Overview
The AD8018ARU-REEL, produced by Analog Devices Inc., is a high-performance, rail-to-rail output, high-output current xDSL line driver amplifier. This component is specifically designed for use in single-supply (5 V) xDSL modems, where high-output current and low distortion are crucial for achieving maximum reach. The AD8018 features dual high-speed amplifiers that can drive low distortion signals to within 0.5 V of the power supply rail, making it ideal for telecommunications and broadband access applications.
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 |
| Single-Tone Distortion | - | -86 | - | dBc |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | 14-Lead TSSOP | - |
Key Features
- High output current capability: Each amplifier can drive 400 mA of current into a 10 Ω differential load.
- Low distortion: Achieves –86 dBc single-tone distortion and –82 dBc out-of-band SFDR.
- Rail-to-rail output voltage: Drives signals to within 0.5 V of the 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: 130 MHz bandwidth and 300 V/μs slew rate.
- Wide supply voltage range: Operates from 3.3 V to 8 V.
- Compact packaging: Available in 8-lead SOIC and 14-lead TSSOP packages.
Applications
- xDSL modems: Ideal for single-supply xDSL modems where high output current and low distortion are essential.
- Telecommunications: Suitable for network equipment and broadband access.
- Customer Premises Equipment (CPE): Used in consumer DSL modems and other CPE devices.
- USB, PCI, PCMCIA cards: Applicable in various interface cards requiring high-speed data transfer.
- Twisted pair line drivers: Effective in driving signals over twisted pair lines.
Q & A
- What is the primary application of the AD8018ARU-REEL?
The AD8018ARU-REEL is primarily used in single-supply xDSL modems where high-output current and low distortion are critical.
- What is the output current capability of the AD8018ARU-REEL?
Each amplifier can drive 400 mA of current into a 10 Ω differential load.
- What is the bandwidth of the AD8018ARU-REEL?
The bandwidth is 130 MHz (–3 dB).
- What is the slew rate of the AD8018ARU-REEL?
The slew rate is 300 V/μs.
- What are the standby and shutdown modes of the AD8018ARU-REEL?
The AD8018ARU-REEL has three modes controlled by two digital logic bits (PWDN1 and PWDN0): full power, standby (outputs low impedance), and shutdown (outputs high impedance).
- What is the operating temperature range of the AD8018ARU-REEL?
The operating temperature range is –40°C to +85°C.
- What are the package options for the AD8018ARU-REEL?
The AD8018ARU-REEL is available in 8-lead SOIC and 14-lead TSSOP packages.
- What is the supply voltage range for the AD8018ARU-REEL?
The supply voltage range is 3.3 V to 8 V.
- How does the AD8018ARU-REEL manage power consumption?
The AD8018ARU-REEL operates with a low supply current of 9 mA per amplifier.
- What are some other applications of the AD8018ARU-REEL besides xDSL modems?
Besides xDSL modems, it is suitable for network equipment, broadband access, USB, PCI, PCMCIA cards, and twisted pair line drivers.
