Overview
The AD8018ARUZ-REEL7, produced by Analog Devices Inc., is a high-performance, rail-to-rail output, high-output current amplifier designed specifically for applications requiring low distortion and high current drive capabilities. This dual amplifier is particularly suited for use in single-supply xDSL modems, USB, PCI, PCMCIA cards, and consumer DSL modems. Fabricated using ADI’s high-speed XFCB (eXtra Fast Complementary Bipolar) process, the AD8018 offers high bandwidth, fast slew rate, and low power dissipation, making it an ideal choice for demanding signal processing tasks.
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 (100 kHz) | 4.5 | nV/√Hz | ||
| Single-Tone Distortion (6 V p-p into 10 Ω at 100 kHz) | –86 | dBc | ||
| Out-of-Band SFDR (144 kHz to 500 kHz, RLOAD = 12.5 Ω, PLINE = 13 dBm) | –82 | dBc | ||
| Quiescent Current per Amplifier | 9 | mA | ||
| Operating Temperature Range | –40 | 85 | °C | |
| Package Type | 14-TSSOP |
Key Features
- Rail-to-Rail Output Voltage: The AD8018 can drive signals to within 0.5 V of the power supply rail, ensuring maximum signal integrity.
- High Output Current: Capable of delivering 400 mA of output current into a differential load of 10 Ω.
- Low Distortion: Features low single-tone distortion of –86 dBc and out-of-band SFDR of –82 dBc.
- High Speed: Offers a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- Low Power Operation: Operates with a low quiescent current of 9 mA per amplifier.
- Flexible Power Management: Includes two digital logic bits for standby and shutdown modes.
- Compact Packaging: Available in 8-lead SOIC and 14-lead TSSOP packages.
- RoHS Compliant: Lead-free and RoHS compliant, ensuring environmental sustainability.
Applications
- xDSL Modems: Ideal for single-supply xDSL modems where high-output current and low distortion are critical.
- USB, PCI, PCMCIA Cards: Suitable for use in various interface cards requiring high-speed and low-distortion signal processing.
- Consumer DSL Modems: Used in consumer DSL modems to ensure reliable and high-quality data transmission.
- Twisted Pair Line Drivers: Effective in driving signals over twisted pair lines with minimal distortion.
Q & A
- What is the maximum output current of the AD8018?
The AD8018 can deliver up to 400 mA of output current into a differential load of 10 Ω.
- What is the bandwidth of the AD8018?
The AD8018 has a bandwidth of 130 MHz.
- What is the slew rate of the AD8018?
The slew rate of the AD8018 is 300 V/μs.
- What is the voltage noise density of the AD8018 at 100 kHz?
The voltage noise density at 100 kHz is 4.5 nV/√Hz.
- What are the standby and shutdown modes of the AD8018?
The AD8018 has two digital logic bits (PWDN1 and PWDN0) that allow it to be put into full power, standby (outputs low impedance), or shutdown (outputs high impedance) modes.
- What is the operating temperature range of the AD8018?
The operating temperature range is from –40°C to 85°C.
- What are the package options for the AD8018?
The AD8018 is available in 8-lead SOIC and 14-lead TSSOP packages.
- Is the AD8018 RoHS compliant?
Yes, the AD8018 is lead-free and RoHS compliant.
- What are the typical applications of the AD8018?
The AD8018 is typically used in xDSL modems, USB, PCI, PCMCIA cards, and consumer DSL modems.
- What is the quiescent current per amplifier of the AD8018?
The quiescent current per amplifier is 9 mA.
