Page 1
DUAL OPERATIONAL AMPLIFIERS LM4558
The LM4558 is characterized for operation from 0
C TO 70
C.
FEATURES
● No frequency Compensation Required
● No latch-up
● Large common mode and differential voltage range
● Parameter tracking over temperature range
● Gain and phase match between amplifiers
● Internally frequency compensated
● Low noise input transistors
Out
IN1(-)
IN1 (+)
SOP8/ DIP8 PKG
1
2
A
-
+
3
+
Vcc
8
Out2
7
B
IN2 (-)
-
6
Gnd
ORDERING INFORMATION
4
Device Package
LM4558D 8 SOP
LM4558N 8 DIP
5
IN2 (+)
DESCRIPTIONS
The LM4558 devices is a monolithic integrated circuit designed for dual operational amplifier.
The high common-mode input voltage range and the absence of latch-up make these amplifiers ideal for
voltage-follower applications. The devices are short-circuit protected and the internal frequency compen
-sation ensures stability without external components.
o
o
SCHEMATIC (EACH AMPLIFIER)
Vcc+
IN-
IN+
Vcc-
OUT
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Page 2
DUAL OPERATIONAL AMPLIFIERS LM4558
Absolute maximum ratings over operating free-air temperature range.
UNIT
V
V
V
o
C
UNIT
V
o
C
Supply Voltage
Differential Input Voltage
Input Voltage
Duration of output short circuit to ground, one amplifier at a time
Short temperature range
Recommended operating conditions
Supply voltage
Operating free-air temperature, T
A
Vcc+
Vcc-
LM4558
V
V
T
CC
I(DIFF)
V
I
stg
MIN
5
-5
0
LM4558
± 22
±30
±15
Unlimited
-65 to 150
MAX
15
-15
70
Electrical characterisitics at specified free-air temperature, V
PARAMETER TEST CONDITIONS*
V
IO
Input Offset Voltage
V
01/V02
Crosstalk attenuation f=1kHz
A
I
IO
Input Offset Current
r
J
I
IB
Input Bias Current
V
ICR
Common-Mode Input Voltage range
VOM
Maximum output voltage swing
A
VD
Large-Signal Differential
Voltage Amplification
CMRR
Common-Mode Rejection Ratio
K
Supply Voltage Sensitivity
SVS
Ratio(ΔV
V
01/V02
/ΔVCC)
IO
Crosstalk Attenuation
I
CC
Supply Current (Both Amplifiers)
* All characteristics are measured under open-loop conditions with zero common-mode input voltage unless
otherwise specified. Full range is 0
o
C to 70 Oc. T
VO=0
RS=100 Ω
Open
=100
VD
VO=0
Input resistance
VO=0
= 10 ㏀
R
L
R
= 2 ㏀
L
R
≥2㏀
L
VO=±10V
R
≥2㏀
L
V
=5V to MAX,
CC
V
MIN
IC=VICR
f=1 kHz to 20kHz 25℃ ㏈120
VO=o, No Load
(min) = 0oC. T
(max)= 70oC.
= 15V(unless otherwise noted)
CC
MIN
25℃
Full Range
25℃
25℃
Full Range
25℃
0
25℃
Full Range
25℃ ±12 ±14
25℃
25℃
±12
±10 ±13
Full Range ±10
25℃ 50 350
Full Range 25
25℃ 65 80
25℃ 30 150 ㎶/V
25℃ 2.5 5.6
(min)
T
A
T
(max)
A
LM4558
TYP MAX
0.5 5
85
100
5 200
5
140 500
±14
3.0
2.0 5.0
6
500
1500
6.6
UNIT
㎷
㎁
MΩ
㎁
V
V
V/㎷
㏈
㎃
150
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Page 3
DUAL OPERATIONAL AMPLIFIERS LM4558
(
)
(
㎶
)
(
)
(
V
TYPICAL PERFORMANCE CHARACTERISTICS
1000
100
10
Input Noise(peak) (㎶)
0
100 1.0k 10M
SOURCE RESISTANCE(Ω)
Figure 1. Burst Noise vs Source Resistance
140
120
100
80
60
INPUT NOISE
40
20
0
10
Figure 4. Spectral Noise Density
10k10 100k
Gv = 10, Rs=100㏀
100 1.0K 10k 100k
FREQUENCY(㎐)
100
10
rms
1.0
INPUT NOISE
0
100 1.0k 1M
SOURCE RESISTANCE(Ω)
Figure 2. RMS Noise vs Source Resistance
140
120
100
80
60
40
VOLTAGE GAIN (dB)
20
vol.
A
0
-20
1.0 10 100 1.0k 10K 100K 1M 10M
Figure 5. Open Loop Frequency Response
10k10 100k
FREQUENCY(㎐)
10
m
1.0
rms
0.1
OUTPUT NOISE
0
Figure 3. Output Noise vs Source Resistance
180
160
140
120
100
80
60
PHASE MARGIN (DECREES)
40
20
1.0 10 100 1.0k 10K 100K 1M 10M
Figure 6. Phase Margin vs Frequency
GV=1000
GV=100
GV=10
GV=1
100 1.0k 1M
SOURCE RESISTANCE(Ω)
10k10 100k
UNITY
FREQUENCY(㎐)
OUTPUT CHARACTERISITICS
CURRENT SINKING
1
1
)
peak
1
9.
7.
5.
-OUTPUT VOLTAGE (V
O
V
3.
1.
10
50 1.0 2.0 10 20 50 100
LOAD RESISTANCE (Ω)
Figure 7. Positive Output Voltage Swing vs Load Resistance
±15 supplies
±12
±9
±6
±3
15
13
)
peak
11
9.0
7.0
5.0
-OUTPUT VOLTAGE (V
O
V
3.0
1.0
100
500 1.0K 2.0K 10k 20k 50k 100k
LOAD RESISTANCE (Ω)
Figure 7. Negative Output Voltage Swing vs Load Resistance
±15 supplies
±12
±9
±6
±3
151
24
20
16
12
8
-OUTPUT VOLTA GE(Vp-p)
0
4
V
0
10
100 1.0k 10k 100k 1000k 1M
FREQUENCY(Hz)
Figure 9. Power Bandwidth
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