BA3121F-E2 Datasheet, PDF (1/9 Pages) Rohm – Ground Isolation Amplifier

Audio Accessory IC Series
Ground Isolation
Amplifier
BA3121F, BA3123F
No.09092EAT01
●Description
The BA3121F/BA3123F are ground isolation amplifiers developed for use in car audio applications.
This IC 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.
●Features
1) Large capacitors not required
2) High common-mode rejection ratio (57dB typ. at f = 1kHz).
3) Low noise (VNO = 3.5μVrms Typ.).
4) Low distortion (THD = 0.002% Typ.).
5) Two channels.
●Applications
Car audio systems
●Line up matrix
Operation temperature
BA3121F
－30～＋85C
BA3123F
－40～＋85C
●Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Power supply voltage
Vcc
Power dissipation
Pd
Operation
BA3121F
Topr
temperature BA3123F
Storage temperature
Tstg
＊Reduced by 4.5mW in Ta of 1C over 25C.
●Recommended operating conditions (Ta = 25C)
Parameter
Symbol
Min.
Power supply voltage
Vcc
4
Limits
18
450*
－30～＋85
－40～＋85
－55～＋125
Typ.
Max.
12
18
Unit
V
mW
℃
℃
℃
Unit
V
www.rohm.com
1/8
© 2009 ROHM Co., Ltd. All rights reserved.
2009.08 - Rev.A