1

Standard ICs

Dual operational amplifier

BA4558 / BA4558F / BA4558N

The BA4558, BA4558F, and BA4558N are monolithic ICs with two operational amplifiers featuring low power con-

sumption and internal phase compensation mounted on a single silicon chip. These products offer high speed, a

wide band width, and low noise.

Outstanding thermal characteristics and voltage gain band width make these ICs ideal for use in a wide variety of

electronic circuits. The BA4558 comes in an 8-pin DIP package and is compatible with the 4558 operational amplifi-

er. The BA4558F comes in an 8-pin SOP package, and the BA4558N in an 8-pin SIP package.

Active filters

Audio amplifiers

VCOs

Other electronic circuits

1ch

2ch

OUT2

– IN2

+ IN2

OUT1

– IN1

+ IN1

4

3

2

1

8

7

5

6

+

–

–

1ch

2ch

+

–

+

–

BA4558 / BA4558F

BA4558N

+

1) Low power dissipation of approximately 50mW

(typ.).

2) Built-in output short-circuit protection circuit.

3) Internal phase compensation.

4) No latch-up.

5) Wide range of common mode and differential volt-

age.

6) High gain and low noise.