Overview
The AD8018AR-REEL, produced by Analog Devices Inc., is a dual high-speed operational amplifier designed for applications requiring high output current and low distortion. This component is particularly suited for single-supply xDSL modems and other high-current drive applications. The AD8018 features Analog Devices' XFCB (eXtra Fast Complementary Bipolar) process, which enables high bandwidth and fast slew rates, minimizing distortion while maintaining low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 3.3 V to 8 V |
| Output Current | Up to 400 mA into 10 Ω differential load |
| Bandwidth | 130 MHz (–3 dB) |
| Slew Rate | 300 V/μs |
| Voltage Noise Density | 4.5 nV/√Hz at 100 kHz |
| Out-of-Band SFDR | –82 dBc, 144 kHz to 500 kHz, RLOAD = 12.5 Ω, PLINE = 13 dBm |
| Quiescent Current per Amplifier | 9 mA (typical) |
| Package Options | 8-lead SOIC, 14-lead TSSOP |
| Operating Temperature Range | –40°C to +85°C |
Key Features
- Rail-to-rail output voltage, allowing the output to swing to within 0.5 V of either power supply rail.
- High output current capability, driving up to 400 mA into a 10 Ω differential load.
- Low distortion, with –86 dBc worst harmonic at 6 V p-p into a differential 10 Ω load at 100 kHz.
- High speed, with a bandwidth of 130 MHz and a slew rate of 300 V/μs.
- Low power consumption, with a quiescent current of 9 mA per amplifier.
- Flexible standby and shutdown modes controlled by two digital logic bits (PWDN1 and PWDN0).
- Stable with capacitive loads and thermal overload protection.
Applications
- xDSL modems, particularly for single-supply configurations.
- USB, PCI, PCMCIA cards.
- Consumer DSL modems.
- Twisted pair line drivers.
Q & A
- What is the primary application of the AD8018AR-REEL?
The AD8018AR-REEL is primarily used in single-supply xDSL modems where high output current and low distortion are critical.
- What is the maximum output current of the AD8018AR-REEL?
The AD8018AR-REEL can deliver up to 400 mA of output current into a 10 Ω differential load.
- What is the bandwidth of the AD8018AR-REEL?
The bandwidth of the AD8018AR-REEL is 130 MHz (–3 dB).
- What is the slew rate of the AD8018AR-REEL?
The slew rate of the AD8018AR-REEL is 300 V/μs.
- What are the package options for the AD8018AR-REEL?
The AD8018AR-REEL is available in 8-lead SOIC and 14-lead TSSOP packages.
- What is the operating temperature range of the AD8018AR-REEL?
The operating temperature range is –40°C to +85°C.
- How does the AD8018AR-REEL manage power consumption?
The AD8018AR-REEL has a low quiescent current of 9 mA per amplifier and features flexible standby and shutdown modes.
- What kind of noise performance does the AD8018AR-REEL offer?
The AD8018AR-REEL has a voltage noise density of 4.5 nV/√Hz at 100 kHz.
- Is the AD8018AR-REEL stable with capacitive loads?
Yes, the AD8018AR-REEL is stable with capacitive loads.
- Does the AD8018AR-REEL have thermal overload protection?
Yes, the AD8018AR-REEL includes thermal overload protection.
