Overview
The AD8018ARUZ, produced by Analog Devices Inc., is a dual, high-speed, low-distortion amplifier designed for use in single-supply xDSL modems and other high-current drive applications. This amplifier is fabricated using ADI’s high-speed XFCB (eXtra Fast Complementary Bipolar) process, ensuring high bandwidth and fast slew rates to minimize distortion while maintaining low power dissipation. The AD8018ARUZ is particularly suited for applications requiring high output current and low distortion, such as in xDSL systems, USB, PCI, and PCMCIA cards.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | 8 | V | |
| Operating Temperature | -40 | 85 | °C | |
| Output Current | 350 | 400 | mA | |
| Bandwidth | 130 | MHz | ||
| Slew Rate | 300 | V/μs | ||
| Voltage Noise Density | 4.5 | nV/√Hz | ||
| Out-of-Band SFDR | -82 | dBc | ||
| Quiescent Current per Amplifier | 9 | mA | ||
| Package Type | 14-Lead TSSOP |
Key Features
- Rail-to-rail output voltage, allowing the amplifier to swing to within 0.5 V of either power supply rail.
- High output current drive capability of up to 400 mA into a differential load of 10 Ω.
- Low distortion with a single-tone distortion of –86 dBc and an out-of-band SFDR of –82 dBc.
- High speed with a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- Low noise with a voltage noise density of 4.5 nV/√Hz.
- Flexible standby and shutdown modes controlled by two digital logic bits.
- Low power operation with a quiescent current of 9 mA per amplifier.
- Compact packaging in 14-lead TSSOP.
Applications
- xDSL modems (ADSL, SDSL, VDSL) where high output current and low distortion are critical.
- USB, PCI, and PCMCIA cards requiring high-speed and low-distortion signal driving.
- Consumer DSL modems and twisted pair line drivers.
- Other high-current drive applications in telecommunications and data transmission systems.
Q & A
- What is the AD8018ARUZ primarily used for?
The AD8018ARUZ is primarily used in single-supply xDSL modems and other applications requiring high output current and low distortion.
- What is the output current capability of the AD8018ARUZ?
The AD8018ARUZ can drive up to 400 mA of output current into a differential load of 10 Ω.
- What is the bandwidth and slew rate of the AD8018ARUZ?
The AD8018ARUZ has a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- How does the AD8018ARUZ manage power consumption?
The AD8018ARUZ operates with a low quiescent current of 9 mA per amplifier and features flexible standby and shutdown modes.
- What types of packages are available for the AD8018ARUZ?
The AD8018ARUZ is available in 14-lead TSSOP packages.
- What is the operating temperature range of the AD8018ARUZ?
The operating temperature range is from -40°C to 85°C.
- What is the supply voltage range for the AD8018ARUZ?
The supply voltage range is from 3.3 V to 8 V.
- How does the AD8018ARUZ minimize distortion?
The AD8018ARUZ minimizes distortion through its high bandwidth and fast slew rate, achieved using ADI’s high-speed XFCB process.
- What are some common applications for the AD8018ARUZ besides xDSL modems?
Besides xDSL modems, the AD8018ARUZ is used in USB, PCI, and PCMCIA cards, as well as in other high-current drive applications.
- Is an evaluation board available for the AD8018ARUZ?
