19-1809; Rev 1; 1/01
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
General Description
The MAX4480–MAX4483 low-cost, general-purpose op
amps offer Rail-to-Rail
®
outputs, draw only 50µA of quies-
cent current, and operate from a single +2.5V to +5.5V
supply. For additional power conservation, the MAX4481
offers a low-power shutdown mode that reduces supply
current to 0.5µA (max) and puts the amplifier’s output in a
high-impedance state. These devices are unity-gain sta-
ble with capacitive loads up to 400pF. The MAX4480–
MAX4483 are specified to +125°C, making them suitable
for use in a variety of harsh environments, such as auto-
motive applications.
The MAX4480 is a single amplifier offered in a tiny 5-pin
SC70 package. The MAX4481 is a single amplifier with
a low-power shutdown mode that reduces supply cur-
rent to <0.5µA and comes in a 6-pin SC70 package.
The MAX4482 is a dual amplifier and comes in the
space-saving 8-pin SOT23 package. The MAX4483 is a
quad amplifier and comes in a 14-pin TSSOP package.
All devices are specified for operation across the -40°C
to +125°C automotive temperature range.
Features
o
Single +2.5V to +5.5V Supply Voltage Range
o
50µA Quiescent Current per Amplifier
o
0.5µA (max) Shutdown Mode (MAX4481)
o
Available in Space-Saving Packages
5-Pin SC70 (MAX4480)
6-Pin SC70 (MAX4481)
8-Pin SOT23 (MAX4482)
o
105dB A
VOL
with 5kΩ Load
o
0.005% THD with 100kΩ Load
o
Rail-to-Rail Output Voltage Swing
o
3.0mA of Sink and Source Load Current
o
Unity-Gain Stable up to C
LOAD
= 400pF
MAX4480–MAX4483
Ordering Information
PART
TEMP. RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
5 SC70
5 SOT23
6 SC70
6 SOT23
8 SOT23
8 SO
8
µMAX
14 SO
14 TSSOP
TOP
MARK
ABU
ADPJ
AAN
AAOS
AAEJ
—
—
—
—
Selector Guide
PART
MAX4480
MAX4481
MAX4482
MAX4483
NO. OF AMPLIFIERS
PER PACKAGE
1
1
2
4
SHUTDOWN
MODE
No
Yes
No
No
MAX4480AXK-T
MAX4480AUK-T
MAX4481AXT-T
MAX4481AUT-T
MAX4482
AKA-T
MAX4482ASA
MAX4482AUA
MAX4483ASD
MAX4483AUD
Applications
Single-Supply Zero-Crossing Detectors
Instruments and Terminals
Portable Communications
Electronic Ignition Modules
Infrared Receivers
Sensor Signal Detection
V
SS
2
IN- 3
4 OUT
V
SS
2
IN- 3
5 SHDN
4 OUT
IN+ 1
Pin Configurations
MAX4480
5 V
DD
IN+ 1
MAX4481
6 V
DD
SC70-5/SOT23-5
SC70-6/SOT23-6
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
MAX4480–MAX4483
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V
DD
to V
SS
) .........................-0.3V to +6V
All Other Pins ...................................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
Output Short-Circuit Duration
(OUT shorted to V
SS
or V
DD
)................................. Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ............. 247mW
6-Pin SC70 (derate 3.1mW/°C above +70°C) ..............245mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)............696mW
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 5.88mW/°C above +70°C)............... 471mW
14-Pin TSSOP (derate 9.03mW/°C above +70°C) .......727mW
14-Pin SO (derate 8.33mW/°C above +70°C)............. 667mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ........................................................150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
≥
1MΩ connected to V
DD
/2,
SHDN
= V
DD
(MAX4481 only),
T
A
= +25°C,
unless
otherwise noted.)
PARAMETER
Supply Voltage Range
Supply Current per Amplifier
Supply Current in Shutdown
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Resistance
Input Common-Mode Voltage
Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
SYMBOL
V
DD
I
DD
I
SHDN
V
OS
I
B
I
OS
R
IN
V
CM
CMRR
PSRR
(Note 1)
(Note 1)
Differential or common mode
Inferred from CMRR test
V
SS
≤
V
CM
≤
V
DD
- 1.3V
2.5V
≤
V
DD
≤
5.5V
V
SS
+ 0.02V
≤
V
OUT
≤
V
DD
- 0.03V
V
SS
+ 0.10V
≤
V
OUT
≤
V
DD
- 0.20V
Specified as
V
DD
- V
OUT
Specified as
V
OUT
- V
SS
Sourcing
Sinking
Device in shutdown mode,
SHDN
= V
SS
,
V
SS
< V
OUT
< V
CC
(MAX4481 only)
MAX4481 only
MAX4481 only
SHDN
= V
DD
or V
SS
(MAX4481 only)
0.7
✕
V
DD
±0.001
±1
140
±500
R
L
= 100kΩ
R
L
= 5kΩ
R
L
= 100kΩ
R
L
= 5kΩ
R
L
= 100kΩ
R
L
= 5kΩ
94
V
SS
71
82
86
92
110
dB
105
4
80
1
8
3
17
±0.01
±0.1
30
150
mV
mV
mA
µA
V
V
nA
kHz
V
DD
= 2.5V
V
DD
= 5.0V
SHDN
= V
SS
(MAX4481 only)
CONDITIONS
Inferred from PSRR test
MIN
2.5
45
50
0.05
±1
±0.1
±0.1
1000
V
DD
- 1.3
100
0.5
±5.5
±100
±100
TYP
MAX
5.5
UNITS
V
µA
µA
mV
pA
pA
MΩ
V
dB
dB
Large-Signal Voltage Gain
A
VOL
Output Voltage High
Output Voltage Low
Output Short-Circuit Current
V
OH
V
OL
I
SC
Shutdown Mode Output Leakage I
OUTSHDN
SHDN
Logic Low
SHDN
Logic High
SHDN
Input Current
Gain-Bandwidth Product
2
V
IL
V
IH
I
IL
, I
IH
GBW
0.3
✕
V
DD
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
≥
1MΩ connected to V
DD
/2,
SHDN
= V
DD
(MAX4481 only),
T
A
= +25°C,
unless
otherwise noted.)
PARAMETER
Phase Margin
Gain Margin
Slew Rate
Input Voltage Noise Density
Input Current Noise Density
Capacitive-Load Stability
Shutdown Delay Time
Enable Delay Time
Power-On Time
Input Capacitance
Total Harmonic Distortion
Settling Time to 0.1%
SR
e
n
i
n
C
LOAD
t
SHDN
t
EN
t
ON
C
IN
THD
t
S
f = 1kHz, V
OUT
=
2Vp-p, A
V
= +1V/V
V
OUT
= 2V step
R
L
= 100kΩ
f = 10kHz
f = 10kHz
A
V
= +1V/V
MAX4481 only
MAX4481 only
SYMBOL
φ
M
CONDITIONS
MIN
TYP
70
30
80
100
1
400
0.4
12
15
2.0
0.005
50
MAX
UNITS
degrees
dB
V/ms
nV/√Hz
fA/√Hz
pF
µs
µs
µs
pF
%
µs
MAX4480–MAX4483
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
≥
1MΩ connected to V
DD
/2,
SHDN
= V
DD
(MAX4481 only),
T
A
= -40°C to +125°C,
unless otherwise noted.) (Note 2)
PARAMETER
Supply Voltage Range
Supply Current per Amplifier
Supply Current in Shutdown
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Common-Mode Voltage
Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
SYMBOL
V
DD
I
DD
I
SHDN
V
OS
TC
VOS
I
B
I
OS
V
CM
CMRR
PSRR
(Note 1)
(Note 1)
Inferred from CMRR test
V
SS
≤
V
CM
≤
V
DD
- 1.4V
2.5V
≤
V
CC
≤
5.5V
Device in shutdown
mode,
SHDN
= V
SS
,
V
SS
< V
OUT
< V
CC
(MAX4481 only)
MAX4481 only
MAX4481 only
SHDN
= V
DD
or V
SS
(Note 1) (MAX4481 only)
V
SS
+ 0.1V
≤
V
OUT
≤
V
DD
- 0.20V, R
L
= 5kΩ
Specified as V
DD
- V
OUT
, R
L
= 5kΩ
84
200
0.7
✕
V
DD
1
-40°C to +85°C
+85°C to +125°C
V
SS
67
77
±0.5
µA
±2.5
0.3
✕
V
DD
V
V
µA
dB
mV
mV
±3
±100
±100
V
DD
- 1.4
SHDN
= V
SS
, (MAX4481 only)
CONDITIONS
Inferred from PSRR test
MIN
2.5
TYP
MAX
5.5
120
1.0
9
UNITS
V
µA
µA
mV
µV/°C
pA
pA
V
dB
dB
Shutdown Mode Output Leakage I
OUTSHDN
SHDN
Logic Low
SHDN
Logic High
SHDN
Input Current
Large-Signal Voltage Gain
Output Voltage High
V
IL
V
IH
I
IL,
I
IH
A
VOL
V
OH
50
Output Voltage Low
V
OL
Specified as V
OUT
- V
SS
, R
L
= 5kΩ
Note 1:
Guaranteed by design.
Note 2:
Specifications are 100% tested at T
A
= +25°C (exceptions noted). All temperature limits are guaranteed by design.
_______________________________________________________________________________________
3
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
MAX4480–MAX4483
Typical Operating Characteristics
(V
DD
= +5V, V
SS
= 0, V
CM
= V
DD
/2, V
SHDN
= 5V, R
L
≥
1MΩ connected to V
DD
/2, T
A
= +25°C, unless otherwise noted.)
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
1
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
1
MAX4480 toc01
GAIN AND PHASE
vs. FREQUENCY (C
L
= 400pF)
MAX4480 toc02
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4480 toc03
10
-10
-30
PSRR (dB)
-50
-70
-90
GAIN (dB)/PHASE (degrees)
GAIN (dB)/PHASE (degrees)
A
VCL
= +1000V/V
10
100
1k
10k
100k
1M
A
VCL
= +1000V/V
-110
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX4480 toc4
SUPPLY CURRENT vs. TEMPERATURE
MAX4480 toc05
MAX4481
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
V
SHDN
= V
SS
MAX4480 toc06
1000
60
58
56
SUPPLY CURRENT (µA)
54
52
50
48
46
44
42
100k
100
OUTPUT IMPEDANCE (Ω)
10k
SUPPLY CURRENT (pA)
10
1k
1
100
0.1
10
0.01
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
40
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
1
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
MAX4481
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
MAX4480 toc07
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX4480 toc08
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
R
L
= 5kΩ to V
DD
/2
90
V
DD
- V
OUT
(mV)
80
70
60
50
40
MAX4480 toc09
1000k
V
SHDN
= V
SS
V
OUT
= V
DD
/2
100k
1500
1000
500
100
I
LEAK
(pA)
V
OS
(µV)
10k
0
1k
-500
100
10
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
-1000
-1500
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics (continued)
(V
DD
= +5V, V
SS
= 0, V
CM
= V
DD
/2, V
SHDN
= 5V, R
L
≥
1MΩ connected to V
DD
/2, T
A
= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
MAX4480 toc10
MAX4480–MAX4483
COMMON-MODE REJECTION RATIO
vs. TEMPERATURE
MAX4480 toc11
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
125
120
115
R
L
= 5kΩ to V
DD
/2
MAX4480 toc12
11
R
L
= 5kΩ to V
DD
/2
10
9
V
OUT
- V
SS
(mV)
-80
130
-82
CMRR (dB)
8
7
6
GAIN (dB)
-40 -20
0
20
40
60
80
100 120
-84
110
105
100
95
-86
-88
5
4
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
-90
TEMPERATURE (°C)
90
85
80
0.5
1.0
1.5
2.0
2.5
V
OUT
(V)
3.0
3.5
4.0
4.5
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MAX4480 toc13
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
MAX4480 toc14
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
R
L
= 5kΩ
V
OUT
= 2Vp-p
A
V
= +1
BW = 30kHz
MAX4480 toc15
110
2.0
1.9
1.8
1.7
V
DD
(MIN)
1.6
1.5
1.4
1.3
1.2
1.1
R
L
= 5kΩ to V
DD
/2
100
105
GAIN (dB)
10
THD + N (%)
1
100
0.1
95
0.01
90
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
1.0
-40 -20
0
20
40
60
80 100 120
TEMPERATURE (°C)
0.001
10
100
1k
FREQUENCY (Hz)
10k
100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4480 toc16
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
MAX4480 toc17
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
R
L
= 100kΩ
f = 1kHz
BW = 22kHz
MAX4480 toc18
100
R
L
= 100kΩ
V
OUT
= 2Vp-p
A
V
= +1
BW = 30kHz
100
R
L
= 5kΩ
f = 1kHz
BW = 22kHz
100
10
THD + N (%)
10
THD + N (%)
10
THD + N (%)
1
1
1
0.1
0.1
0.1
0.01
0.001
10
100
1k
FREQUENCY (Hz)
10k
100k
0.01
0.01
0.001
0
1
V
IN
(Vp-p)
2
3
0.001
0
0.5
1.0
1.5
V
IN
(Vp-p)
2.0
2.5
3.0
_______________________________________________________________________________________
5