1/4

REV. B

Structure :

Silicon Monolithic Integrated Circuit

Product :

3 Dual operational amplifier with switch for car audio systems

Type :

BA3131FS

Function :

1. High gain and low distortion. (Gv = 110dB, THD = 0.0015% typ.)

2. Low noise. (Vn = 2

Vrms typ.)

3. Switching circuit can be directly coupled to microcomputer port.

4. Small switching noise.

5. Equipped with 1/2 Vcc output circuit for single power supply.

Absolute Maximum Ratings (Ta=25℃)

Parameter

Symbol

Rating

Unit

Power supply voltage

Vcc

18.0

V

Power dissipation

Pd

750*

mW

Operating temperature

Topr

－40～＋85

℃

Storage temperature

Tastg

－55～＋125

℃

Common-mode input voltage

Vi

3～Vcc

V

Differential input voltage

Vid

Vcc

V

Load current

IoMax.

±50.0

mA

※This value decreases 7.5 mW/℃ for Ta=25℃ or more.

(When mounted on a glass epoxy board (90mm

 50mm  1.6t))

Operating Voltage Range (Ta=25℃)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Power supply voltage

Vcc

6.0

8.0

16.0

V

Single power

source

Application example

Note that ROHM cannot provide adequate confirmation of patents.

The product described in this specification is designed to be used with ordinary electronic equipment or devices (such as audio-visual

equipment, office-automation equipment, communications devices, electrical appliances, and electronic toys).

Should you intend to use this product with equipment or devices which require an extremely high level of reliability and the malfunction of

which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor

controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance.