Overview
The AD8018ARZ-REEL, produced by Analog Devices Inc., is a high-performance, dual current feedback amplifier designed specifically for xDSL (Digital Subscriber Line) applications. This component is optimized for high-output current and low distortion, making it ideal for single-supply xDSL modems where achieving maximum reach is crucial. The AD8018ARZ-REEL operates over a wide supply voltage range of 3.3 V to 8 V and is capable of delivering 400 mA of output current while maintaining low distortion levels.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 8 | V |
| Output Current | - | 400 | - | mA |
| Bandwidth (–3 dB) | - | 130 | - | MHz |
| Slew Rate | - | 300 | - | V/μs |
| Voltage Noise Density | - | 4.5 | - | nV/√Hz @ 100 kHz |
| Out-of-Band SFDR | -82 | - | - | dBc, 144 kHz to 500 kHz |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | 8-Lead SOIC, 14-Lead TSSOP | - | - |
Key Features
- High output current capability: Delivers up to 400 mA into a differential load of 10 Ω.
- Low distortion: Maintains low single-tone distortion of –86 dBc and out-of-band SFDR of –82 dBc.
- Rail-to-rail output voltage: Swings to within 0.5 V of either power supply rail.
- Low power consumption: Operates with a low supply current of 9 mA per amplifier.
- Flexible standby and shutdown modes: Controlled by two digital logic bits (PWDN1 and PWDN0).
- High speed: Features a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- Compact packaging: Available in 8-lead SOIC and 14-lead TSSOP packages.
Applications
- xDSL modems: Ideal for single-supply xDSL modems requiring high output current and low distortion.
- USB, PCI, PCMCIA cards: Suitable for various interface cards due to its high-speed and low-distortion characteristics.
- Consumer DSL modems: Enhances signal integrity for high-speed data transfer in consumer DSL modems.
- Telecommunications and network equipment: Used in broadband access and customer premises equipment (CPE).
Q & A
- What is the primary application of the AD8018ARZ-REEL?
The AD8018ARZ-REEL is primarily designed for xDSL (Digital Subscriber Line) applications, particularly in single-supply xDSL modems.
- What is the output current capability of the AD8018ARZ-REEL?
The AD8018ARZ-REEL can deliver up to 400 mA of output current into a differential load of 10 Ω.
- What is the operating temperature range of the AD8018ARZ-REEL?
The operating temperature range is from –40°C to 85°C.
- What are the available package types for the AD8018ARZ-REEL?
The component is available in 8-lead SOIC and 14-lead TSSOP packages.
- How does the AD8018ARZ-REEL manage power consumption?
The AD8018ARZ-REEL operates with a low supply current of 9 mA per amplifier and features flexible standby and shutdown modes.
- What is the bandwidth and slew rate of the AD8018ARZ-REEL?
The component has a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- What are the key distortion specifications of the AD8018ARZ-REEL?
The AD8018ARZ-REEL maintains low single-tone distortion of –86 dBc and out-of-band SFDR of –82 dBc.
- Can the AD8018ARZ-REEL be used in other applications besides xDSL modems?
Yes, it can be used in USB, PCI, PCMCIA cards, and other telecommunications and network equipment due to its high-speed and low-distortion characteristics.
- How does the AD8018ARZ-REEL handle standby and shutdown modes?
The component features two digital logic bits (PWDN1 and PWDN0) to control standby and shutdown modes, allowing for full power, standby (outputs low impedance), and shutdown (outputs high impedance) operations.
- What is the voltage noise density of the AD8018ARZ-REEL?
The voltage noise density is 4.5 nV/√Hz at 100 kHz.
