Dual operational amplifier
Standard ICs
Dual operational amplifier
BA4558 / BA4558F / BA4558N
The BA4558, BA4558F, and BA4558N are monolithic ICs ...
Description
Standard ICs
Dual operational amplifier
BA4558 / BA4558F / BA4558N
The BA4558, BA4558F, and BA4558N are monolithic ICs with two operational amplifiers featuring low power consumption 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 amplifier. 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 voltage. 6) High gain and low noise.
Block diagram
BA4558 / BA4558F BA4558N OUT1 1 8 VCC
– IN1
2 –
1ch
7
OUT2
1ch
+
–
+
2ch –
+
2ch
+ IN1
3
+
–
6
– IN2 1 2 3 4 5 6 7 OUT2 8 VCC
– IN1
OUT1
+ IN1
VEE
4
5
+ IN2
+ IN2
– IN2
VEE
1
Standard ICs
BA4558 / BA4558F / BA4558N
Internal circuit configuration
VCC R1 Q7 Q5 Q13
Q11 Q8 R6 Q9 R5 + IN Q12 Q6 Q3 Q4 Q10 Q14 OUT R7 R8 Q15
– IN
Q1
Q2
R2 VEE
R3
R9 R4
D
Absolute maximum ratings (Ta = 25°C)
Parameter Power supply voltage Power dissipation Differential input voltage Common-mode input vo...
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