2E?
For technical support, including 119197-HMC653LP2E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 119197-HMC653LP2E requirements.
6.How does Aetrix verify that 119197-HMC653LP2E is sourced from the original manufacturer or authorized distributors?
All 119197-HMC653LP2E 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 119197-HMC653LP2E meets industry standards.
7.What is the process for return or replacement of 119197-HMC653LP2E?
All 119197-HMC653LP2E units undergo pre-shipment inspection (PSI). If there is an issue with 119197-HMC653LP2E, 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 119197-HMC653LP2E part is unused and in its original packaging.
Return procedure for 119197-HMC653LP2E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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