MAX4331C/D [MAXIM]
Operational Amplifier, 1 Func, DIE-6;
| 型号： | MAX4331C/D |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Operational Amplifier, 1 Func, DIE-6 运算放大器 |
| 文件： | 总16页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1192; Rev 3; 2/98
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ 3MHz Gain-Bandwidth Product
The MAX4330–MAX4334 single/dual/quad op amps
combine a wide 3MHz bandwidth, low-power operation,
and excellent DC accuracy with Rail-to-Rail inputs and
outputs. These devices require only 245µA per amplifier,
and operate from either a single +2.3V to +6.5V supply
or dual ±1.15V to ±3.25V supplies. The input common-
♦ 245µA Quiescent Current per Amplifier
♦ Available in Space-Saving SOT23-5 Package
(MAX4330)
♦ +2.3V to +6.5V Single-Supply Operation
♦ Rail-to-Rail Input Common-Mode Voltage Range
♦ Rail-to-Rail Output Voltage Swing
♦ 250µV Offset Voltage
mode voltage range extends 250mV beyond V and
EE
V
CC
, and the outputs swing rail-to-rail. The MAX4331/
MAX4333 feature a shutdown mode in which the output
goes high impedance and the supply current decreases
to 9µA per amplifier.
Low-power operation combined with rail-to-rail input
common-mode range and output swing makes these
amplifiers ideal for portable/battery-powered equipment
a nd othe r low-volta g e , s ing le -s up p ly a p p lic a tions .
Although the minimum operating voltage is specified at
2.3V, these devices typically operate down to 2.0V. Low
offset voltage and high speed make these amplifiers
excellent choices for signal-conditioning stages in pre-
c is ion, low-volta g e d a ta -a c q uis ition s ys te ms . The
MAX4330 is available in the space-saving 5-pin SOT23
package, and the MAX4331/MAX4333 are offered in
a µMAX package.
♦ Low-Power, 9µA (per amp) Shutdown Mode
(MAX4331/MAX4333)
♦ No Phase Reversal for Overdriven Inputs
♦ Capable of Driving 2kΩ Loads
♦ Unity-Gain Stable
Ord e rin g In fo rm a t io n
PIN-
SOT
PART
TEMP. RANGE
PACKAGE TOP MARK
MAX4330EUK-T -40°C to +85°C 5 SOT23-5
ABAJ
—
Ap p lic a t io n s
Portable/Battery-Powered Equipment
Data-Acquisition Systems
MAX4331ESA
MAX4331EUA
MAX4332ESA
MAX4333ESD
MAX4333EUB
MAX4334ESD
-40°C to +85°C 8 SO
-40°C to +85°C 8 µMAX
-40°C to +85°C 8 SO
-40°C to +85°C 14 SO
-40°C to +85°C 10 µMAX
-40°C to +85°C 14 SO
—
—
—
Signal Conditioning
—
Low-Power, Low-Voltage Applications
—
S e le c t o r Gu id e
P in Co n fig u ra t io n s
NO. OF AMPS SHUTDOWN
PART
PIN-PACKAGE
PER PACKAGE
MODE
TOP VIEW
MAX4330
MAX4331
MAX4332
1
1
2
—
5-pin SOT23
8-pin SO/µMAX
8-pin SO
Yes
—
1
2
3
5
4
V
OUT
CC
10-pin µMAX,
14-pin SO
MAX4330
MAX4333
MAX4334
2
4
Yes
—
V
EE
14-pin SO
IN+
IN-
SOT23-5
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V to V .....................................................7V
10-Pin µMAX (derate 5.60mW/°C above +70°C) ..........444mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
Operating Temperature Ranges
MAX433_C/D .......................................................0°C to +70°C
MAX433_E_ _....................................................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
EE
IN_+, IN_-, SHDN Voltage................(V - 0.3V) to (V + 0.3V)
EE
CC
Output Short-Circuit Duration.................................... Continuous
(short to either supply)
Continuous Power Dissipation (T = +70°C)
A
5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
8-Pin µMAX (derate 4.10mW/°C above +70°C) ............330mW
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 = +2.3V to +6.5V, V = 0V, V = 0V, V
= (V / 2), R tied to (V / 2), V
≥ 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
OUT
CC
L
CC
PARAMETER
SYMBOL
CONDITIONS
MAX433_EUA/EUB
MAX4330EUK
MAX4331ESA
MIN
TYP
±0.65
±0.65
±0.25
±0.25
±0.25
±25
MAX
±1.5
±1.5
±0.6
±0.9
±1.0
±65
UNITS
V
V
EE
=
CM
Input Offset Voltage
V
OS
mV
to V
CC
0–MAX34
MAX4332ESA/MAX4333ESD
MAX4334ESD
Input Bias Current
Input Offset Current
I
B
V
EE
< V < V
CC
nA
nA
MΩ
kΩ
CM
I
OS
V
EE
< V < V
CC
±1
±12
CM
2.3
| V + - V - | < 1.4V
| V + - V - | > 2.5V
IN
IN
Differential Input Resistance
R
IN(DIFF)
2
IN
IN
Common-Mode Input
Voltage Range
-0.25
V
0.25
+
CC
V
CM
V
MAX433_EUA/EUB
MAX4330EUK
68
67
74
88
87
93
MAX4331ESA
V
5V
=
=
CC
dB
MAX4332ESA/
MAX4333ESD
71
93
-0.25V <
MAX4334ESD
MAX433_EUA/EUB
MAX4330EUK
MAX4331ESA
69
65
64
71
92
84
82
90
Common-Mode
Rejection Ratio
CMRR
V
CM
<
(V + 0.25V)
CC
V
CC
dB
2.3V
MAX4332ESA/
MAX4333ESD
69
90
MAX4334ESD
MAX433_EUA/EUB
MAX4330EUK
MAX4331ESA
66
76
76
79
89
88
88
92
Power-Supply Rejection Ratio
Output Resistance
PSSR
V
= 2.3V to 6.5V
dB
CC
MAX4332ESA/
MAX4333ESD
77
75
90
MAX4334ESD
90
R
A = 1
V
0.1
Ω
OUT
Off-Leakage Current
in Shutdown
I
V
SHDN
< 0.8V, V
= 0V to V
CC
±0.1
±2
µA
OUT(SHDN)
OUT
2
_______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
DC ELECTRICAL CHARACTERISTICS (continued)
(V = +2.3V to +6.5V, V = 0V, V = 0V, V
= (V / 2), R tied to (V / 2), V
≥ 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
OUT
CC
L
CC
PARAMETER
SYMBOL
CONDITIONS
= 0.2V to 2.1V, R = 100kΩ
MIN
93
TYP
112
90
MAX
UNITS
V
OUT
L
V
= 2.3V
= 5V
CC
V
= 0.35V to 1.95V, R = 2kΩ
78
OUT
L
Large-Signal Voltage Gain
A
VOL
dB
V
= 0.2V to 4.8V, R = 100kΩ
93
120
95
OUT
L
V
CC
V
= 0.35V to 4.65V, R = 2kΩ
83
OUT
L
V
- V
OH
8
30
30
CC
R = 100kΩ
L
V
OL
8
mV
Output Voltage Swing
V
OUT
V
- V
OH
100
70
175
150
CC
R = 2kΩ
L
V
OL
Output Short-Circuit Current
I
20
mA
V
SC
V
Low (shutdown mode)
High (normal mode)
0.8
IL
SHDN Logic Threshold
(Note 1)
V
2.0
2.3
IH
V
< V
< V
CC
±2
µA
V
SHDN Input Current
EE
SHDN
Operating Supply-Voltage
Range
V
6.5
CC
V
= 5V
275
245
17
325
290
25
Quiescent Supply Current
per Amplifier
CC
I
V
= V
= V / 2
µA
µA
CC
CM
OUT
CC
V
CC
= 2.3V
= 5V
V
CC
Shutdown Supply Current
per Amplifier
I
V
< 0.8V
SHDN
CC(SHDN)
V
CC
= 2.3V
9
14
DC ELECTRICAL CHARACTERISTICS
(V = +2.3V to +6.5V, V = 0V, V = 0V, V
= (V / 2), R tied to (V / 2), V
≥ 2V, T = -40°C to +85°C, unless
SHDN A
CC
EE
CM
OUT
CC
L
CC
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MAX433_EUA
MAX433_EUK/EUB
MAX4331ESA
MIN
TYP
MAX
±3.2
±3.8
±0.7
±1
UNITS
V
V
EE
=
CM
Input Offset Voltage
V
OS
mV
to V
CC
MAX4332ESA/MAX4333ESD
MAX4334ESD
±1
Offset-Voltage Tempco
Input Bias Current
∆V /∆T
±3
µV/°C
nA
OS
I
B
V
< V < V
CC
±115
±15
EE
CM
Input Offset Current
I
OS
V
EE
< V < V
CC
nA
CM
MAX433_EUA
72
71
76
MAX433_EUK/EUB
MAX4331ESA
Power-Supply Rejection Ratio
PSRR
V
CC
= 2.3V to 6.5V
dB
V
MAX4332ESA/
MAX4333ESD
73
MAX4334ESD
71
Common-Mode Input
Voltage Range
-0.15
V
0.15
+
CC
V
CM
_______________________________________________________________________________________
3
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
DC ELECTRICAL CHARACTERISTICS (continued)
(V = +2.3V to +6.5V, V = 0V, V = 0V, V
= (V / 2), R tied to (V / 2), V
≥ 2V, T = -40°C to +85°C, unless
SHDN A
CC
EE
CM
OUT
CC
L
CC
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
63
TYP
MAX
UNITS
MAX433_EUA/EUB
MAX4330EUK
62
MAX4331ESA
72
V
CC
=
5V
MAX4332ESA/
MAX4333ESD
69
-0.25V <
MAX4334ESD
MAX433_EUA/EUB
MAX4330EUK
MAX4331ESA
67
58
57
68
Common-Mode
Rejection Ratio
CMRR
V
CM
<
dB
(V + 0.25V)
CC
V
CC
=
2.3V
MAX4332ESA/
MAX4333ESD
66
65
0–MAX34
MAX4334ESD
Off-Leakage Current
in Shutdown
I
V
< 0.8V, V
= 0V to V
CC
±5
µA
dB
OUT(SHDN)
SHDN
OUT
V
= 0.2V to 2.1V, R = 100kΩ
90
70
90
74
OUT
L
V
CC
= 2.3V
V
OUT
= 0.35V to 1.95V, R = 2kΩ
L
Large-Signal Voltage Gain
Output Voltage Swing
A
VOL
V
= 0.2V to 4.8V, R = 100kΩ
L
OUT
V
= 5V
CC
V
OUT
= 0.35V to 4.65V, R = 2kΩ
L
V
V
40
40
CC - OH
R = 100kΩ
L
V
OL
V
OUT
mV
V
V
200
180
0.8
CC - OH
R = 2kΩ
L
V
OL
V
IL
Low (shutdown mode)
High (normal mode)
SHDN Logic Threshold
(Note 1)
V
µA
V
V
IH
2.0
2.3
V
EE
< V
< V
CC
±2
SHDN Input Current
SHDN
Operating Supply-Voltage
Range
V
CC
T
A
= -40°C to +85°C
6.5
V
= 5V
350
330
30
CC
Quiescent Supply Current
per Amplifier
I
V
= V
= V / 2
µA
µA
CC
CM
OUT
CC
V
CC
= 2.3V
= 5V
V
CC
Shutdown Supply Current
per Amplifier
I
V
SHDN
< 0.8V
CC(SHDN)
V
CC
= 2.3V
17
Note 1: SHDN logic thresholds are referenced to V
.
EE
Note 2: The MAX4330EUK is 100% tested at T = +25°C. All temperature limits are guaranteed by design.
A
4
_______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
AC ELECTRICAL CHARACTERISTICS
(V = +5V, V = 0V, V = 0V, V
= (V / 2), R = 10kΩ to (V / 2), V
≥ 2V, C = 15pF, T = +25°C, unless
SHDN L A
CC
EE
CM
OUT
CC
L
CC
otherwise noted.)
PARAMETER
SYMBOL
GBWP
FPBW
SR
CONDITIONS
MIN
TYP
3
MAX
UNITS
Gain-Bandwidth Product
Full-Power Bandwidth
Slew Rate
MHz
kHz
V/µs
degrees
dB
V
OUT
= 4Vp-p
190
1.5
55
Phase Margin
PM
Gain Margin
GM
10
Total Harmonic Distortion
Settling Time to 0.01%
Input Capacitance
Input Noise Voltage Density
Input Current Noise Density
Crosstalk
THD
f = 10kHz, V
= 2Vp-p, A
= +1V/V
0.012
4
%
OUT
VCL
t
S
A
V
= +1V/V, 2V step
µs
C
3
pF
IN
V
NOISE
f = 10kHz
f = 10kHz
28
nV/√Hz
pA/√Hz
dB
I
0.26
-124
150
0.8
1
NOISE
f = 10kHz, MAX4332/MAX4333/MAX4334
= 1, no sustained oscillations
Capacitive Load Stability
Shutdown Time
A
V
pF
t
µs
SHDN
Enable Time from Shutdown
Power-Up Time
t
µs
ENABLE
t
5
µs
ON
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V = +5V, V = 0V, V = V / 2, V > 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
CC
GAIN AND PHASE
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
vs. FREQUENCY (C = 150pF)
L
MAX4330/34-TOC01
MAX4330/34-TOC02
180
60
40
20
0
180
144
108
72
0
-20
60
50
40
30
20
10
0
A = +1000
A = +1000
V
A = +1
V
V
135
90
GAIN
GAIN
45
36
-40
0
0
-36
-72
-108
-144
-180
-60
PHASE
-45
-90
-135
-180
PHASE
-20
-40
-80
-10
-100
-20
1k 10k
FREQUENCY (Hz)
10 100
100k 1M 10M 100M
100
1k
10k 100k
1M 10M 100M
100
1k
10k 100k
1M 10M 100M
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
5
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = 0V, V = V / 2, V > 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
CC
OUTPUT IMPEDANCE
vs. FREQUENCY
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY CURRENT
vs. TEMPERATURE
1k
100
10
350
25
20
15
A = +1
V
SHDN = 0V
330
310
V
CC
= 6.5V
V
CC
= 6.5V
290
270
250
230
210
190
170
150
V
CC
= 2.3V
1
V
CC
= 2.3V
10
5
0.1
0.01
100
1k
10k 100k
1M 10M 100M
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
FREQUENCY (Hz)
0–MAX34
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
1200
1000
800
600
400
200
0
40
1500
1000
500
0
A = OPEN LOOP
V
SHDN = 0V
SOT/µMAX PACKAGES
30
20
V
CC
= 6.5V
V
V
CC
= 6.5V
= 2.3V
OUT SHORT
V = 2.3V
CC
CC
TO V
EE
10
0
OUT SHORT
-500
V
CC
= 2.3V TO 6.5V
TO V
CC
-10
-20
-30
SO PACKAGE
-1000
-1500
-200
0
1
2
3
4
5
6
7
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
COMMON-MODE VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT SWING LOW
vs. TEMPERATURE
INPUT BIAS CURRENT
vs. TEMPERATURE
OUTPUT SWING HIGH
vs. TEMPERATURE
120
50
250
200
150
100
50
V
= 6.5V, V = V
CM CC
CC
R TO V
L
EE
R TO V
L
CC
40
30
100
80
60
40
20
0
V
CC
= 6.5V, R = 2kΩ
L
V
= 6.5V
CC
20
R = 2kΩ
L
V
CC
= 2.7V, V = V
CM CC
V
CC
= 2.3V
10
R = 2kΩ
L
V
CC
= 2.3V, R = 2kΩ
0
L
V
CC
= 2.3V, V = V
CM EE
-10
-20
-30
-40
V
= 6.5V
CC
V
CC
= 2.3V, R = 100kΩ
L
V
= 2.3V
CC
R = 100kΩ
L
R = 100kΩ
L
V
CC
= 6.5V, R = 100kΩ
L
V
CC
= 6.5V, V = V
CM EE
0
-40 -20
0
20
40
60
80 100
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20
40 60 80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
6
_______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = 0V, V = V / 2, V > 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
CC
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
(V = 2.3V, R TO V )
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
COMMON-MODE REJECTION
vs. TEMPERATURE
CC
L
EE
(V = 2.3V, R TO V )
CC
CC
L
-60
-70
118
114
110
106
102
98
118
113
108
103
98
R = 100kΩ
L
R = 100kΩ
L
-80
-90
R = 10kΩ
L
-100
-110
-120
-130
-140
R = 10kΩ
L
V
CM
= -0.25V
R = 2kΩ
L
TO +5.25V
93
R = 2kΩ
L
94
88
90
83
86
78
-60 -40 -20
0
20 40 60 80 100
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.1
0.2
0.3
0.4
0.5
0.6
TEMPERATURE (°C)
OUTPUT VOLTAGE: EITHER SUPPLY (V)
OUTPUT VOLTAGE: EITHER SUPPLY (V)
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
LARGE-SIGNAL GAIN
(V = 6.5V, R TO V
)
CC
(V = 6.5V, R TO V )
CC L EE
CC
L
vs. TEMPERATURE (R = 2kΩ)
L
140
130
125
120
115
110
105
100
95
115
110
105
100
95
V (p-p) = V - 1V
OUT CC
130
120
110
100
90
R = 100kΩ
L
R = 100kΩ
L
R TO V
V
CC
= 6.5V
L
EE
R = 10kΩ
L
R TO V
L
R = 10kΩ
L
CC
V
CC
= 2.3V
R = 2kΩ
L
R TO V
L
EE
R = 2kΩ
L
90
R TO V
L
CC
85
80
90
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.1
0.2
0.3
0.4
0.5
0.6
-60 -40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
OUTPUT VOLTAGE: EITHER SUPPLY (V)
OUTPUT VOLTAGE: EITHER SUPPLY (V)
TOTAL HARMONIC DISTORTION
AND NOISE vs. FREQUENCY
LARGE-SIGNAL GAIN
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
vs. TEMPERATURE (R = 100kΩ)
L
130
125
1
2.00
1.95
1.90
V
= 6.5V
CC
V
V
CC
(p-p) =
- 1V
OUT
A = +1
V
2Vp-p SIGNAL
500kHz LOWPASS FILTER
R TO V
L
EE
R = 10kΩ TO V / 2
L
CC
V
= 6.5V
CC
0.1
R TO V
L
CC
1.85
1.80
120
115
1.75
1.70
0.01
V
CC
= 2.3V
R TO V OR V
L
CC
EE
1.65
1.60
110
0.001
-60 -40 -20
0
20 40 60 80 100
1
10
100
1k
10k
100k
-60 -40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
FREQUENCY (Hz)
TEMPERATURE (°C)
_______________________________________________________________________________________
7
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V, V = 0V, V = V / 2, V > 2V, T = +25°C, unless otherwise noted.)
SHDN A
CC
EE
CM
CC
TOTAL HARMONIC DISTORTION
AND NOISE vs. PEAK-TO-PEAK
SIGNAL AMPLITUDE
CROSSTALK vs. FREQUENCY
CAPACITIVE LOAD STABILITY
140
10
8
1
A = +1
V
1kHz SINE WAVE
500kHz LOWPASS FILTER
130
120
110
100
90
R TO V / 2
L
CC
0.1
UNSTABLE
REGION
6
R = 2kΩ
L
R = 10kΩ
L
4
0.01
R = 100kΩ
L
2
R TO V
L
EE
V
= V / 2
OUT CC
80
0
0.001
1
10
100
1000
10000
0
200
400
600
800
1000
X
4.0
4.2
4.4
4.6
4.8
5.0
FREQUENCY (kHz)
LOAD CAPACITANCE (pF)
PEAK-TO-PEAK SIGNAL AMPLITUDE (V)
SMALL-SIGNAL TRANSIENT RESPONSE
SMALL-SIGNAL TRANSIENT RESPONSE
(INVERTING)
(NONINVERTING)
MAX4330/34-TOC23
MAX4330/34-TOC22
A = -1
V
A = +1
V
IN
IN
OUT
OUT
TIME (200ns/div)
TIME (200ns/div)
LARGE-SIGNAL TRANSIENT RESPONSE
LARGE-SIGNAL TRANSIENT RESPONSE
(INVERTING)
(NONINVERTING)
MAX4330/34-TOC25
MAX4330/34-TOC24
IN
IN
OUT
OUT
TIME (5µs/div)
TIME (5µs/div)
8
_______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
P in De s c rip t io n
PIN
MAX4333
NAME
FUNCTION
MAX4330
MAX4331
MAX4332
MAX4334
10-Pin
µMAX
14-Pin SO
1
2
6
4
—
4
—
—
—
11
OUT
Output
Negative Supply. Ground for single-
supply operation.
4
4
V
EE
3
4
5
3
2
7
—
—
8
—
—
10
—
—
14
—
—
4
IN+
IN-
Noninverting Input
Inverting Input
V
CC
Positive Supply
No Connection. Not internally
connected.
—
—
—
—
1, 5
—
—
—
5, 7, 8, 10
1, 13
—
N.C.
OUT1,
OUT2
1, 7
3, 5
2, 6
1, 9
3, 7
2, 8
1, 7
3, 5
2, 6
Outputs for Amplifiers 1 and 2
IN1+,
IN2+
Noninverting Inputs to Amplifiers
1 and 2
—
3, 11
IN1-,
IN2-
Inverting Inputs to Amplifiers
1 and 2
—
2, 12
Shutdown Input for Amplifier. Drive
low for shutdown mode. Drive
high or connect to V for normal
CC
—
—
8
—
—
—
—
—
—
SHDN
operation.
Shutdown for Amplifiers 1 and 2.
Drive low for shutdown mode.
Drive high or connect to V for
CC
SHDN1,
SHDN2
—
5, 6
6, 9
normal operation.
OUT3,
OUT4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8, 14
9, 13
Outputs for Amplifiers 3 and 4
IN3-,
IN4-
Inverting Inputs for Amplifiers
3 and 4
IN3+,
IN4+
Noninverting Inputs for Amplifiers
3 and 4
10, 12
_______________________________________________________________________________________
9
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
_______________De t a ile d De s c rip t io n
Ra il-t o -Ra il In p u t S t a g e
The MAX4330–MAX4334 have rail-to-rail input and out-
MAX4330
MAX4331
MAX4332
MAX4333
MAX4334
p ut s ta g e s tha t a re s p e c ific a lly d e s ig ne d for low-
voltage, single-supply operation. The input stage con-
sists of se p a ra te NPN a nd PNP d iffe re ntia l sta ge s,
which operate together to provide a common-mode
range extending to 0.25V beyond both supply rails. The
R3
crossover region, which occurs halfway between V
CC
and V , is extended to minimize degradation in CMRR
EE
caused by mismatched input pairs. The input offset volt-
age is typically 250µV. Low offset voltage, high band-
wid th, ra il-to-ra il c ommon-mod e inp ut ra ng e , a nd
rail-to-rail outputs make this family of op amps an excel-
lent choice for precision, low-voltage data-acquisition
systems.
R3 = R1 R2
R1
R2
Since the input stage consists of NPN and PNP pairs,
the input bias current changes polarity as the input volt-
age passes through the crossover region. Match the
effective impedance seen by each input to reduce the
offset error due to input bias currents flowing through
external source impedances (Figures 1a and 1b). The
c omb ina tion of hig h s ourc e imp e d a nc e with inp ut
capacitance (amplifier input capacitance plus stray
capacitance) creates a parasitic pole that produces an
underdamped signal response. Reducing input capaci-
tance or placing a small capacitor across the feedback
resistor improves response.
0–MAX34
Figure 1a. Reducing Offset Error Due to Bias Current
(Noninverting)
MAX4330
MAX4331
MAX4332
MAX4333
The MAX4330–MAX4334’s inputs are protected from
large differential input voltages by internal 1kΩ series
resistors and back-to-back triple diode stacks across
the inputs (Figure 2). For differential input voltages
(much less than 1.8V), input resistance is typically
2.3MΩ. For differential input voltages greater than 1.8V,
input resistance is around 2kΩ, and the input bias cur-
rent can be approximated by the following equation:
MAX4334
R3
R3 = R1 R2
I
= (V
- 1.8V) / 2kΩ
BIAS
DIFF
R1
R2
In the re g ion whe re the d iffe re ntia l inp ut volta g e
approaches 1.8V, input resistance decreases exponen-
tially from 2.3MΩ to 2kΩ as the diode block begins con-
ducting. Inversely, the bias current increases with the
same curve.
Figure 1b. Reducing Offset Error Due to Bias Current
(Inverting)
10 ______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
1k
1k
Figure 2. Input Protection Circuit
R
ISO
= 0Ω, A = +1
V
C
L
= 510pF
50mV/div
50mV/div
IN
1V/div
1V/div
IN
OUT
OUT
2µs/div
= 3V, R = 100kΩ
20µs/div
V
CC
L
V
CC
= 3V, R = 2kΩ TO V / 2
L CC
Figure 4. Small-Signal Transient Response with Excessive
Capacitive Load
Figure 3. Rail-to-Rail Input/Output Voltage Range
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4330–MAX4334 are stable for capacitive loads
up to 150pF. The Capacitive Load Stability graph in the
Typ ic a l Op e ra ting Cha ra c te ris tic s g ive s the s ta b le
op e ra ting re g ion for c a p a c itive vs . re s is tive loa d s .
Figures 4 and 5 show the response of the MAX4331
with an excessive capacitive load, compared with the
response when a series resistor is added between the
output and the capacitive load. The resistor improves
the circuit’s response by isolating the load capacitance
from the op amp’s output (Figure 6).
Ra il-t o -Ra il Ou t p u t S t a g e
The MAX4330–MAX4334 output stage can drive up to a
2kΩ load and still typically swing within 125mV of the
rails. Figure 3 shows the output voltage swing of a
MAX4331 configured as a unity-gain buffer. The operat-
ing voltage is a single +3V supply, and the input volt-
age is 3Vp-p. The output swings to within 70mV of V
EE
a nd 100mV of V , e ve n with the ma ximum loa d
CC
applied (2kΩ to mid-supply).
______________________________________________________________________________________ 11
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
A = +1, C = 510pF
V
L
R
ISO
= 39Ω
50mV/div
50mV/div
IN
R
ISO
OUT
C
L
MAX4330
MAX4331
MAX4332
MAX4333
MAX4334
2µs/div
Figure 6. Capacitive-Load-Driving Circuit
0–MAX34
Figure 5. Small-Signal Transient Response with Excessive
Capacitive Load and Isolation Resistor
MAX4330
V
CC
MAX4331
MAX4332
MAX4333
MAX4334
1V/div
V
CC
0V TO +2.7V STEP
FOR POWER-UP
TEST, +2.7V STEP
FOR SHUTDOWN-
ENABLE TEST
2k
2k
V
OUT
0V TO +2.7V
STEP FOR
SHUTDOWN
TEST
SHDN
500mV/div
OUT
10k
100Ω
SUPPLY-CURRENT
MONITORING POINT
5µs/div
Figure 8. Power-Up/Down Output Voltage
Figure 7. Power-Up/Shutdown Test Circuit
S h u t d o w n Mo d e
The MAX4331/MAX4333 feature a low-power shutdown
mode. When the shutdown pin (SHDN) is pulled low, the
supply current drops to 9µA per amplifier (typical), the
amplifier is disabled, and the outputs enter a high-
impedance state. Pulling SHDN high or leaving it float-
ing enables the amplifier. Figures 10 and 11 show the
MAX4331/MAX4333’s output voltage and supply-current
responses to a shutdown pulse.
__________Ap p lic a t io n s In fo rm a t io n
P o w e r-Up
The MAX4330–MAX4334 outputs typically settle within
5µs after power-up. Using the test circuit of Figure 7,
Figures 8 and 9 show the output voltage and supply
current on power-up and power-down.
12 ______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
1V/div
V
CC
1V/div
SHDN
OUT
500mV/div
100µA/div
I
CC
5µs/div
5µs/div
Figure 9. Power-Up/Down Supply Current
Figure 10. Shutdown Output Voltage Enable/Disable
Do not three-state SHDN. Due to the output leakage
currents of three-state devices and the small internal
pull-up current for SHDN, three-stating this pin could
result in indeterminate logic levels, and could adversely
affect op-amp operation.
1V/div
SHDN
The logic threshold for SHDN is always referred to V
,
EE
not GND. When using dual supplies, pull SHDN to V
EE
to place the op amp in shutdown mode.
P o w e r S u p p lie s a n d La yo u t
The MAX4330–MAX4334 operate from a single +2.3V
to +6.5V power supply, or from dual ±1.15V to ±3.25V
s up p lie s . For s ing le -s up p ly op e ra tion, b yp a s s the
100µA/div
I
CC
power supply with a 0.1µF capacitor to ground (V ).
EE
For dual supplies, bypass both V
own set of capacitors to ground.
and V with their
CC
EE
5µs/div
Good layout technique helps 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.
Figure 11. Shutdown Enable/Disable Supply Current
______________________________________________________________________________________ 13
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
P in Co n fig u ra t io n s (c o n t in u e d )
TOP VIEW
N.C.
IN-
1
2
3
4
8
7
6
5
SHDN
OUT1
IN1-
1
2
3
4
8
7
6
5
V
CC
V
CC
OUT2
IN2-
MAX4331
MAX4332
IN+
OUT
N.C.
IN1+
V
EE
V
EE
IN2+
SO/µMAX
SO
0–MAX34
OUT1
IN1-
1
2
3
4
5
10
9
V
CC
OUT2
IN2-
MAX4333
IN1+
8
V
EE
7
IN2+
SHDN1
6
SHDN2
µMAX
OUT1
IN1-
1
2
3
4
5
6
7
14
V
OUT1
IN1-
1
2
3
4
5
6
7
14 OUT4
13 IN4-
12 IN4+
CC
13 OUT2
12 IN2-
11 IN2+
10 N.C.
IN1+
IN1+
V
EE
V
CC
11
V
EE
MAX4333
MAX4334
N.C.
SHDN1
N.C.
IN2+
IN2-
10 IN3+
9
8
SHDN2
N.C.
9
8
IN3-
OUT2
OUT3
SO
SO
14 ______________________________________________________________________________________
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
0–MAX34
Ch ip In fo rm a t io n
MAX4330/MAX4331
TRANSISTOR COUNT: 199
SUBSTRATE CONNECTED TO V
EE
MAX4332/MAX4333
TRANSISTOR COUNT: 398
SUBSTRATE CONNECTED TO V
EE
MAX4334
TRANSISTOR COUNT: 796
SUBSTRATE CONNECTED TO V
EE
Ta p e -a n d -Re e l In fo rm a t io n
E
W
B
D
0
P
P
2
0
t
D
1
F
P
NOTE: DIMENSIONS ARE IN MM.
K
0
A
0
AND FOLLOW EIA481-1 STANDARD.
P
3.988
40.005
2.007
±0.102
±0.203
±0.051
±0.127
±0.102
±0.102
A
B
3.200
3.099
E
1.753
3.505
1.397
3.988
±0.102
0
0
P 10
F
K
P
±0.051
±0.102
±0.102
0
0
+0.102
+0.000
P
2
0
D
D
1.499
0.991
t
0.254
+0.254
+0.000
1
+0.305
-0.102
W
8.001
______________________________________________________________________________________ 15
S in g le /Du a l/Qu a d , Lo w -P o w e r, S in g le -S u p p ly,
Ra il-t o -Ra il I/O Op Am p s w it h S h u t d o w n
________________________________________________________P a c k a g e In fo rm a t io n
0–MAX34
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.
16 ____________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 4 0 8 -7 3 7 -7 6 0 0
© 1998 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
相关型号：
MAX4331EUA-T
Operational Amplifier, 1 Func, 3200uV Offset-Max, BIPolar, PDSO8, MICRO MAX PACKAGE-8
MAXIM
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