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MAX4402AUA-T 中文资料
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19-1599; Rev 3; 8/01
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
General Description
Features
The MAX4400–MAX4403 low-cost, general-purpose opamps offer Rail-to-Rail?outputs,
draw only 320?A of qui-oSingle
and operate from a single
2.5V to
2.5V to
5.5V Supply Voltage Rangeescent current,
5.5Vo320?A Quiescent Current per Amplifiersupply.
For additional power conservation, the MAX4401offers a low-power shutdown mode that
reduces supplyo1?A (max) Shutdown Mode (MAX4401)current to 1?A (max) and puts the
amplifier’s output in aoAvailable in Space-Saving Packages
high-impedance state. These devices deliver ±1.4mA of5-Pin SC70 (MAX4400)output
current and are unity-gain stable with a 1MHz gain-6-Pin SC70 (MAX4401)bandwidth
product driving capacitive loads up to 400pF.The MAX4400–MAX4403 are specified to
125°C, making8-Pin SOT23 (MAX4402)them suitable for use in a variety of harsh
environments,o110dB AVhttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmlOLwith
2k?Loadsuch as automotive applications.
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o0.015% THD with 2k?LoadThe MAX4400 single amplifier is available in ultra-small
5-pin SC70 and space-saving 5-pin SOT23 packages.oRail-to-Rail Output Voltage
SwingThe single MAX4401 includes the shutdown feature and iso1.4mA of Sink and Source
Load Currentavailable in a 6-pin SC70. The MAX4402 is a dual amplifieravailable in
8-pin SOT23 and SO packages. TheoUnity-Gain Stable up to CLOAD= 400pFMAX4403 quad
amplifier is packaged in a 14-pin TSSOPoGround-Sensing Inputs
or SO.
Applications
Ordering Information
Single-Supply,
Zero-Crossing
DetectorsInstruments
and
TerminalsPortable
CommunicationsElectronic Ignition ModulesInfrared ReceiversSensor Signal Detection
Selector Guide
Pin Configurations
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
______________________________________________________http://doc.wendoc.com/bee1
d941380674d2fd6eb82cb.html__________Maxim Integrated Products1
For pricing, delivery, and ordering information,please contact Maxim/Dallas
Direct!at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX4400–MAX4403
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Single/Dual/Quad, Low-Cost, Single-Supply,Rail-to-Rail Op Amps with Shutdown
MAX4400–MAX4403
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (VDDto VSS).........................-0.3V to
6VAll Other
Pins...................................(VSS-
0.3V)Output
0.3V)
to
(VDD
Short-Circuit Duration
OUT Shorted to VSSor VDD...................................ContinuousContinuous
Power Dissipation (TA=
70°C)
5-Pin SC70 (derate 2.5mW/°C above
7.1mW/°C above
70°C).............200mW5-Pin SOT23 (derate
70°C)............571mW6-Pin SC70 (derate 2.27mW/°C above
70°C)............181mW
8-Pin SOT23 (derate 7.52mW/°C above
4.5mW/°C
abovhttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmle
70°C)............362mW8-Pin
SO
70°C)...............471mW14-Pin
70°C)......667mW14-Pin
70°C)..........602mW8-Pin ?MAX (derate
SO
(derate
TSSOP
5.88mW/°C
(derate
(derate
8.33mW/°C
8.33mW/°C
70°C).............667mWOperating
Range.........................-40°C
above
above
above
Temperature
to
Range.............................-65°C to
125°CStorage
Temperature
150°CLead 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 functionaloperation of the
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device at these or any other conditions beyond those indicated in the operational
sections of the specifications is not implied. Exposure toabsolute maximum rating
conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD=
5V, VSS= 0, VCM= 0, VOUT= VDD/2, RL=∞connected to VDD/2, SHDN= VDD(MAX4401
only), TA=
25http://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html°C, unless
otherwise noted.)
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(VDD=
5V, VSS= 0, VCM= 0, VOUT= VDD/2, RL=∞connected to VDD/2, SHDN= VDD(MAX4401
only), TA=
25°C, unless otherwise noted.)
MAX4400–MAX4403
ELECTRICAL CHARACTERISTICS
(VDD=
5V, VSS= 0, VCM= 0, VOUT= VDD/2, RL=∞connected to VDD/2,TA= -40°C to
125°C,
unless otherwise noted.) (Note 3)
Note 1:Shutdown mode is only available in the 6-pin SC70 single op amp (MAX4401).Note
2:Guaranteed by design.
Note 3:Specifications are 100% tested at TA=
25°C (exceptions noted). All
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temperature limits are guaranteed by design.
________________________________________________________________________________
_______
3
Single/Dual/Quad,
Low-Cost,
Single-Supply,Rail-to-Rail
Op
Amps
with
ShutdownMAX4400–MAX4http://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html403
Typical Operating Characteristics
(VDD=
5V, VSS= 0, VCM= VDD/2, VSHDN= 5V, RL=∞connected to VDD/2, TA=
otherwise noted.)
GAIN AND PHASEvs. FREQUENCY (NO LOAD)
806040200-20-40-60-80-100-120-140-160-180
1
806040200-20-40-60-80-100-120-140-160-180
1
GAIN AND PHASE
vs. FREQUENCY (CL = 400pF)
POWER-SUPPLY REJECTION RATIO
25°C, unless
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vs. FREQUENCY
MAX4400 toc03
10-10-30PSRR (dB)-50-70-90
GAIN (dB)/PHASE (degrees)
GAIN (dB)/PHASE (degrees)
10
100
1k
10k100k
1M
10M
-110
10
100
1k
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10k100k
1M
10M
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
OUTPUT IMPEDANCEvs. FREQUENCY
Mhttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmlAX4400 to4
SUPPLY CURRENT vs. TEMPERATURE
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MAX4400 toc05
MAX4401
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
1000100OUTPUT IMPEDANCE (?)
1010.10.010.001
10
100
1k
10k
100k
500
100k
SUPPLY CURRENT (?A)
SUPPLY CURRENT (pA)
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-40-20
20
40
60
80
100120
450
10k
1k
400
100
350
10
300
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1M
FREQUENCY (Hz)
TEMPERATURE (°C)
1-40-20
20
40
60
80
100120
TEMPERATURE (°C)
MAX4401
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
INPUT OFFSET VOLTAGEvs. TEMPERATURE
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OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
1M
15001000500VOS http://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html(?V)
706050VDD - VOH (mV)
40
3020100
1kILEAK (pA)
10
-500-1000
0.1
-40-20
20
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40
60
80
100120
TEMPERATURE (°C)
-1500
-40-20
20
40
60
80
100120
TEMPERATURE (°C)
-40-20020406080100120
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TEMPERATURE (°C)
4_______________________________________________________________________________
________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
(VDD=
5V, VSS= 0, VCM= VDD/2, VSHDN= 5V, RL=∞connected to VDD/2, TA=
otherwise noted.)
OUTPUT VOLTAGE SWING LOW
COMMON-MODE REJECTION RATIO
LARGE-SIGNAL GAINvs. TEMPERATURE
vs. TEMPERATURE
vs. OUTPUT VOLTAGE
50
-601
://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmlpar140
1cot 0044XA12040M-70100)
25°C, unless
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Vm30
)
B)
(dB E(d (80ER VRN I- M-80
AL20
CGO60V4010
-90
20
0-100
0-40-20
20
40
60
80
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100120
-40-20
20
40
60
80
100120
0.5
1.0
1.5
2.0
2.5
3.0
3.5
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4.0
4.5
TEMPERATURE (°C)
TEMPERATURE (°C)
VOUT (V)
LARGE-SIGNAL GAINMINIMUM OPERATING VOLTAGE
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE
vs. TEMPERATURE
vs. FREQUENCY
1403.04
10.1
cot 0135044XAM1302.5
0.01
)
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B125)
)dV(%( ( N120N2.0
IMDIAVHGT1150.001
1101.5
105100
1.0
0.0001
-40-http://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html20
20
40
60
80
100120
-40-20
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20
40
60
80
100120
10
1001k10k100k
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION TOTAL HARMONIC DISTORTIONvs. FREQUENCY
PLUS NOISE vs. INPUT AMPLITUDE
PLUS NOISE vs. INPUT AMPLITUDE
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0.01
10
1
)
)
)
%%%( 0.1( (NN 0.001
D
HDDTHHT0.01T
0.0001
10
100
1k10k
100k
0.5
0.0010.0001
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1.0
1.52.0
2.5
3.0
0.5
1.0
1.52.0
2.5
3.0
FREQUENCY (Hz)
VIN (Vp-p)
VIN (Vp-p)
________________________________________http://doc.wendoc.com/bee1d941380674d2fd
6eb82cb.html_______________________________________________5
MAX4400–MAX4403
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Single/Dual/Quad, Low-Cost, Single-Supply,Rail-to-Rail Op Amps with Shutdown03
(VDD=
5V, VSS= 0, VCM= VDD/2, VSHDN= 5V, RL=∞connected to VDD/2, TA=
otherwise noted.)
44XAM–0044XAM6NONINVERTING SMALL-SIGNAL
CAPACITIVE-LOAD STABILITY
TRANSIENT RESPONSE
2000
1500)
IN
F
p( DAOL E1000
50mV/div
VITICAPAC500
OUT
01k
25°C, unless
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10k
100k
2?s/div
RESISTIVE LOAD (?)
NONINVERTING LARGE-SIGNAL
PERCENT OVERSHOOTTRANSIENT RESPONSE
vs. CAPACITIVE LOAD
30
25IN
)
( TO2V/div
OHS15REVO10OUT
50
10?s/div
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100
200
300400
500
600
CLOAD (pF)
MAX4402/MAX4403
://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmlarCHANNEL-TO-CHANNEL ISOLATION
SUPPLY CURRENT vs. SUPPLY VOLTAGE
vs. FREQUENCY
4505
2130
cot 400)
00B4d4(120 XNAMOI)
350ATA110?L( T300ONSIE 100LRER250NUNC200A90 YHLCP-P150
OT80U-SLE100NN70A50HC60050
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123456
0.01
0.1
1
10
100
1000
SUPPLY VOLTAGE (V)FREQUENCY (kHz)
________________________________________________________________________________
_______
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Pin Description
Detailed Description
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Rail-to-Rail Output Stage
The MAX4400–MAX4403 can drive a 2k?load and stilltypically swing within 55mV of the
supply rails. Figure 1shows the output voltage swing of the MAX4400 config-ured with
AV =
10V/V.
Driving Capacitive Loads
Driving a chttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmlapacitive load can
cause instability in manyop amps, especially those with low quiescent current.The
MAX4400–MAX4403 are unity-gain stable for arange of capacitive loads to above 400pF.
Figure 2shows the response of the MAX4400 with an excessivecapacitive load. Adding
a series resistor between theoutput and the load capacitor (Figure 3) improves the
Figure 1. Rail-to-Rail Output Operation
________________________________________________________________________________
_______
7
MAX4400–MAX4403
Single/Dual/Quad,
Low-Cost,
Single-Supply,Rail-to-Rail
Op
Amps
with
ShutdownMAX4400–MAX4403
circuit’s response by isolating the load capacitancefrom the op amp’s output.
Power Supplies and Layout
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The MAX4400–MAX4403 operate from a single
2.5Vto
5.5V power supply. Bypass the
power supply with a0.1?F capacitor to ground.
Good
layout
techniques
optimize
performance
byhttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.htmldecreasing the amount of
stray capacitance at the opamp’s inputs and outputs. To decrease stray capaci-tance,
minimize trace lengths by placing external com-ponents close to the op amp’s pins.
Applications Information
Shutdown Mode
The MAX4401 features a low-power shutdown mode.When SHDNgoes low, the supply current
drops to20pA (typ) and the output enters a high-impedancestate. Pull SHDNhigh to
enable the amplifier. Do notleave SHDNfloating. Figure 4 shows the shutdownwaveform.
Power-Up
The MAX4400–MAX4403 outputs typically settle within5?s after power-up. Figure 5
shows the output voltageon power-up and power-down.
Chip Information
MAX4400/MAX4401
TRANSISTOR
COUNT:
101MAX4402
TRANSISTOR
COUNT:
202MAX4403
TRANSISTOR COUNT: 404
8_______________________________________________________________________________
________
Single/Dual/Quad,
Low-Cost,
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Single-Supplyhttp://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html,
Rail-to-Rail Op Amps with Shutdown
Pin Configurations (continued)
Package Information
MAX4400–MAX4403
Single/Dual/Quad,
Low-Cost,
Single-Supply,Rail-to-Rail
Op
Amps
with
ShutdownMAX4400–MAX4403
Package Information (continued)
10______________________________________________________________________________
________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Package Information (continued)
________________________________________________________________________________
______11
MAX4400–MAX4403
Single/Dual/Quad,
Low-Cost,
Single-Supply,Rail-to-Rail
Op
Amps
with
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ShutdownMAX4400–MAX4403
Package Information (continued)
Maxim cannot assume responsibility for use of any circuitry other than circuitry
entirely
embodied
in
a
Maxim
product.
No
circuit
areimplied.http://doc.wendoc.com/bee1d941380674d2fd6eb82cb.html
patent
Maxim
licenses
reserves
the right to change the circuitry and specifications without notice at any time.
12____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale,
CA
94086 408-737-7600?2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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