MAX4402ASA [MAXIM]
Operational Amplifier ; 运算放大器\n型号: | MAX4402ASA |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Operational Amplifier
|
文件: | 总12页 (文件大小:375K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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 op
amps offer Rail-to-Rail® outputs, draw only 320µA of qui-
escent current, and operate from a single +2.5V to +5.5V
supply. For additional power conservation, the MAX4401
offers a low-power shutdown mode that reduces supply
current to 1µA (max) and puts the amplifier’s output in a
high-impedance state. These devices deliver 1.4mA of
output current and are unity-gain stable with a 1MHz gain-
bandwidth product driving capacitive loads up to 400pF.
The MAX4400–MAX4403 are specified to +125°C, making
them suitable for use in a variety of harsh environments,
such as automotive applications.
o Single +2.5V to +5.5V Supply Voltage Range
o 320µA Quiescent Current per Amplifier
o 1µA (max) Shutdown Mode (MAX4401)
o Available in Space-Saving Packages
5-Pin SC70 (MAX4400)
6-Pin SC70 (MAX4401)
8-Pin SOT23 (MAX4402)
o 110dB A
with 2k Load
VOL
o 0.015% THD with 2k Load
The MAX4400 single amplifier is available in ultra-small
5-pin SC70 and space-saving 5-pin SOT23 packages.
The single MAX4401 includes the shutdown feature and is
available in a 6-pin SC70. The MAX4402 is a dual amplifier
available in 8-pin SOT23 and SO packages. The
MAX4403 quad amplifier is packaged in a 14-pin TSSOP
or SO.
o Rail-to-Rail Output Voltage Swing
o 1.4mA of Sink and Source Load Current
o Unity-Gain Stable up to C
o Ground-Sensing Inputs
= 400pF
LOAD
Applications
Ordering Information
Single-Supply, Zero-Crossing Detectors
Instruments and Terminals
Portable Communications
Electronic Ignition Modules
Infrared Receivers
PIN-
PACKAGE
TOP
MARK
PART
TEMP RANGE
MAX4400AXK-T -40°C to +125°C 5 SC70-5
MAX4400AUK-T -40°C to +125°C 5 SOT23-5
MAX4401AXT-T -40°C to +125°C 6 SC70-6
MAX4402AKA-T -40°C to +125°C 8 SOT23-8
AAG
ADNP
AAB
AADI
—
Sensor Signal Detection
MAX4402AUA
MAX4402ASA
MAX4403AUD
MAX4403ASD
-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
—
—
—
Selector Guide
Pin Configurations
NO. OF AMPLIFIERS
PER PACKAGE
SHUTDOWN
MODE
PART
MAX4400
MAX4401
MAX4402
MAX4403
1
1
2
4
No
Yes
No
MAX4400
MAX4401
IN+
V
IN+
V
DD
1
2
3
5
4
1
2
3
6
5
4
DD
V
V
SHDN
OUT
SS
SS
No
OUT
IN-
IN-
SC70-5/SOT23-5
SC70-6
Pin Configurations continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products
1
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.
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V
to V ).........................-0.3V to +6V
8-Pin SOT23 (derate 7.52mW/°C above +70°C)..........602mW
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 8.33mW/°C above +70°C) ...... 667mW
14-Pin SO (derate 8.33mW/°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
DD
SS
All Other Pins ...................................(V - 0.3V) to (V
+ 0.3V)
SS
DD
Output Short-Circuit Duration
OUT Shorted to V or V ................................... Continuous
SS
DD
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70 (derate 2.5mW/°C above +70°C)............. 200mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
6-Pin SC70 (derate 2.27mW/°C above +70°C)............181mW
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
= +5V, V = 0, V
= 0, V
= V /2, R
=
connected to V /2, SHDN = V
(MAX4401 only), T = +25°C, unless
DD A
DD
SS
CM
OUT
DD
L
DD
otherwise noted.)
PARAMETER
Supply Voltage Range
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
DD
Inferred from PSRR test
2.5
5.5
V
V
= 2.5V
= 5.0V
320
410
DD
DD
Supply Current per Amplifier
Supply Current in Shutdown
Input Offset Voltage
I
µA
µA
mV
DD
V
700
1
I
0.00002
0.8
SHDN = V (Note 1)
SHDN
SS
MAX4400/MAX4401
MAX4402/MAX4403
(Note 2)
4.5
5.5
100
100
V
OS
1.0
Input Bias Current
Input Offset Current
Input Resistance
I
B
0.1
pA
pA
G
I
(Note 2)
0.1
OS
R
Differential or common mode
1000
IN
Input Common-Mode Voltage
Range
V
CM
Inferred from CMRR test
V
SS
V
DD
- 1.4
V
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
CMRR
PSRR
V
V
V - 1.4V
DD
68
84
100
120
110
3
dB
dB
SS
CM
2.5V
V
5.5V
78
DD
R = 100k
L
V
V
+ 0.3V
SS
OUT
Large-Signal Voltage Gain
Output Voltage High
A
dB
mV
mV
mA
µA
VOL
V
DD
- 0.3V
R = 2k
L
90
R = 100k
L
Specified as
|V - V
V
OH
|
OH
DD
R = 2k
L
55
2
200
75
R = 100k
L
Specified as
|V - V
Output Voltage Low
V
OL
|
OL
SS
R = 2k
L
30
12
30
Sourcing
Sinking
Output Short-Circuit Current
Shutdown Mode Output
Leakage
Device in shutdown mode, SHDN = V
,
SS
I
1.0
OUTSHDN
V
SS
< V
< V
(Note 1)
OUT
CC
✕
V
(Note 1)
(Note 1)
SHDN = V
0.3
0.001
V
V
V
SHDN Logic Low
SHDN Logic High
SHDN Input Current
Gain-Bandwidth Product
Phase Margin
IL
DD
✕
V
IH
0.7
V
DD
I , I
IL IH
500
nA
or V (Note 1)
DD
SS
GBW
M
800
70
20
1
kHz
degrees
dB
Gain Margin
Slew Rate
SR
V/µs
2
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(V
= +5V, V = 0, V
= 0, V
= V /2, R
=
connected to V /2, SHDN = V
(MAX4401 only), T = +25°C, unless
DD A
DD
SS
CM
OUT
DD
L
DD
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
36
MAX
UNITS
nV/ Hz
fA/ Hz
pF
Input Voltage Noise Density
Input Current Noise Density
Capacitive-Load Stability
Shutdown Delay Time
Enable Delay Time
e
n
f = 10kHz
f = 10kHz
i
n
1
C
A = +1V/V
V
400
0.4
6
LOAD
SHDN
t
(Note 1)
(Note 1)
µs
t
µs
EN
Power-On Time
t
5
µs
ON
Input Capacitance
C
2.5
0.009
0.015
7
pF
IN
R = 100k
L
f = 10kHz, V
=
OUT
Total Harmonic Distortion
THD
%
2Vp-p, A = +1V/V
V
R = 2k
L
Settling Time to 0.1%
t
S
V
OUT
= 2V step
µs
ELECTRICAL CHARACTERISTICS
(V
= +5V, V = 0, V
= 0, V
= V /2, R =
connected to V /2, T = -40°C to +125°C, unless otherwise noted.) (Note 3)
DD A
DD
SS
CM
OUT
DD
L
PARAMETER
Supply Voltage Range
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
UNITS
V
V
Inferred from PSRR test
2.5
DD
DD
Supply Current per Amplifier
I
800
6.5
µA
MAX4400/MAX4401
MAX4402/MAX4403
Input Offset Voltage
V
OS
mV
8.0
Input Offset Voltage Drift
Input Bias Current
TC
1
µV/°C
pA
VOS
I
(Note 2)
(Note 2)
100
100
B
Input Offset Current
I
pA
OS
Input Common-Mode Voltage
Range
V
CM
Inferred from CMRR test
V
SS
V
DD
- 1.5
V
V
V
V
V
V
V
- 1.5V
65
SS
CM
DD
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
CMRR
PSRR
dB
dB
- 1.0V T = -20°C to +125°C
50
74
SS
CM
DD
A
2.5V
V
5.5V
CC
Device in shutdown
T
T
= -40°C to +85°C
= +85°C to +125°C
1.0
5.0
A
Shutdown Mode Output
Leakage
mode, SHDN = V
,
SS
I
µA
OUTSHDN
V
SS
< V < V
OUT DD
A
(Note 1)
✕
V
(Note 1)
(Note 1)
SHDN = V
0.3
V
V
SHDN Logic Low
IL
DD
✕
V
IH
0.7
V
DD
V
SHDN Logic High
I
I
1000
nA
dB
mV
mV
SHDN Input Current
Large-Signal Voltage Gain
Output Voltage High
Output Voltage Low
or V (Notes 1, 2)
SS
IL, IH
DD
A
VOL
V
SS
+ 0.3V
V
OUT
V
DD
- 0.3V, R = 2k
85
L
V
OH
Specified as |V
- V |, R = 2k
250
100
DD
OH
L
V
OL
Specified as |V - V |, R = 2k
SS OL L
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 T = +25°C (exceptions noted). All temperature limits are guaranteed by design.
A
_______________________________________________________________________________________
3
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics
(V
= +5V, V = 0, V
= V /2, V
= 5V, R =
L
connected to V /2, T = +25°C, unless otherwise noted.)
DD A
DD
SS
CM
DD
SHDN
GAIN AND PHASE
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
vs. FREQUENCY (C = 400pF)
L
80
60
40
80
60
40
10
-10
20
20
0
0
-30
-20
-40
-60
-80
-100
-120
-140
-160
-20
-40
-60
-80
-100
-120
-140
-160
-180
-50
-70
-90
A
= +1000V/V
A
= +1000V/V
VCL
VCL
-180
-110
1
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
1
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
MAX4401
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
OUTPUT IMPEDANCE
vs. FREQUENCY
SUPPLY CURRENT vs. TEMPERATURE
1000
100
10
500
450
400
350
300
100k
10k
1k
V
= V
SS
SHDN
1
100
10
0.1
0.01
0.001
1
10
100
1k
10k
100k
1M
-40 -20
0
20 40 60 80 100 120
TEMPERATURE ( C)
-40 -20
0
20 40 60 80 100 120
TEMPERATURE ( C)
FREQUENCY (Hz)
MAX4401
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
1M
1k
1500
1000
500
70
60
50
40
30
20
10
0
V
V
= V
SS
OUT = DD/2
SHDN
R = 2k to V /2
L
DD
V
0
10
-500
-1000
-1500
0.1
-40 -20
0
20 40 60 80 100 120
TEMPERATURE ( C)
-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
= +5V, V = 0, V
= V /2, V
= 5V, R =
connected to V /2, T = +25°C, unless otherwise noted.)
DD A
DD
SS
CM
DD
SHDN
L
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
COMMON-MODE REJECTION RATIO
vs. TEMPERATURE
140
120
100
80
50
-60
-70
R = 2k
L
R = 2k to V /2
L
DD
40
30
20
10
0
-80
60
40
-90
20
0
-100
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
(V)
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
-40 -20
0
20 40 60 80 100 120
TEMPERATURE ( C)
V
OUT
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
LARGE-SIGNAL GAIN
vs. TEMPERATURE
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
0.1
0.01
3.0
2.5
2.0
1.5
1.0
140
135
130
125
120
115
110
105
100
R = 2k
L
R = 2k
L
V
A
= 2Vp-p
OUT
= +1
V
0.001
0.0001
-40 -20
0
20 40 60 80 100 120
-40 -20
0
20 40 60 80 100 120
10
100
1k
10k
100k
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
0.01
10
1
10
1
R = 100k
L
R = 2k
L
R = 100k
L
f = 10kHz
f = 10kHz
V
A
= 2Vp-p
OUT
BW = 20kHz
BW = 20kHz
= +1
V
0.1
0.1
0.001
0.01
0.001
0.0001
0.01
0.001
0.0001
0.0001
0
0.5
1.0
1.5
2.0
2.5
3.0
10
100
1k
10k
100k
0
0.5
1.0
1.5
2.0
2.5
3.0
V
(Vp-p)
FREQUENCY (Hz)
V
(Vp-p)
IN
IN
_______________________________________________________________________________________
5
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics (continued)
(V
= +5V, V = 0, V
SS
= V /2, V
= 5V, R =
connected to V /2, T = +25°C, unless otherwise noted.)
DD A
DD
CM
DD
SHDN
L
NONINVERTING SMALL-SIGNAL
TRANSIENT RESPONSE
CAPACITIVE-LOAD STABILITY
2000
1500
1000
500
A
= +1V/V
V
A
= +1
V
A
R = 2k
L
T
= +25°C
IN
UNSTABLE
REGION
50mV/div
STABLE
REGION
OUT
0
1k
10k
100k
2 s/div
RESISTIVE LOAD (
)
NONINVERTING LARGE-SIGNAL
TRANSIENT RESPONSE
PERCENT OVERSHOOT
vs. CAPACITIVE LOAD
30
A
= +1V/V
V
NEGATIVE OVERSHOOT
R = 2k
L
25
20
15
10
5
IN
2V/div
OUT
POSITIVE OVERSHOOT
300 400 500
(pF)
0
10 s/div
0
100
200
600
C
LOAD
MAX4402/MAX4403
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY
SUPPLY CURRENT vs. SUPPLY VOLTAGE
450
400
350
300
250
200
150
100
50
130
V
= V /2
DD
OUT
120
110
100
90
80
70
60
50
0
0
1
2
3
4
5
6
0.1
1
0.01
10
100
1000
SUPPLY VOLTAGE (V)
FREQUENCY (kHz)
6
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Pin Description
PIN
NAME
FUNCTION
MAX4400
MAX4401
MAX4402
MAX4403
1
1
—
3
—
3
IN+
Noninverting Amplifier Input
—
—
—
—
—
—
—
—
INA+
INB+
INC+
IND+
Noninverting Amplifier Input A
Noninverting Amplifier Input B
Noninverting Amplifier Input C
Noninverting Amplifier Input D
5
5
—
—
10
12
Negative Supply. Connect to ground for single-
supply operation
2
2
4
11
V
SS
3
3
—
2
—
2
IN-
Inverting Amplifier Input
Inverting Amplifier Input A
Inverting Amplifier Input B
Inverting Amplifier Input C
Inverting Amplifier Input D
Amplifier Output
—
—
—
—
4
—
—
—
—
4
INA-
6
6
INB-
—
—
—
1
9
INC-
13
—
1
IND-
OUT
—
—
—
—
5
—
—
—
—
6
OUTA
OUTB
OUTC
OUTD
Amplifier Output A
7
7
Amplifier Output B
—
—
8
8
Amplifier Output C
14
4
Amplifier Output D
V
DD
Positive Supply
Active-Low Shutdown Input. Connect to V
normal operation. Do not leave floating.
for
DD
—
5
—
—
SHDN
Detailed Description
Rail-to-Rail Output Stage
The MAX4400–MAX4403 can drive a 2k load and still
typically swing within 55mV of the supply rails. Figure 1
shows the output voltage swing of the MAX4400 config-
ured with A = +10V/V.
V
1V/div
Driving Capacitive Loads
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4400–MAX4403 are unity-gain stable for a
range of capacitive loads to above 400pF. Figure 2
shows the response of the MAX4400 with an excessive
capacitive load. Adding a series resistor between the
output and the load capacitor (Figure 3) improves the
100µs/div
Figure 1. Rail-to-Rail Output Operation
_______________________________________________________________________________________
7
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
IN
R
ISO
50mV/div
OUT
C
L
MAX4400
MAX4401
MAX4402
MAX4403
2 s/div
Figure 3. Capacitive-Load-Driving Circuit
Figure 2. Small-Signal Transient Response with Excessive
Capacitive Load
SHDN
V
DD
2V/div
2V/div
OUT
OUT
1V/div
R = 10M TO GND
L
C = 25pF
L
10 s/div
400 s/div
Figure 5. Power-Up/Power-Down Waveform
Figure 4. Shutdown Waveform
circuit’s response by isolating the load capacitance
from the op amp’s output.
Power Supplies and Layout
The MAX4400–MAX4403 operate from a single +2.5V
to +5.5V power supply. Bypass the power supply with a
0.1µF capacitor to ground.
Applications Information
Good layout techniques optimize performance by
decreasing the amount of stray capacitance at the op
amp’s inputs and outputs. To decrease stray capaci-
tance, minimize trace lengths by placing external com-
ponents close to the op amp’s pins.
Shutdown Mode
The MAX4401 features a low-power shutdown mode.
When SHDN goes low, the supply current drops to
20pA (typ) and the output enters a high-impedance
state. Pull SHDN high to enable the amplifier. Do not
leave SHDN floating. Figure 4 shows the shutdown
waveform.
Chip Information
Power-Up
The MAX4400–MAX4403 outputs typically settle within
5µs after power-up. Figure 5 shows the output voltage
on power-up and power-down.
MAX4400/MAX4401 TRANSISTOR COUNT: 101
MAX4402 TRANSISTOR COUNT: 202
MAX4403 TRANSISTOR COUNT: 404
8
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Pin Configurations (continued)
MAX4403
OUTA
INA-
1
2
3
4
5
6
7
OUTD
IND-
14
13
12
MAX4402
OUTA
INA-
V
DD
1
2
3
4
8
7
INA+
IND+
OUTB
INB-
V
11 V
SS
DD
INA+
6
5
INB+
INB-
10 INC+
INB+
V
SS
9
8
INC-
SOT23-8/SO/ MAX
OUTC
OUTB
TSSOP/SO
Package Information
_______________________________________________________________________________________
9
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Package Information (continued)
10 ______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Package Information (continued)
______________________________________________________________________________________ 11
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Package Information (continued)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim 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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