Dual Operational Amplifier - Fairchild
Description
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fairchildsemi.
com
KA258/KA258A, KA358/KA358A, KA2904
Dual Operational Amplifier
Features
• Internally Frequency Compensated for Unity Gain • Large DC Voltage Gain: 100dB • Wide Power Supply Range: KA258/KA258A, KA358/KA358A: 3V ~ 32V (or ±1.
5V~ 16V) KA2904 : 3V~26V (or ±1.
5V ~ 13V) • Input Common Mode Voltage Range Includes Ground • Large Output Voltage Swing: 0V DC to Vcc - 1.
5V DC • Power Drain Suitable for Battery Operation.
Description
The KA258 series consist of two independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltage.
Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.
Application areas include transducer amplifier, DC gain blocks and all the conventional OP-AMP circuits which now can be easily implemented in single power supply systems.
8-DIP
1
8-SOP
1
9-SIP
1
Internal Block Diagram
OUT1
1
8
VCC
IN1 (-)
2
+
7 OUT2 6 IN2 (-)
1 VCC 2
OUT1
+ 4
IN1(+)
+ 5 GND 6
IN2(+)
7
IN2(-)
IN1 (+)
3
+
3
IN1(-)
8
OUT2
9 VCC Rev.
1.
0.
2
GND
4
5
IN2 (+)
©2002 Fairchild Semiconductor Corporation
KA258/KA258A, KA358/KA358A, KA2904
Schematic Diagram
(One section only)
VCC Q5 Q6 Q12
Q17 Q19
Q20 Q2 IN(-) Q1 R2 IN(+) Q11 Q21 Q15 Q7 Q8 Q9 Q10 Q13 Q14 Q16 OUTPUT Q3 Q4 C1 Q18 R1
GND
Absolute Maximum Ratings
Parameter Supply Voltage Differential Input Voltage Input Voltage Output Short Circuit to GND VCC≤15V, TA = 25°C(One Amp) Operating Temperature Range Storage Temperature Range Symbol VCC VI(DIFF) VI TOPR TSTG KA258/KA258A ±16 or 32 32 -0.
3 to +32 Continuous -25 ~ +85 -65 ~ +150 KA358/KA358A ±16 or 32 32 -0.
3 to +32 Continuous 0 ~ +70 -65 ~ +150 KA2904 ±13 or 26 26 -0.
3 to +26 Continuous -40 ~ +85 -65 ~ +150 Unit V V V °C °C
2
KA258/KA258A, KA358/KA358A, KA2904
Electrical Characteristics
(Vcc = 5.
0V, VEE = GND, TA = 25...
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