Overview
The AD8018ARU-EVAL is an evaluation board designed for the AD8018, a high-performance, rail-to-rail, high-output current line driver from Analog Devices Inc. This evaluation board is intended to help users assess and integrate the AD8018 into their systems, particularly for xDSL line drive applications. The AD8018 itself is a dual current feedback amplifier capable of delivering 400 mA of output current and operating on a single 5 V supply, making it suitable for various high-current drive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 8 | V | ||
| Operating Temperature | -40 | 85 | °C | |
| Output Current | 400 | mA | ||
| Power Supply Rejection Ratio (PSRR) | 50 | 56 | dB | |
| Logic Input Voltage (High) | 2.0 | V | ||
| Logic Input Voltage (Low) | 0.8 | V | ||
| Internal Power Dissipation (SO-8 Package) | 650 | mW | ||
| Internal Power Dissipation (TSSOP Package) | 565 | mW |
Key Features
- Rail-to-rail output stage, allowing the output to swing within 0.5 V of either power supply rail.
- High output current capability of up to 400 mA.
- Single 5 V supply operation, making it suitable for xDSL line drive applications.
- Low distortion and high linearity performance.
- Current feedback architecture with a novel two-stage design.
- Emitter followers for low input current and current noise.
- Low impedance current feedback summing junction.
Applications
- xDSL line drivers: The AD8018 is particularly suited for driving xDSL lines due to its high output current and low distortion characteristics.
- High-current drive applications: Suitable for any application requiring high output current and rail-to-rail output capability.
- Telecommunications: Used in various telecommunications equipment where high signal integrity and low distortion are critical.
- Industrial control systems: Can be used in industrial control systems that require high output current and reliable performance.
Q & A
- What is the AD8018ARU-EVAL board used for?
The AD8018ARU-EVAL board is used to evaluate the performance of the AD8018 high-output current line driver from Analog Devices Inc.
- What is the maximum supply voltage for the AD8018?
The maximum supply voltage for the AD8018 is 8 V.
- What is the operating temperature range of the AD8018?
The operating temperature range of the AD8018 is from -40°C to 85°C.
- How much output current can the AD8018 deliver?
The AD8018 can deliver up to 400 mA of output current.
- What is the power supply rejection ratio (PSRR) of the AD8018?
The PSRR of the AD8018 is between 50 dB and 56 dB.
- What are the logic input voltage levels for the AD8018?
The logic input voltage levels are 2.0 V for high and 0.8 V for low.
- What are the typical applications of the AD8018?
The AD8018 is typically used in xDSL line drive applications, high-current drive applications, telecommunications, and industrial control systems.
- What is the internal power dissipation of the AD8018 in SO-8 and TSSOP packages?
The internal power dissipation is 650 mW for the SO-8 package and 565 mW for the TSSOP package.
- Does the AD8018 support rail-to-rail output?
Yes, the AD8018 has a rail-to-rail output stage, allowing the output to swing within 0.5 V of either power supply rail.
- What architecture does the AD8018 use?
The AD8018 uses a current feedback architecture with a novel two-stage design.
