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General Description
The MAX4493/MAX4494/MAX4495 single/dual/quad
general-purpose operational amplifiers are designed
for use in systems powered with dual supplies from
2.25V to 5.5V. These op amps provide a unity-gain
bandwidth of 5MHz with only 770A of quiescent cur-
rent per amplifier. The wide input common-mode range
extends from 200mV beyond the negative rail to within
1.5V of the positive supply rail while the output swings
within 10mV (R
L
= 100k
) of either rail.
These amplifiers have excellent (110dB) open-loop
gain with very low THD+N of 0.002% (f = 1kHz). The
single MAX4493 is available in a tiny 5-pin SC70 pack-
age and the dual MAX4494 is available in the space-
saving 8-pin SOT23. The quad MAX4495 is available in
both 14-pin TSSOP and 14-pin SO packages. All prod-
ucts are rated at the automotive temperature range of
-40C to +125C.
________________________Applications
Battery-Powered Systems
DAC Output Amplifiers
Industrial Control Systems
Voltage Reference Generators
Signal Conditioning
Features
o 770A Supply Current per Amplifier
o Operates from Dual 2.25V to 5.5V Supplies
o 5MHz Gain-Bandwidth Product
o Rail-to-Rail
Output Swing
o Input Voltage Range Extends 200mV Below the
Negative Rail
o 110dB Open-Loop Gain (R
L
= 100k
)
o Low THD+N of 0.002% (f = 1kHz)
o No Phase Reversal for Overdriven Inputs
o Unity-Gain Stable
o Available in Space-Saving Packages
5-Pin SC70 (MAX4493)
8-Pin SOT23 (MAX4494)
14-Pin TSSOP (MAX4495)
MAX4493/MAX4494/MAX4495
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
________________________________________________________________ Maxim Integrated Products
1
V
EE
OUT
IN-
1
5 V
CC
IN+
MAX4493
SC70/SOT23-5
TOP VIEW
2
3
4
Pin Configurations
19-1797; Rev 1; 10/01
Ordering Information
Pin Configurations continued at end of data sheet.
PART
TEMP.
RANGE
PIN-
PACKAGE
TOP
MARK
MAX4493AXK-T
-40
C to +125C 5 SC70-5
ABR
MAX4493AUK-T
-40
C to +125C 5 SOT23-5
ADPG
MAX4494AKA-T
-40
C to +125C 8 SOT23-8
AAEM
MAX4494AUA
-40
C to +125C 8 MAX
--
MAX4494ASA
-40
C to +125C 8 SO
--
MAX4495AUD
-40
C to +125C 14 TSSOP
--
MAX4495ASD
-40
C to +125C 14 SO
--
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Typical Operating Characteristic
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
100k
10k
1k
100
10
MAX4493-08
FREQUENCY (Hz)
THD + N (%)
0
0.002
0.001
0.004
0.006
0.008
0.007
0.003
0.005
Typical Operating Circuit appears at end of data sheet.
MAX4493/MAX4494/MAX4495
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, R
L
= 100k
to ground, T
A
= -40C to +125C. Typical values are at T
A
= +25C, unless otherwise noted.)
(Note 1)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
CC
to V
EE
)................................................+12V
Voltage from Any Pin to Ground or
Any Other Pin .............................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Output Short-Circuit Duration to
V
CC
, V
EE,
or Ground ............................................Continuous
Continuous Power Dissipation (T
A
= +70C)
5-Pin SC70 (derate 3.1mW/
C above +70C)............247mW
5-Pin SOT23 (derate 7.1mW/
C above +70C)..........571mW
8-Pin SOT23 (derate 9.1mW/
C above +70C)..........727mW
8-Pin MAX (derate 4.5mW/
C above +70C) ...........362mW
8-Pin SO (derate 5.9mW/
C above +70C)................471mW
14-Pin TSSOP (derate 9.1mW/
C above +70C) .......727mW
14-Pin SO (derate 8.3mW/
C above +70C)..............667mW
Operating Temperature Range .........................-40C to +125C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
Range
V
S
Guaranteed by PSRR test
2.25
5.5
V
Quiescent Supply Current per
Amplifier
I
S
770
1100
A
T
A
= +25
C
0.3
5
Input Offset Voltage
V
OS
T
A
= T
MIN
to T
MAX
10
mV
Input Offset Voltage Drift
TCV
OS
3
V/
C
Input Offset Voltage Channel
Matching
MAX4494 and MAX4495
1
mV
Input Bias Current
I
B
0.2
1
A
Input Offset Current
I
OS
5
300
nA
Differential mode (-1V
V
IN
+1V)
250
k
Input Resistance
R
IN
Common mode (V
EE
- 0.2V
V
CM
V
CC
-
1.5V)
110
M
Common-Mode Input Voltage
Range
V
CM
Guaranteed by CMRR test
V
EE
-
0.2V
V
CC
-
1.5V
V
Common-Mode Rejection Ratio
CMRR
V
EE
- 0.2V
V
CM
V
CC
- 1.5V
65
90
dB
Power-Supply Rejection Ratio
PSRR
V
S
=
2.25V to 5.5V
65
80
dB
R
L
= 100k
, V
EE
+ 0.25V
V
OUT
V
CC
-
0.25V
85
110
Large-Signal Voltage Gain
A
VOL
R
L
= 1k
, V
EE
+ 0.5V
V
OUT
V
CC
- 0.5V
65
90
dB
R
L
= 100k
, V
CC
- V
OH
and V
OL
- V
EE
10
150
Output Voltage Swing
V
OUT
R
L
= 1k
, V
CC
- V
OH
and V
OL
- V
EE
200
450
mV
Output Short-Circuit Current
I
SC
Sourcing or sinking
15
mA
Note 1: All devices are 100% production tested at T
A
= +25C. Limits over the operating temperature range are guaranteed by
design and not production tested.
MAX4493/MAX4494/MAX4495
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, R
L
= 100k
to ground, C
L
= 15pF, T
A
= +25C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Gain-Bandwidth Product
GBWP
5
MHz
Full-Power Bandwidth
FPBW
V
OUT
= 5Vp-p
190
kHz
Slew Rate
SR
V
OUT
= 5Vp-p
3
V/s
Phase Margin
75
degrees
Gain Margin
15
dB
Total Harmonic Distortion Plus
Noise
THD+N
f = 1kHz, V
OUT
= 5Vp-p, A
V
= +1V/V
0.002
%
Settling Time to 0.01%
t
S
A
V
= +1V/V, V
OUT
= 5V step
4
s
Input Capacitance
C
IN
2
pF
Input Noise Voltage Density
e
IN
f = 1kHz
8
nV/
Hz
Input Noise Current Density
i
IN
f = 1kHz
0.2
pA/
Hz
All-Hostile Crosstalk
f = 1kHz, MAX4494 and MAX4495
-100
dB
Capacitive-Load Stability
A
V
= +1V/V, no sustained oscillations
300
pF
Power-Up Time
t
ON
V
OUT
= 1V, 1s power supply rise-time
3
s
Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0, R
L
= 100k
to ground, C
L
= 15pF, T
A
= +25C, unless otherwise noted.)
125
75
100
25
50
-25
0
-50
600
650
675
700
625
725
750
775
800
825
850
875
900
SUPPLY CURRENT vs. TEMPERATURE
MAX4493-01
TEMPERATURE (
C)
SUPPLY CURRENT (
A)
V
SUPPLY
=
5V
V
SUPPLY
=
2.5V
INPUT OFFSET VOLTAGE
vs.TEMPERATURE
MAX4493-02
0
100
300
200
600
700
500
400
800
INPUT OFFSET VOLTAGE (
V)
-50
0
25
-25
50
75
100
125
TEMPERATURE (
C)
INPUT BIAS CURRENT
vs.TEMPERATURE
MAX4493-03
100
125
175
150
250
275
225
200
300
INPUT BIAS CURRENT (nA)
-50
0
25
-25
50
75
100
125
TEMPERATURE (
C)
MAX4493/MAX4494/MAX4495
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0, R
L
= 100k
to ground, C
L
= 15pF, T
A
= +25C, unless otherwise noted.)
0
50
100
150
200
250
300
350
400
-5.0
-2.5
0
2.5
5.0
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
MAX4493-04
COMMON-MODE VOLTAGE (V)
INPUT BIAS CURRENT (nA)
V
SUPPLY
=
2.5V
V
SUPPLY
=
5V
COMMON-MODE REJECTION
vs. FREQUENCY
COMMON-MODE REJECTION (dB)
-120
-80
-100
-40
-60
-20
0
1
10
100
1k
100k
1M
MAX4493-05
FREQUENCY (Hz)
10k
100
1k
10k
100k
POWER-SUPPLY REJECTION vs. FREQENCY
(V
SUPPLY
=
2.5V to 5.5V)
MAX4493-06
FREQUENCY (Hz)
POWER SUPPLY REJECTION (dB)
-40
-100
-90
-80
-70
-60
-50
100
1
1
1k
10k
100k
10
100
1M
INPUT VOLTAGE NOISE DENSITY
vs. FREQUENCY
10
MAX4493-07
FREQUENCY (Hz)
NOISE DENSITY (nV/
Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
100k
10k
1k
100
10
MAX4493-08
FREQUENCY (Hz)
THD + N (%)
0
0.002
0.001
0.004
0.006
0.008
0.007
0.003
0.005
0
6
4
2
10
8
18
16
14
12
20
-50
-25
0
25
50
75
100
125
OUTPUT VOLTAGE SWING
vs. TEMPERATURE (R
L
= 100k
)
MAX4493-09
TEMPERATURE (
C)
OUTPUT VOLTAGE SWING (mV)
V
OL
- V
EE
V
CC
- V
OH
0
50
75
100
25
125
150
175
200
225
250
275
OUTPUT VOLTAGE SWING
vs. TEMPERATURE (R
L
= 1k
)
MAX4493-10
TEMPERATURE (
C)
OUTPUT VOLTAGE SWING (mV)
-50
0
25
-25
50
75
100
125
V
CC
- V
OH
V
OL
- V
EE
40
60
100
80
120
140
-50
0
-25
25
50
75
100
125
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MAX4493-11
TEMPERATURE (
C)
LARGE-SIGNAL GAIN (dB)
R
L
= 100k
V
EE
+ 0.25V
V
OUT
V
CC
- 0.25V
R
L
= 1k
V
EE
+ 0.5V
V
OUT
V
CC
- 0.5V
0.1k
1k
10k
100k
1M
10M
100M
MAX4493-12
GAIN AND PHASE vs. FREQUENCY
FREQUENCY (Hz)
GAIN (dB)
-60
-40
-20
-10
10
20
40
60
-50
-30
30
0
50
-270
-180
-90
-45
45
90
180
270
-225
-135
135
0
225
PHASE (degrees)
GAIN
PHASE
A
V
= +1000V/V
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
_______________________________________________________________________________________
5
GAIN (dB)
GAIN AND PHASE vs. FREQUENCY
(C
L
= 300pF)
FREQUENCY (Hz)
-60
-40
-20
-10
10
20
40
60
-50
-30
30
0
50
0.1k
1k
10k
100k
1M
10M
100M
-270
-180
-90
-45
45
90
180
270
-225
-135
135
0
225
PHASE (degrees)
MAX4493-13
A
V
= +1000V/V
GAIN
PHASE
80
90
85
100
95
110
120
105
115
8.8
9.2
9.4
9.0
9.6
9.8
10.0
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
CC
, V
CC
= +5V, V
EE
= -5V)
MAX4493-14
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
LARGE-SIGNAL GAIN (dB)
R
L
= 100k
R
L
= 1k
R
L
= 10k
80
90
85
100
95
110
105
115
120
8.8
9.2
9.4
9.0
9.6
9.8
10.0
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
EE
, V
CC
= +5V, V
EE
= -5V)
MAX4493-15
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
LARGE-SIGNAL GAIN (dB)
R
L
= 100k
R
L
= 1k
R
L
= 10k
3.4
3.8
3.6
4.0
4.2
4.4
R
L
= 100k
R
L
= 1k
R
L
= 10k
70
80
75
90
85
100
95
105
115
110
120
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
CC
, V
CC
= +2.25V, V
EE
= -2.25V)
MAX4493-16
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
LARGE-SIGNAL GAIN (dB)
3.4
3.8
3.6
4.0
4.2
4.4
R
L
= 100k
R
L
= 1k
R
L
= 10k
70
80
75
90
85
100
95
105
110
115
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
EE
, V
CC
= +2.25V, V
EE
= -2.25V)
MAX4493-17
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
LARGE-SIGNAL GAIN (dB)
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0, R
L
= 100k
to ground, C
L
= 15pF, T
A
= +25C, unless otherwise noted.)
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4493-19
10
s/div
INPUT VOLTAGE
(2V/div)
OUTPUT VOLTAGE
(2V/div)
0
-120
10k
1M
10M
100k
MAX4494/MAX4495
CROSSTALK vs. FREQUENCY
MAX4493-
18
FREQUENCY (Hz)
CROSSTALK (dB)
-100
-80
-60
-40
-20
MAX4493/MAX4494/MAX4495
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