LM1896 and LM2896 are high-performance 6V stereo power amplifiers that can deliver 1 watt per channel or 2 watts bridged monaural power. It utilizes a unique patented compensation scheme and is ideal for sensitive AM radio applications. The amplifier has a wide supply range of 3V–9V, making it suitable for battery operation. The LM2896 is available for higher supply voltages (greater than 9V). The product features low AM radiation, low noise, low distortion, no turn-on 'pop' sound, adjustable voltage gain and bandwidth, and smooth waveform clipping. It is suitable for compact AM-FM radios, stereo tape recorders and players, and high-power portable stereos.
The LM1896/LM2896 is a high‑performance dual audio power amplifier designed for low‑noise, low‑distortion operation in AM radios, portable stereos, and tape recorders. It offers a wide supply range (3 V‑9 V for LM1896, up to 15 V for LM2896) and can operate in stereo or bridged monaural mode.
The document provides absolute maximum ratings, electrical characteristics, typical performance curves, application hints for AM radios, bridge‑mode operation guidelines, printed‑circuit‑board layouts, and physical dimensions of the dual‑in‑line and single‑in‑line packages.
| Supply Voltage (LM1896) | 3 V – 10 V |
|---|---|
| Supply Voltage (LM2896) | 3 V – 15 V |
| Output Power (LM2896P‑1 Dual Mode) | 2.0 – 2.5 W per channel |
| THD (LM1896, 1 kHz) | 0.09 % |
| Input Impedance | 50 Ω – 100 Ω – 350 Ω |
| Power Supply Rejection Ratio (PSRR) | 40 dB – 54 dB |
The LM1896 operates from 3 V to 10 V.
It delivers 2.0 to 2.5 W per channel in dual mode.
The total harmonic distortion is 0.09 % at 1 kHz.