ADAU1590 is a high-fidelity power amplifier, using a 2-channel bridge-tied load circuit, integrated Σ-Δ modulator and power amplifier, can drive speakers, supports short circuit protection and overtemperature protection
The ADAU1590 is a 2‑channel, bridge‑tied load (BTL) switching audio power amplifier that integrates a Z‑modulator and a programmable gain amplifier. It accepts analog inputs, provides a digital control interface for reset, mute, and gain, and drives speakers directly from supply voltages of 9 V to 15 V.
The device includes short‑circuit, over‑temperature, over‑current, and undervoltage protection, as well as pop‑noise suppression during mute and power‑up. Detailed specifications, pin configurations, timing diagrams, and ordering information are provided throughout the handbook.
| Output Power (1 kHz, 1 % THD+N, 80 % efficiency) | 7 W |
|---|---|
| Typical Efficiency | >90 % (8 Ω load) |
| Supply Voltage Range | 9 V to 15 V |
| Maximum Junction Temperature | 150 °C |
The output stage can operate from supply voltages ranging from 9 V to 15 V.
Typical efficiency is greater than 90 % at an 8 Ω load.