The AD8390A is a low power, high output current differential amplifier, ideal for ADSL and ADSL2+ central office and customer premises equipment applications. It features a voltage feedback amplifier, enables high current differential applications, operates at low power, supports single or dual supply operation, and provides high output voltage and current drive.
The AD8390A is a low‑power, high‑output‑current differential amplifier designed for ADSL and ADSL2+ central‑office and customer‑premises equipment. It operates from a single or dual supply (10 V to 24 V) and delivers up to 400 mA peak output current with a 44 V p‑p differential swing.
The handbook lists key features such as selectable power modes, adjustable bias current, and a thermally enhanced 16‑lead LFCSP package. Detailed specifications include quiescent current, slew rate, and distortion performance, while the pin‑out diagram and functional block diagram aid in circuit design. Typical applications cover ADSL/ADSL2+ line drivers and other high‑current differential circuits.
| Supply voltage range | 10 V to 24 V |
|---|---|
| Quiescent supply current (full power) | 5.5 mA |
| Peak output drive current | 400 mA |
| Differential output voltage swing | 44 V p‑p |
| Slew rate | 260 V/µs |
| MTPR (26 kHz‑1.1 MHz) | -70 dBc |
| MTPR (1.1 MHz‑2.2 MHz) | -65 dBc |
The AD8390A can operate from a single or dual supply ranging from 10 V up to 24 V.
In full‑power operation the device draws 5.5 mA of quiescent supply current.
The amplifier can deliver a peak output drive current of 400 mA.
It provides a 44 V peak‑to‑peak differential output voltage.