English
Language : 

BA4558 Datasheet, PDF (1/5 Pages) Rohm – Dual operational amplifier
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.
•Applications
Active filters
Audio amplifiers
VCOs
Other electronic circuits
•Features
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.
•Block diagram
BA4558 / BA4558F
BA4558N
OUT1 1
8 VCC
– IN1 2
+ IN1 3
1ch
–+
2ch
+–
7 OUT2
6 – IN2
VEE 4
5 + IN2
+
1ch
–
+
2ch
–
1