www.fairchildsemi.com
KA1458
Dual Operational Amplifier
Features
•
•
•
•
•
Internal frequency compensation
Short circuit protecion
Large common mode and differential voltage range
No latch up
Low power consumption
Description
The KA1458 series are dual general purpose operational
amplifiers, having short circuits protected and require no
external components for frequency compensation. High
common mode voltage range and absence of “latch up"
make the KA1458 ideal for use as voltage followers. The
high gain and wide range of operating voltage provides
superior performance in integrator, summing amplifier and
general feedback applications.
8-DIP
1
8-SOP
1
9-SIP
1
Internal Block Diagram
Rev. 1.0.1
©2001 Fairchild Semiconductor Corporation
KA1458
Schematic Diagram
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Input Differential Voltage
Input Voltage
Operating Temperature Range
KA1458
Storage Temperature Range
Symbol
V
CC
V
I(DIFF)
V
I
T
OPR
T
STG
Value
±18
30
±15
0 ~ + 70
- 65 ~ + 150
Unit
V
V
V
°C
°C
2
KA1458
Electrical Characteristics
(V
CC
= + 15V, V
EE
= - 15V, T
A
= 25
°C
unless otherwise specified)
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Input Voltage Range
Input Resistance
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Supply Current
(Both Amplifier)
Output Voltage Swing
Output Short Circuit Current
Power Consumption
Transient Response
(Unity Gain)
Rise Time
Overshoot
Slew Rate
Symbol
V
IO
I
IO
I
BIAS
G
V
V
I(R)
R
I
CMRR
PSRR
I
CC
V
O(PP)
I
SC
P
C
V
O
= 0V
R
S
≤10KΩ
R
S
≤2KΩ
-
Conditions
R
S
≤10KΩ
-
-
V
O(P-P)
=
±
10V, R
L
≥2.0KΩ
-
-
-
-
-
KA1458
Min. Typ. Max.
-
-
-
20
0.3
60
77
-
2.0
20
80
200
1.0
90
90
2.3
10
300
700
-
-
-
-
-
8.0
-
-
-
240
Unit
mV
nA
nA
V/mV
V
MΩ
dB
dB
mA
V
mA
mW
±
11
±
13
±
11
±
14
±
9
-
-
±
13
20
70
T
R
OS
SR
V
I
= 20mV,R
L
≥2KΩ,C
L
≤100pF
V
I
= 20mV,R
L
≥2KΩ,C
L
≤100pF
V
I
= 10V,R
L
≥2KΩ,C
L
≤100pF
-
0.3
15
0.5
-
µs
%
V/µs
Electrical Characteristics
(V
CC
= +15V, V
EE
= -15V, Note1 unless otherwise specified)
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Input Voltage Range
Note:
1. KA1458 : 0°C
≤T
A
≤70°C
Symbol
V
IO
I
IO
I
BIAS
G
V
CMRR
PSRR
V
O(P.P)
V
I(R)
Conditions
R
S
≤10KΩ
-
-
V
O(P-P)
=
±
10V, R
L
≤2.0KΩ
R
S
≥10KΩ
R
S
≥10KΩ
R
L
= 10KΩ
R
L
= 2KΩ
-
KA1458
Min.
-
-
-
15
70
77
±
11
±
9
±
12
Typ.
-
-
-
-
90
90
±
14
±
13
-
Max.
12
400
1000
-
-
-
-
-
-
Unit
mV
nA
nA
V/mV
dB
dB
V
V
3
KA1458
Typical Performance Characteristics
Figure 1. Open-Loop Voltage Gain vs
Power Supply Voltages
Figure 2. Open-Loop Frequency Response
Figure 3. Power Bandwidth
(Large Signal Output Swing vs Frequency)
Figure 4. Output Voltage Swing vs Load Resistance
4
KA1458
Mechanical Dimensions
Package
8-DIP
1.524
±0.10
0.018
±0.004
0.060
±0.004
0.46
±0.10
6.40
±0.20
0.252
±0.008
0.79
)
0.031
#8
9.20
±0.20
0.362
±0.008
9.60
MAX
0.378
#5
2.54
0.100
5.08
MAX
0.200
7.62
0.300
3.40
±0.20
0.134
±0.008
3.30
±0.30
0.130
±0.012
0.33
MIN
0.013
#1
#4
0.25
–0.05
0~15
°
+0.10
0.010
–0.002
+0.004
(
5
嵌入式系统
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