The AD8018 is a 5 V, rail-to-rail, high output current, xDSL line drive amplifier ideal for USB, PCMCIA, or PCI-based customer premise equipment (CPE). The AD8018 provides maximum reach on 5 V supply, driving 16 dBm of power into a back-terminated, transformer-coupled 100 Ω while maintaining –82 dBc of out-of-band SFDR.
The AD8018 from Analog Devices is a single‑supply (5 V) current‑feedback amplifier designed for xDSL customer‑premise equipment such as USB, PCMCIA, and PCI‑based modems. It delivers up to 400 mA into a 10 Ω differential load while maintaining low distortion and a wide bandwidth.
The device includes two programmable power‑down pins (PWDN1, PWDN0) that allow full‑power, standby, or shutdown operation, and it operates over a temperature range of –40 °C to +85 °C. Detailed specifications, pin configurations, and layout recommendations are provided for designers.
| Bandwidth (‑3 dB, G=1, RL=100 Ω) | 130 MHz |
|---|---|
| Maximum Output Current | 400 mA into 10 Ω differential load |
| Supply Current (Full Power) | 9 mA per amplifier (typ) |
| Input Noise Voltage (100 kHz) | 4.5 nV/√Hz |
| Operating Temperature Range | –40 °C to +85 °C |
| Power‑Supply Range | 3.3 V to 8 V |
The AD8018 can deliver up to 400 mA into a 10 Ω differential load.
Two programmable logic pins, PWDN1 and PWDN0, select full‑power, standby, or shutdown.
The device is rated from –40 °C to +85 °C.