Overview
The ADN2526ACPZ is a high-performance laser diode driver designed by Analog Devices Inc. for direct modulation of packaged laser diodes. This device is particularly suited for applications requiring high-speed data transmission, such as in fiber optic communication systems. The ADN2526 is compliant with the SFP+ MSA (Multi-Source Agreement) and features active back-termination, which helps in absorbing signal reflections and ensuring excellent optical eye quality even in cases of significant mismatches at the TOSA (Transmitter Optical Subassembly) end of the output transmission lines.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | 11.3 Gbps | |
| Differential Resistance Range | 5 Ω to 50 Ω | |
| Package Type | 16-Lead LFCSP (3mm x 3mm w/ EP) | |
| Operating Voltage | 3V to 3.6V | V |
| Modulation Current | Up to 46 mA | mA |
| Operating Temperature | −40°C to +85°C | °C |
| Compliance | SFP+ MSA |
Key Features
- Active Back-Termination: Absorbs signal reflections from the TOSA end, ensuring excellent optical eye quality.
- Programmable Modulation and Bias Currents: Controlled via MSET and BSET pins, allowing for flexible average optical power and extinction ratio control schemes.
- Automatic Laser Shutdown (ALS): Enables turning on/off the bias and modulation currents using a LVTTL logic source.
- Enhanced ESD Protection: Provides robust protection against electrostatic discharge.
- Compact Package: 3 mm x 3 mm LFCSP package, ideal for compact modules.
Applications
The ADN2526ACPZ is primarily used in high-speed fiber optic communication systems, including:
- Fiber optic transceivers (e.g., SFP+, QSFP+)
- Optical interconnects
- High-speed data transmission systems
- Telecommunication equipment
- Datacenter infrastructure
Q & A
- What is the data rate supported by the ADN2526ACPZ?
The ADN2526ACPZ supports a data rate of up to 11.3 Gbps.
- What is the differential resistance range for the laser diodes supported by the ADN2526ACPZ?
The device supports laser diodes with a differential resistance ranging from 5 Ω to 50 Ω.
- What type of package does the ADN2526ACPZ come in?
The ADN2526ACPZ is available in a 16-Lead LFCSP (3mm x 3mm w/ EP) package.
- What is the operating voltage range for the ADN2526ACPZ?
The operating voltage range is from 3V to 3.6V.
- How is the modulation current controlled in the ADN2526ACPZ?
The modulation current is controlled via the MSET pin using control voltages.
- What is the purpose of the active back-termination in the ADN2526ACPZ?
The active back-termination absorbs signal reflections from the TOSA end, ensuring excellent optical eye quality.
- Does the ADN2526ACPZ support automatic laser shutdown?
Yes, the device features automatic laser shutdown (ALS) controlled by a LVTTL logic source.
- What is the operating temperature range for the ADN2526ACPZ?
The operating temperature range is from −40°C to +85°C.
- Is the ADN2526ACPZ compliant with any industry standards?
Yes, it is compliant with the SFP+ MSA.
- What kind of ESD protection does the ADN2526ACPZ offer?
The device provides enhanced ESD protection.
