Overview
The AD8018AR from Analog Devices Inc. is a high-performance integrated circuit designed for robust data transmission and reception in various communication systems. This device is particularly suited for applications requiring high-speed, low-power operation. Although the AD8018AR has been obsoleted by the manufacturer, it remains a viable option for existing designs and projects. It features two current feedback amplifiers capable of delivering high output current and maintaining low distortion, making it ideal for single-supply xDSL modems and other high-speed applications.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product Status | Obsolete | Type | Driver |
| Protocol | xDSL | Number of Drivers/Receivers | 2/0 |
| Voltage - Supply | 3.3V ~ 8V | Mounting Type | Surface Mount |
| Base Product Number | AD8018 | Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| Output Current | 400 mA | Bandwidth | 130 MHz (–3 dB) |
| Slew Rate | 300 V/μs | Quiescent Current | 9 mA/Amplifier (Typ) |
| Operating Temperature Range | –40°C to +85°C | Noise Density | 4.5 nV/√Hz at 100 kHz |
Key Features
- High-speed data transmission and reception
- Low power consumption
- Compact 8-SOIC package for easy mounting
- Rail-to-rail output voltage and high output current drive
- Low single-tone distortion and out-of-band SFDR
- Flexible standby and shutdown modes using two digital logic bits
- Fabricated with ADI’s high-speed XFCB process for minimal distortion and power dissipation
Applications
- Fiber-to-the-Home (FTTH) systems
- Cable modems
- Digital Subscriber Lines (DSL)
- Wireless Local Area Networks (WLANs)
- USB, PCI, PCMCIA cards
- Consumer DSL modems and twisted pair line drivers
Q & A
- What is the AD8018AR used for?
The AD8018AR is used in various communication systems, including xDSL modems, cable modems, DSL, WLANs, and other high-speed data transmission and reception applications.
- What are the key specifications of the AD8018AR?
The AD8018AR features a supply voltage range of 3.3V to 8V, an output current of 400 mA, a bandwidth of 130 MHz, and a slew rate of 300 V/μs. It is packaged in an 8-SOIC case and operates over a temperature range of –40°C to +85°C.
- Why has the AD8018AR been obsoleted?
The AD8018AR has been obsoleted by the manufacturer, which means it is not recommended for new designs or projects. However, it remains available for existing designs and projects.
- What are the standby and shutdown modes of the AD8018AR?
The AD8018AR has flexible standby and shutdown modes controlled by two digital logic bits (PWDN1 and PWDN0), allowing it to be in full power, standby, or shutdown modes.
- How does the AD8018AR manage power consumption?
The AD8018AR is designed for low-power operation, with a quiescent current of 9 mA per amplifier, making it efficient for high-speed applications.
- What is the significance of the XFCB process in the AD8018AR?
The AD8018AR is fabricated using ADI’s high-speed XFCB (eXtra Fast Complementary Bipolar) process, which minimizes distortion and power dissipation while maintaining high bandwidth and slew rate.
- How can I ensure the authenticity of the AD8018AR?
Ensure you purchase from authorized distributors or suppliers who rigorously test and verify the credentials of original manufacturers and authorized agents.
- What are the packaging and shipping procedures for the AD8018AR?
The AD8018AR is packaged in anti-static and protective packaging to ensure it is not damaged during transportation. The inventory is inspected and counted before shipping to ensure accuracy and integrity.
- What is the warranty period for the AD8018AR?
The AD8018AR comes with a 1-year warranty that covers defects in materials and workmanship under normal use.
- Where can I find detailed information about the AD8018AR?
Detailed information, including application notes, factory information, and images, can be found on the manufacturer's website or through authorized distributors.
