www.fairchildsemi.com
KA324/KA324A, KA2902
Quad Operational Amplifier
Features
• Internally Frequency Compensated for Unity Gain
• Large DC Voltage Gain: 100dB
• Wide Power Supply Range:
KA324 / KA324A : 3V~32V (or
±1.5
~ 16V)
KA2902: 3V~26V (or
±1.5V
~ 13V)
• Input Common Mode Voltage Range Includes Ground
• Large Output Voltage Swing: 0V to V
CC
-1.5V
• Power Drain Suitable for Battery Operation
Description
The KA324 series consist of four independent, high gain,
internally frequency compensated operational amplifiers
which were designed specifically to operate from a single
power supply over a wide voltage range. Operation from
split power supplies is also possible so long as the differ-
ence between the two supplies is 3 volts to 32 volts. Applica-
tion areas include transducer amplifier, DC gain blocks and
all the conventional OP Amp circuits which now can be eas-
ily implemented in single power supply systems.
14-DIP
1
14-SOP
1
Internal Block Diagram
OUT1
1
IN1 (-)
14
OUT4
1
_ +
4
_
13
IN4 (-)
12
IN4 (+)
11
GND
_ +
2
+
_
3
10
IN3 (+)
9
IN3 (-)
8
OUT3
2
IN1 (+)
3
V
CC
4
IN2 (+)
IN2 (-)
OUT2
+
5
6
7
Rev. 1.0.8
©2012 Fairchild Semiconductor Corporation
KA324/KA324A, KA2902
Schematic Diagram
(One Section Only)
V
CC
Q5
Q6
Q12
Q17
Q19
Q20
Q2
IN(-)
Q1
R2
IN(+)
Q11
Q21
Q7
Q8
Q9
Q10
Q13
Q15
Q14
Q16
OUTPUT
Q3
Q4
C1
Q18
R1
GND
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Differential Input Voltage
Input Voltage
Output Short Circuit to GND
Vcc≤15V, T
A
=25°C(One Amp)
Power Dissipation, T
A
=25°C
14-DIP
14-SOP
Operating Temperature Range
Storage Temperature Range
Symbol
V
CC
V
I(DIFF)
V
I
-
P
D
T
OPR
T
STG
KA324/KA324A
±16
or 32
32
-0.3 to +32
Continuous
1310
640
0 ~ +70
-65 ~ +150
KA2902
±13
or 26
26
-0.3 to +26
Continuous
1310
640
-40 ~ +85
-65 ~ +150
Unit
V
V
V
-
mW
°C
°C
Thermal Data
Parameter
Thermal Resistance Junction-Ambient Max.
14-DIP
14-SOP
Symbol
Rθja
Value
95
195
Unit
°C/W
2
KA324/KA324A, KA2902
Electrical Characteristics
(V
CC
= 5.0V, V
EE
= GND, T
A
= 25°C, unless otherwise specified)
Parameter
Symbol
Conditions
KA324
Min.
Typ.
Max.
Min.
KA2902
Typ.
Max.
Unit
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Common Mode
Voltage Range
Supply Current
Large Signal
Voltage Gain
Output Voltage Swing
Common-Mode
Rejection Ratio
Power Supply
Rejection Ratio
Channel Separation
Short Circuit to GND
V
IO
I
IO
I
BIAS
V
I(R)
V
CM
=0V to V
CC
-1.5V
V
O(P)
= 1.4V, R
S
= 0Ω
(Note1)
V
CM
=0V
V
CM
=0V
Note1
R
L
=
∞,V
CC
= 30V
(KA2902, V
CC
=26V)
R
L
=
∞,V
CC
= 5V
V
CC
= 15V, R
L
=2kΩ
V
O(P)
= 1V to 11V
Note1
R
L
= 2kΩ
R
L
=10kΩ
-
-
-
0
-
-
25
26
27
-
65
65
-
-
20
10
1.5
3.0
40
-
1.0
0.7
100
-
28
5
75
100
120
40
40
13
7.0
50
250
V
CC
-1.5
3
1.2
-
-
-
20
-
-
-
60
-
-
-
-
-
0
-
-
25
22
23
-
50
50
-
-
20
10
1.5
3.0
40
-
1.0
0.7
100
-
24
5
75
100
120
40
40
13
7.0
50
250
V
CC
-1.5
3
1.2
-
-
-
100
-
-
-
60
-
-
mV
nA
nA
V
mA
mA
V/mV
V
V
mV
dB
dB
dB
mA
mA
mA
I
CC
G
V
V
O(H)
V
O(L)
CMRR
PSRR
CS
I
SC
I
SOURCE
V
CC
= 5V, R
L
=10kΩ
-
-
f = 1kHz to 20kHz
(Note2)
V
CC
= 15V
V
I(+)
= 1V, V
I(-)
= 0V
V
CC
= 15V, V
O(P)
= 2V
V
I(+)
= 0V, V
I(-)
= 1V
V
CC
= 15V
V
O(P)
= 2V
V
I(+)
= 0V, V
I(-)
= 1V
V
CC
= 15V
V
O(R)
= 200mV
-
Output Current
I
SINK
12
-
45
-
-
V
CC
-
-
-
-
-
V
CC
μA
V
Differential Input Voltage
Note:
V
I(DIFF)
1. V
CC
=30V for KA324, V
CC
= 26V for KA2902
2. This parameter, although guaranteed, is not 100% tested in production.
3
KA324/KA324A, KA2902
Electrical Characteristics
(Continued)
(V
CC
= 5.0V, V
EE
= GND, unless otherwise specified)
The following specification apply over the range of 0°C
≤
T
A
≤
+70°C for the KA324 ; and the -40°C
≤
T
A
≤
+85°C
for the KA2902
Parameter
Symbol
Conditions
V
ICM
= 0V to V
CC
-1.5V
V
O(P)
= 1.4V, R
S
= 0Ω
(Note1)
R
S
= 0Ω (Note2)
V
CM
= 0V
R
S
= 0Ω (Note2)
V
CM
= 0V
Note1
V
CC
= 15V, R
L
= 2.0kΩ
V
O(P)
= 1V to 11V
Note1
R
L
= 2kΩ
R
L
= 10kΩ
KA324
Min.
-
-
-
-
-
0
15
26
27
-
10
5
-
KA2902
Unit
Typ. Max. Min. Typ. Max.
-
7.0
-
10
-
-
-
-
28
5
20
8
-
9.0
-
150
-
500
V
CC
-2.0
-
-
-
20
-
-
V
CC
-
-
-
-
-
0
15
22
23
-
10
5
-
-
7.0
-
10
-
-
-
-
24
5
20
8
-
10.0
-
200
-
500
V
CC
-2.0
-
-
-
100
-
-
V
CC
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Current
Input Offset Current Drift
Input Bias Current
Input Common Mode
Voltage Range
Large Signal Voltage Gain
V
IO
ΔV
IO
/ΔT
I
IO
ΔI
IO
/ΔT
I
BIAS
V
I(R)
G
V
V
O(H)
V
O(L)
I
SOURCE
mV
μV/ °C
nA
pA/
°C
nA
V
V/mV
V
V
mV
mA
mA
V
Output Voltage Swing
V
CC
= 5V, R
L
= 10kΩ
V
I(+)
= 1V, V
I(-)
= 0V
V
CC
= 15V, V
O(P)
= 2V
V
I(+)
= 0V, V
I(-)
= 1V
V
CC
= 15V, V
O(P)
= 2V
-
Output Current
I
SINK
Differential Input Voltage
V
I(DIFF)
Note:
1. V
CC
=30V for KA324, V
CC
= 26V for KA2902
2. These parameters, although guaranteed, are not 100% tested in production.
4
KA324/KA324A, KA2902
Electrical Characteristics
(Continued)
(V
CC
= 5.0V, V
EE
= GND, T
A
=25°C, unless otherwise specified)
Parameter
Symbol
Conditions
V
CM
= 0V to V
CC
-1.5V
V
O(P)
= 1.4V, R
S
= 0Ω
(Note1)
V
CM
= 0V
V
CM
= 0V
Note1
V
CC
= 30V, R
L
=
∞
V
CC
= 5V, R
L
=
∞
V
CC
= 15V, R
L
= 2kΩ
V
O(P)
= 1V to 11V
Note1
R
L
= 2kΩ
R
L
= 10kΩ
-
-
f = 1kHz to 20kHz (Note2)
V
CC
= 15V
V
I(+)
= 1V, V
I(-)
= 0V
V
CC
= 15V, V
O(P)
= 2V
V
I(+)
= 0V, V
I(-)
= 1V
V
CC
= 15V, V
O(P)
= 2V
V
I(+)
= 0V, V
I(-)
= 1V
V
CC
= 15V, V
O(P)
= 200mV
-
KA324A
Min.
-
-
-
0
-
-
25
26
27
-
65
65
-
-
20
10
12
-
Typ.
1.5
3.0
40
-
1.5
0.7
100
-
28
5
85
100
120
40
40
20
50
-
Max.
3.0
30
100
V
CC
-1.5
3
1.2
-
-
-
20
-
-
-
60
-
-
-
V
CC
Unit
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Common-Mode
Voltage Range
Supply Current
Large Signal Voltage Gain
V
IO
I
IO
I
BIAS
V
I(R)
I
CC
G
V
V
O(H)
V
O(L)
mV
nA
nA
V
mA
mA
V/mV
V
V
mV
dB
dB
dB
mA
mA
mA
μA
V
Output Voltage Swing
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Channel Separation
Short Circuit to GND
V
CC
= 5V, R
L
= 10kΩ
CMRR
PSRR
CS
I
SC
I
SOURCE
Output Current
I
SINK
Differential Input Voltage
V
I(DIFF)
Note:
1. V
CC
=30V for KA324A
2. This parameter, although guaranteed, is not 100% tested in production.
5
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