19-1797; Rev 3; 12/09
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
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 or with a single supply of +4.5V to
+11V. These op amps provide a unity-gain bandwidth
of 5MHz with only 770µA of quiescent current 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
= 100kΩ) 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
-40°C to +125°C.
Features
o
770µA 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
= 100kΩ)
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
________________________Applications
Battery-Powered Systems
DAC Output Amplifiers
Industrial Control Systems
Voltage Reference Generators
Signal Conditioning
PART
MAX4493AXK+T
MAX4493AXK/V+T
MAX4493AUK+T
MAX4494AKA+T
MAX4494AKA/V+T
MAX4494AUA+
MAX4494ASA+
MAX4495AUD+
MAX4495ASD+
MAX4493-08
Ordering Information
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
ABR
+AUE
ADPG
AAEM
+AEQP
—
—
—
—
-40°C to +125°C 5 SC70
-40°C to +125°C 5 SC70
-40°C to +125°C 5 SOT23
-40°C to +125°C 8 SOT23
-40°C to +125°C 8 SOT23
-40°C to +125°C 8 µMAX
-40°C to +125°C 8 SO
-40°C to +125°C 14 TSSOP
-40°C to +125°C 14 SO
Typical Operating Characteristic
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
0.008
0.007
0.006
THD + N (%)
0.005
0.004
0.003
+Denotes
a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
T = Tape and reel.
Pin Configurations
TOP VIEW
+
IN+
1
5
V
CC
0.002
0.001
0
1
10
1k
100
FREQUENCY (Hz)
10k
100k
MAX4493
V
EE
2
IN-
3
4
OUT
Typical Operating Circuit appears at end of data sheet.
SC70/SOT23-5
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
MAX4493/MAX4494/MAX4495
ABSOLUTE MAXIMUM RATINGS
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
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ............247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)..........571mW
8-Pin SOT23 (derate 9.1mW/°C above +70°C)..........727mW
8-Pin µMAX
®
(derate 4.5mW/°C above +70°C) .........362mW
8-Pin SO (derate 5.9mW/°C above +70°C)................471mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .......727mW
14-Pin SO (derate 8.3mW/°C above +70°C)..............667mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
µMAX is a registered trademark of Maxim Integrated products, Inc.
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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, R
L
= 100kΩ to ground, T
A
= -40°C to +125°C. Typical values are at T
A
= +25°C, unless otherwise noted.)
(Note 1)
PARAMETER
Operating Supply Voltage
Range
Quiescent Supply Current per
Amplifier
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Voltage Channel
Matching
Input Bias Current
Input Offset Current
Input Resistance
Common-Mode Input Voltage
Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Large-Signal Voltage Gain
I
B
I
OS
Differential mode (-1V
≤
V
IN
≤
+1V)
R
IN
Common mode (V
EE
- 0.2V
≤
V
CM
≤
V
CC
-
1.5V)
Guaranteed by CMRR test
V
EE
- 0.2V
≤
V
CM
≤
V
CC
- 1.5V
V
S
=
±2.25V
to
±5.5V
R
L
= 100kΩ, V
EE
+ 0.25V
≤
V
OUT
≤
V
CC
-
0.25V
R
L
= 1kΩ, V
EE
+ 0.5V
≤
V
OUT
≤
V
CC
- 0.5V
Output Voltage Swing
Output Short-Circuit Current
V
OUT
I
SC
R
L
= 100kΩ, V
CC
- V
OH
and V
OL
- V
EE
R
L
= 1kΩ, V
CC
- V
OH
and V
OL
- V
EE
Sourcing or sinking
V
EE
-
0.2V
65
65
85
65
90
80
110
90
10
200
15
150
450
mV
mA
SYMBOL
V
S
I
S
V
OS
TCV
OS
MAX4494 and MAX4495
T
A
= +25°C
T
A
= T
MIN
to T
MAX
3
1
0.2
5
250
110
V
CC
-
1.5V
1
300
CONDITIONS
Guaranteed by PSRR test
MIN
±2.25
770
0.3
TYP
MAX
±5.5
1100
5
10
UNITS
V
µA
mV
µV/°C
mV
µA
nA
kΩ
MΩ
V
dB
dB
dB
V
CM
CMRR
PSRR
A
VOL
Note 1:
All devices are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed by
design and not production tested.
2
_______________________________________________________________________________________
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, R
L
= 100kΩ to ground, C
L
= 15pF, T
A
= +25°C, unless otherwise noted.)
PARAMETER
Gain-Bandwidth Product
Full-Power Bandwidth
Slew Rate
Phase Margin
Gain Margin
Total Harmonic Distortion Plus
Noise
Settling Time to 0.01%
Input Capacitance
Input Noise Voltage Density
Input Noise Current Density
All-Hostile Crosstalk
Capacitive-Load Stability
Power-Up Time
t
ON
THD+N
t
S
C
IN
e
IN
i
IN
f = 1kHz
f = 1kHz
f = 1kHz, MAX4494 and MAX4495
A
V
= +1V/V, no sustained oscillations
V
OUT
= 1V, 1µs power supply rise-time
f = 1kHz, V
OUT
= 5Vp-p, A
V
= +1V/V
A
V
= +1V/V, V
OUT
= 5V step
SYMBOL
GBWP
FPBW
SR
V
OUT
= 5Vp-p
V
OUT
= 5Vp-p
CONDITIONS
MIN
TYP
5
190
3
75
15
0.002
4
2
8
0.2
-100
300
3
MAX
UNITS
MHz
kHz
V/µs
degrees
dB
%
µs
pF
nV/√Hz
pA/√Hz
dB
pF
µs
MAX4493/MAX4494/MAX4495
Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0V, R
L
= 100kΩ to ground, C
L
= 15pF, T
A
= +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE
vs.TEMPERATURE
MAX4493-01
MAX4493-02
SUPPLY CURRENT vs. TEMPERATURE
900
875
850
825
800
775
750
725
700
675
650
625
600
-50
800
700
INPUT OFFSET VOLTAGE (μV)
600
500
400
300
200
100
0
-25
0
25
50
75
100
125
-50
-25
INPUT BIAS CURRENT
vs.TEMPERATURE
275
INPUT BIAS CURRENT (nA)
250
225
200
175
150
125
100
MAX4493-03
300
SUPPLY CURRENT (μA)
V
SUPPLY
=
±5V
V
SUPPLY
=
±2.5V
0
TEMPERATURE (°C)
75
50
TEMPERATURE (°C)
25
100
125
-50
-25
0
25
75
50
TEMPERATURE (°C)
100
125
_______________________________________________________________________________________
3
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
MAX4493/MAX4494/MAX4495
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0V, R
L
= 100kΩ to ground, C
L
= 15pF, T
A
= +25°C, unless otherwise noted.)
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
MAX4493-04
COMMON-MODE REJECTION
vs. FREQUENCY
MAX4493-05
POWER-SUPPLY REJECTION vs. FREQENCY
(V
SUPPLY
=
±2.5V
to
±5.5V)
MAX4493-06
400
350
INPUT BIAS CURRENT (nA)
300
250
200
150
100
50
0
-5.0
-2.5
0
2.5
V
SUPPLY
=
±5V
V
SUPPLY
=
±2.5V
0
COMMON-MODE REJECTION (dB)
-20
-40
-60
-80
-100
-120
-40
POWER SUPPLY REJECTION (dB)
-50
-60
-70
-80
-90
-100
5.0
1
10
100
COMMON-MODE VOLTAGE (V)
10k
FREQUENCY (Hz)
1k
100k
1M
100
1k
10k
100k
FREQUENCY (Hz)
INPUT VOLTAGE NOISE DENSITY
vs. FREQUENCY
MAX4493-07
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX4493-08
OUTPUT VOLTAGE SWING
vs. TEMPERATURE (R
L
= 100kΩ)
18
OUTPUT VOLTAGE SWING (mV)
16
14
12
10
8
6
4
2
0
V
OL
- V
EE
V
CC
- V
OH
MAX4493-09
100
0.008
0.007
0.006
20
NOISE DENSITY (nV/√Hz)
10
THD + N (%)
0.005
0.004
0.003
0.002
0.001
1
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
0
1
10
1k
100
FREQUENCY (Hz)
10k
100k
-50
-25
0
25
50
75
100
125
TEMPERATURE (°C)
OUTPUT VOLTAGE SWING
vs. TEMPERATURE (R
L
= 1kΩ)
MAX4493-10
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MAX4493-11
GAIN AND PHASE vs. FREQUENCY
MAX4493-12
275
250
OUTPUT VOLTAGE SWING (mV)
225
200
175
150
125
100
75
50
25
0
-50
-25
0
25
50
75
100
V
OL
- V
EE
V
CC
- V
OH
140
R
L
= 100kΩ
V
EE
+ 0.25V
≤
V
OUT
≤
V
CC
- 0.25V
LARGE-SIGNAL GAIN (dB)
120
60
50
40
30
GAIN (dB)
20
10
0
-10
-20
-30
-40
-50
-60
0.1k
PHASE
A
V
= +1000V/V
270
225
180
135
PHASE (degrees)
90
45
0
-45
-90
-135
-180
GAIN
100
R
L
= 1kΩ
V
EE
+ 0.5V
≤
V
OUT
≤
V
CC
- 0.5V
80
60
40
125
-50
-25
0
25
50
75
100
125
TEMPERATURE (°C)
TEMPERATURE (°C)
1k
10k
100k
1M
FREQUENCY (Hz)
10M
-225
-270
100M
4
_______________________________________________________________________________________
SC70, Low-Power, General-Purpose,
Dual-Supply, Rail-to-Rail Op Amps
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, V
CM
= 0V, R
L
= 100kΩ to ground, C
L
= 15pF, T
A
= +25°C, unless otherwise noted.)
MAX4493/MAX4494/MAX4495
MAX4493/MAX4494/MAX4495
GAIN AND PHASE vs. FREQUENCY
(C
L
= 300pF)
60
50
40
30
20
GAIN (dB)
10
0
-10
-20
-30
-40
-50
-60
0.1k
GAIN
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
CC
, V
CC
= +5V, V
EE
= -5V)
115
R
L
= 100kΩ
LARGE-SIGNAL GAIN (dB)
110
105
100
95
90
85
80
8.8
9.0
9.2
9.4
9.6
9.8
10.0
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
R
L
= 1kΩ
R
L
= 10kΩ
PHASE (degrees)
MAX4493-14
MAX4493-13
A
V
= +1000V/V
270
225
180
135
90
45
0
-45
-90
-135
-180
120
PHASE
1k
10k
100k
1M
10M
-225
-270
100M
FREQUENCY (Hz)
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
EE
, V
CC
= +5V, V
EE
= -5V)
MAX4493-15
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
CC
, V
CC
= +2.25V, V
EE
= -2.25V)
MAX4493-16
LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
SWING (R
L
TO V
EE
, V
CC
= +2.25V, V
EE
= -2.25V)
110
LARGE-SIGNAL GAIN (dB)
105
100
95
90
85
80
75
70
R
L
= 1kΩ
R
L
= 10kΩ
R
L
= 100kΩ
MAX4493-17
120
115
LARGE-SIGNAL GAIN (dB)
110
105
100
95
90
85
80
8.8
9.0
9.2
9.4
9.6
9.8
R
L
= 1kΩ
R
L
= 10kΩ
R
L
= 100kΩ
120
115
110
LARGE-SIGNAL GAIN (dB)
105
100
95
90
85
80
75
70
R
L
= 1kΩ
R
L
= 10kΩ
R
L
= 100kΩ
115
10.0
3.4
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
3.6
3.8
4.0
4.2
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
4.4
3.4
3.6
3.8
4.0
4.2
TOTAL OUTPUT VOLTAGE SWING (V
P-P
)
4.4
MAX4494/MAX4495
CROSSTALK vs. FREQUENCY
MAX4493-18
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4493-19
0
-20
CROSSTALK (dB)
-40
-60
-80
-100
-120
10k
100k
1M
INPUT VOLTAGE
(2V/div)
OUTPUT VOLTAGE
(2V/div)
10M
10μs/div
FREQUENCY (Hz)
_______________________________________________________________________________________
5
无线连接
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
