Product Summary

The BA3121 is a ground isolation amplifier. The BA3121 is developed for use in car audio applications. The ICs of the BA3121 efficiently eliminate problems caused by wiring resistance, and remove noise generated by the electrical devices used in automobiles. The capacitance values of the external capacitors required for the ICs are small to allow compact and reliable set design. The applications of the BA3121 is car audio systems.

Parametrics

BA3121 absolute maximum ratings: (1)Power supply voltage:18V; (2)Power dissipation:800mW; (3)Operating temperature:-30 to +85℃;(4)Storage temperature:-55 to =125℃.

Features

BA3121 features: (1)Large capacitors not required; (2)High common-mode rejection ratio(57dB typ. at f = 1kHz); (3)Low noise (Vno = 3.5mVrms Typ.); (4)Low distortion (THD = 0.002% Typ.); (5)Two channels.

Diagrams

BA3121 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
BA3121
BA3121
ROHM Semiconductor
Audio Amplifiers AMP 2CH 18V
Data Sheet
0-2000: $0.45
BA3121F
BA3121F
Other

Data Sheet
Negotiable 
BA3121F-E2
BA3121F-E2
ROHM Semiconductor
Audio Amplifiers AUDIO ISOLATION AMP
Data Sheet
0-1: $1.13
1-25: $0.94
25-100: $0.76
100-500: $0.57
BA3121N
BA3121N
ROHM Semiconductor
Audio Amplifiers IC AMP ISOLATION 2CH 18V
Data Sheet
0-1: $1.48
1-25: $0.85
25-100: $0.68
100-500: $0.60