Analog Devices Inc. HMC725LC3CTR-R5
- Part No.:
- HMC725LC3CTR-R5
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-LFQFN Exposed Pad
- Datasheet:
-
HMC725LC3CTR-R5.pdf
- Description:
- IC GATE XOR/XNOR 13DBPS 16QFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
HMC725LC3CTR-R5 from Analog Devices (formerly Hittite Microwave) is a high-speed CML XOR/XNOR logic gate IC designed for ultra-fast serial data routing and clock-domain comparison in RF and digital test systems. It supports 14 Gbps data rates and 14 GHz clock frequencies, features 19/18 ps differential rise/fall times, operates from a single -3.3 V supply, and delivers 1100 mVp-p differential output amplitude - enabling direct interface with 50 Ω ground-terminated CML receivers in 16G Fibre Channel and ATE applications.
For engineers reviewing the HMC725LC3CTR-R5 datasheet, HMC725LC3CTR-R5 pinout, HMC725LC3CTR-R5 application, or HMC725LC3CTR-R5 equivalent, key selection criteria include verified 14 GHz operation margin, on-chip 50 Ω input termination, deterministic jitter ≤2 ps (p-p), propagation delay of 105 ps, and compatibility with AC/DC-coupled CML signal chains in broadband test instrumentation and high-speed logic systems.
Technical Context
The HMC725LC3CTR-R5 implements a fully differential CML-based XOR/XNOR function with internally terminated 50 Ω inputs referenced to Vee, supporting both differential and single-ended input drive. Its outputs are source-terminated to 50 Ω and deliver rail-to-rail swing compatible with standard CML logic families.
It operates exclusively from a single negative supply (-3.3 V), exhibits 27 dB small-signal gain, maintains ≥10 dB input/output return loss below 14 GHz, and achieves 0.2 psrms random jitter - confirming suitability for low-jitter serial data regeneration and clock-phase comparison in high-fidelity measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 14 Gbps - supports full-rate operation in 16G Fibre Channel and PCIe Gen4 serial links. |
| Propagation Delay | 105 ps - enables precise timing alignment in multi-channel logic comparators and bit-error testers. |
| Rise/Fall Time | 19 / 18 ps (20–80%) - preserves signal integrity at 14 GHz fundamental frequency with minimal edge dispersion. |
| Output Amplitude | 1100 mVp-p differential - drives 50 Ω loads directly without external termination or level-shifting. |
| Supply Voltage | -3.3 V (±0.3 V) - requires only one negative rail; compatible with standard CML power distribution networks. |
| Deterministic Jitter | 2 ps (p-p) - meets stringent jitter budget requirements for BERT and high-speed serial compliance testing. |
| Input Return Loss | ≥10 dB up to 14 GHz - ensures minimal signal reflection in broadband RF ATE interconnects. |
Pinout & Package
Package: 16-lead ceramic 3×3 mm SMT (alumina body, gold-over-nickel plating, MSL3, exposed paddle soldered to PCB ground).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 8, 9, 12, 14 | GND | RF/DC ground connections - must be soldered to low-inductance ground plane per RF layout best practices. |
| 2, 3 | AN, AP | Differential CML input pair - internally terminated to 50 Ω; accepts AC/DC-coupled signals from -1.5 V to +0.5 V. |
| 6, 7 | BN, BP | Differential CML input pair - identical termination and voltage range as AN/AP; enables dual-input XOR/XNOR logic. |
| 10, 11 | DN, DP | Differential CML output pair - source-terminated to 50 Ω; delivers 1100 mVp-p swing into 50 Ω load. |
| 13, 16 | Vee | Negative supply rail - connects to -3.3 V; decoupling required per evaluation board layout (C1 = 4.7 µF tantalum). |
| 15 | N/C | No internal connection - may be grounded without performance impact but not required. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 50 Ω input termination | Eliminates external resistors and layout sensitivity for impedance-matched CML interfacing across 14 GHz bandwidth. |
| 19/18 ps differential edge speed | Preserves eye opening in 14 Gbps PRBS signals, reducing intersymbol interference in serial data paths. |
| Single -3.3 V supply operation | Simplifies power delivery architecture versus dual-supply CML devices; reduces BOM count and layout complexity. |
| 105 ps propagation delay | Enables sub-100 ps timing resolution in logic analyzers and high-speed comparator circuits. |
| ≤2 ps (p-p) deterministic jitter | Meets jitter tolerance thresholds for 16G Fibre Channel receiver testing and serial link margin analysis. |
Applications
| 16G Fibre Channel Test Systems | RF Automatic Test Equipment (ATE) |
|---|---|
|
Use Scenario: Bit-error ratio testing of 16G FC transceivers using PRBS pattern generation and error detection. IC Role / Device Role / Timing Role: XOR gate compares incoming serial data against reference pattern to generate error pulses. Use Value: 105 ps propagation delay and ≤2 ps deterministic jitter ensure accurate, low-latency error detection at full 14 Gbps line rate. |
Use Scenario: High-frequency stimulus/response path conditioning in RF ATE channel cards. IC Role / Device Role / Timing Role: XNOR gate performs phase-aligned comparison of RF-modulated clock and data streams. Use Value: 14 GHz bandwidth and ≥10 dB input return loss maintain signal fidelity across Ka-band test frequencies. |
| Broadband Signal Integrity Analysis | High-Speed Digital Logic Prototyping |
|
Use Scenario: Eye diagram capture and jitter decomposition in serial data compliance labs. IC Role / Device Role / Timing Role: XOR gate regenerates clean clock/data edges from degraded input signals for oscilloscope triggering. Use Value: 1100 mVp-p differential output amplitude drives 50 Ω scope inputs directly without amplification or attenuation. |
Use Scenario: Clock domain crossing verification in FPGA-based protocol emulators running at >10 GHz. IC Role / Device Role / Timing Role: Dual-input XOR/XNOR logic block validates synchronous/asynchronous handshake timing margins. Use Value: Differential CML I/O supports both AC- and DC-coupled interfaces, simplifying integration with FPGA transceiver banks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed logic gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC855LC3CTR-R5 | Same 3×3 mm package and -3.3 V supply, but optimized as dual D-type flip-flop (not XOR/XNOR); 13 Gbps max data rate. | Used for clocked storage rather than combinational logic; lacks truth-table flexibility of HMC725LC3CTR-R5. | Select HMC855LC3CTR-R5 only when sequential logic functionality is required instead of Boolean gate operation. |
| ADCLK948BCPZ-R7 | 8-output LVDS fanout buffer with 14 GHz bandwidth; no logic function; 3.3 V supply; different pinout and termination scheme. | Designed for clock distribution-not data path logic-so cannot perform XOR/XNOR comparison or error detection. | Choose ADCLK948BCPZ-R7 when distributing low-jitter clocks to multiple receivers, not when implementing logic decisions on data streams. |
Compared with HMC855LC3CTR-R5 and ADCLK948BCPZ-R7, the HMC725LC3CTR-R5 uniquely combines true XOR/XNOR combinational logic, 14 Gbps throughput, and on-die 50 Ω termination in a compact ceramic package-making it irreplaceable for high-speed serial bit comparison, BERT error generation, and RF ATE signal correlation tasks.
Availability
HMC725LC3CTR-R5 is available at Aetrix Electronics and suitable for 16G Fibre Channel test systems, RF ATE channel modules, and broadband signal integrity analyzers requiring stable component supply, guaranteed long-term availability, and traceable sourcing for production deployment.
Supply support for HMC725LC3CTR-R5 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 precision instrumentation, communications, and defense markets with rigorously characterized components.
The HMC725LC3CTR-R5 belongs to Analog Devices' legacy Hittite high-speed logic product line, engineered specifically for microwave and millimeter-wave test equipment, serial data infrastructure, and low-jitter digital signal processing applications.
FAQ
What logic functions does the HMC725LC3CTR-R5 implement?
The HMC725LC3CTR-R5 implements both XOR and XNOR logic functions simultaneously via its dual differential input pairs (AN/AP and BN/BP) and complementary differential outputs (DN/DP). Its truth table confirms operation as a 2-input exclusive-OR gate with inverted output available on the same device, eliminating need for external inversion in high-speed comparator designs.
Does the HMC725LC3CTR-R5 require external termination resistors?
No. The HMC725LC3CTR-R5 integrates 50 Ω on-chip termination for all differential inputs, referenced to the positive supply (Vcc = GND), and source-terminates its differential outputs to 50 Ω. This eliminates external resistors and minimizes layout parasitics critical for maintaining signal integrity above 10 GHz.
What is the operating temperature range for the HMC725LC3CTR-R5?
The HMC725LC3CTR-R5 is specified for continuous operation from -40 °C to +85 °C ambient temperature. Its thermal resistance (Rth j-p) is 59 °C/W, and maximum junction temperature is 125 °C - ensuring reliable performance in thermally constrained RF ATE chassis and high-density test instrumentation.
Can the HMC725LC3CTR-R5 accept single-ended inputs?
Yes. Although optimized for differential CML signaling, the HMC725LC3CTR-R5 supports single-ended operation by AC- or DC-coupling one side of each input pair (e.g., AP to signal, AN to fixed bias) while maintaining valid logic thresholds within its -1.5 V to +0.5 V input voltage range and 0.1–2.0 Vp-p differential input window.
Is the HMC725LC3CTR-R5 RoHS-compliant and MSL-rated?
Yes. The HMC725LC3CTR-R5 uses a RoHS-compliant 3×3 mm ceramic SMT package with gold-over-nickel lead finish and is rated MSL3 (Moisture Sensitivity Level 3), with a maximum peak reflow temperature of 260 °C - meeting IPC/JEDEC J-STD-020D requirements for surface-mount assembly.
HMC725LC3CTR-R5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-LFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- XOR/XNOR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 4
- Schmitt Trigger Input:
- No
- Output Type:
- Differential, Single-Ended
- Current - Output High, Low:
- -
- Voltage - Supply:
- -3V ~ -3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SMT (3x3)
HMC725LC3CTR-R5 FAQ
1.How can I place an order for HMC725LC3CTR-R5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC725LC3CTR-R5 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 HMC725LC3CTR-R5 reliable?
The price and inventory of HMC725LC3CTR-R5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC725LC3CTR-R5 is usually 5 days.
3.What payment methods are accepted for HMC725LC3CTR-R5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC725LC3CTR-R5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC725LC3CTR-R5?
HMC725LC3CTR-R5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC725LC3CTR-R5 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 HMC725LC3CTR-R5?
For technical support, including HMC725LC3CTR-R5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC725LC3CTR-R5 requirements.
6.How does Aetrix verify that HMC725LC3CTR-R5 is sourced from the original manufacturer or authorized distributors?
All HMC725LC3CTR-R5 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 HMC725LC3CTR-R5 meets industry standards.
7.What is the process for return or replacement of HMC725LC3CTR-R5?
All HMC725LC3CTR-R5 units undergo pre-shipment inspection (PSI). If there is an issue with HMC725LC3CTR-R5, 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 HMC725LC3CTR-R5 part is unused and in its original packaging.
Return procedure for HMC725LC3CTR-R5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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