ALD4701ASBL [ALD]
QUAD MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER; 四路微功耗轨到轨CMOS运算放大器
| 型号： | ALD4701ASBL |
| 厂家： | 
ADVANCED LINEAR DEVICES |
| 描述： | QUAD MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER |
| 文件： | 总9页 (文件大小：86K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A
L
D
DVANCED
INEAR
EVICES, INC.
ALD4701A/ALD4701B
ALD4701
QUAD MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
FEATURES
GENERAL DESCRIPTION
• All parameters specified for +5V single
supply or ±2.5V dual supply systems
• Rail-to-rail input and output voltage ranges
• Unity gain stable
• Extremely low input bias currents -- 1.0pA
• High source impedance applications
• Dual power supply ±1.0V to ±5.0V
• Single power supply +2V to +10V
• High voltage gain
The ALD4701A/ALD4701B/ALD4701 is a quad monolithic CMOS
micropower high slew rate operational amplifier intended for a broad range
ofanalogapplicationsusing±1Vto±5Vdualpowersupplysystems, aswell
as +2V to +10V battery operated systems. All device characteristics are
specified for +5V single supply or ±2.5V dual supply systems. Total supply
current for all four operational amplifiers is 1mA maximum at 5V supply
voltage. It is manufactured with Advanced Linear Devices' enhanced
ACMOS silicon gate CMOS process.
• Output short circuit protected
• Unity gain bandwidth of 0.7MHz
• Slew rate of 0.7V/µs
• Low power dissipation
• Symmetrical output drive
The ALD4701A/ALD4701B/ALD4701 is designed to offer a trade-off of
performance parameters providing a wide range of desired specifications.
It has been developed specifically for the +5V single supply or ±1V to ±5V
dual supply user and offers the popular industry standard pin configuration
of LM324 types and ICL7641 types.
• Suitable for rugged, temperature-extreme
environments
Several important characteristics of the device make application easier to
implement at these voltages. First, each operational amplifier can operate
with rail to rail input and output voltages. This means the signal input
voltage and output voltage can be equal to or near to the positive and
negative supply voltages. This feature allows numerous analog serial
stages and flexibility in input signal bias levels. Second, each device was
designed to accommodate mixed applications where digital and analog
circuitsmayoperateoffthesamepowersupplyorbattery. Third, theoutput
stage can typically drive up to 50pF capacitive and 10KΩ resistive loads.
APPLICATIONS
• Voltage follower/buffer/amplifier
• Charge integrator
• Photodiode amplifier
• Data acquisition systems
• High performance portable instruments
• Signal conditioning circuits
• Sensor and transducer amplifiers
• Low leakage amplifiers
• Active filters
These features, combined with extremely low input currents, high open
loop voltage gain of 100V/mV, useful bandwidth of 700KHz, a slew rate of
0.7V/µs, lowpowerdissipationof5mW, lowoffsetvoltageandtemperature
drift, make the ALD4701A/ALD4701B/ALD4701 a versatile, micropower
quad operational amplifier.
• Sample/Hold amplifier
• Picoammeter
TheALD4701A/ALD4701B/ALD4701,designedandfabricatedwithsilicon
gate CMOS technology, offers 1pA typical input bias current. Due to low
voltage and low power operation, reliability and operating characteristics,
such as input bias currents and warm up time, are greatly improved.
Additionally, robust design and rigorous screening make this device
especiallysuitableforoperationintemperature-extremeenvironmentsand
rugged conditions.
• Current to voltage converter
PIN CONFIGURATION
1
2
3
OUT
-IN
14 OUT
A
A
A
D
13 -IN
D
+IN
12
+IN
D
ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS))
Operating Temperature Range
+
B
B
B
V
V-
4
5
11
10
0°C to +70°C
0°C to +70°C
-55°C to 125°C
+IN
+IN
-IN
C
14-Pin
14-Pin
14-Pin
CERDIP
Package
6
7
9
8
-IN
C
Small Outline
Package (SOIC)
Plastic Dip
Package
OUT
OUT
C
ALD4701ASBL
ALD4701BSBL
ALD4701SBL
ALD4701APBL
ALD4701BPBL
ALD4701PBL
ALD4701ADB
ALD4701BDB
ALD4701DB
TOP VIEW
SBL, PBL, DB PACKAGES
* Contact factory for leaded (non-RoHS) or high temperature versions.
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+
Differential input voltage range
Power dissipation
10.6V
-0.3V to V+ +0.3V
600 mW
Operating temperature range SBL, PBL packages
0°C to +70°C
-55°C to +125°C
-65°C to +150°C
+260°C
DB package
Storage temperature range
Lead temperature, 10 seconds
CAUTION: ESD Sensitive Device. Use static control procedures in ESD controlled environment.
OPERATING ELECTRICAL CHARACTERISTICS
T
A
= 25°C V = ±2.5V unless otherwise specified
S
4701A
4701B
4701
Test
Parameter
Symbol
Min Typ
Max Min Typ Max
Min Typ Max
Unit
Conditions
Supply
Voltage
V
V
±1.0
2.0
±5.0 ±1.0
±5.0 ±1.0
10.0 2.0
±5.0
10.0
V
V
Dual Supply
Single Supply
S
+
10.0
2.0
Input Offset
Voltage
V
2.0
2.8
5.0
5.8
10.0
11.0
mV
mV
R ≤ 100KΩ
S
OS
0°C ≤ T ≤ +70°C
A
Input Offset
Current
I
I
1.0
1.0
25
240
1.0
1.0
25
240
1.0
1.0
25
240
pA
pA
T = 25°C
A
OS
0°C ≤ T ≤ +70°C
A
Input Bias
Current
30
300
30
300
30
300
pA
pA
T = 25°C
A
B
0°C ≤ T ≤ +70°C
A
+
Input Voltage
Range
V
-0.3
-2.8
5.3 -0.3
2.8 -2.8
5.3 -0.3
2.8 -2.8
5.3
2.8
V
V
V
V
= +5
= ±2.5V
IR
S
Input
R
IN
1012
1012
1012
Ω
Resistance
Input Offset
Voltage Drift
TCV
OS
5
5
7
µV/°C
R
R
≤ 100KΩ
≤ 100KΩ
S
S
Power Supply
Rejection Ratio
PSRR
CMRR
65
65
80
80
65
65
80
80
60
60
80
80
dB
dB
0°C ≤ T ≤ +70°C
A
Common Mode
Rejection Ratio
65
65
83
83
65
65
83
83
60
60
83
83
dB
dB
R ≤ 100KΩ
S
0°C ≤ T ≤ +70°C
A
Large Signal
Voltage Gain
A
V
15
10
100
300
15
10
100
300
10
7
80
300
V/mV
V/mV
V/mV R = 100KΩ
R
R
= 100KΩ
≥ 1MΩ
L
L
L
0°C ≤ T ≤ +70°C
A
+
Output
Voltage
Range
V
V
low
high
0.001
4.99 4.999
0.01
0.001 0.01
4.99 4.999
0.001 0.01
4.99 4.999
V
V
R = 1MΩ V = +5V
L
O
O
0°C ≤ T ≤ +70°C
A
V
V
low
high
-2.48 -2.40
2.48
-2.48 -2.40
2.40 2.48
-2.48 -2.40
2.40 2.48
V
V
R = 100KΩ
L
O
O
2.40
0°C ≤ T ≤ +70°C
A
Output Short
I
1
1
1
mA
SC
Circuit Current
Supply
Current
I
490 1000
5.0
490 1000
5.0
490 1000
5.0
µA
V
= 0V
IN
S
No Load
Power
P
mW
Both amplifiers
D
Dissipation
V = ±2.5V
S
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
2 of 9
OPERATING ELECTRICAL CHARACTERISTICS (cont'd)
= 25°C V = ±2.5V unless otherwise specified
T
A
S
4701A
4701B
4701
Test
Parameter
Symbol Min
Typ Max Min Typ Max Min Typ
Max Unit
Conditions
Input
C
1
1
1
pF
IN
Capacitance
Bandwidth
Slew Rate
B
S
700
0.7
700
0.7
700
0.7
KHz
W
R
V/µs
A
= +1
V
R
= 100KΩ
L
Rise time
t
r
0.2
20
0.2
20
0.2
20
µs
R
= 100KΩ
L
Overshoot
Factor
%
R
C
= 100KΩ
= 50pF
L
L
Settling
Time
t
10.0
120
10.0
120
10.0
120
µs
0.1%
= -1
s
A
V
C
= 50pF R = 100KΩ
L
L
Channel
C
dB
A
= 100
S
V
Separation
T
= 25°C V = ±5.0V unless otherwise specified
S
A
4701A
4701B
4701
Test
Parameter
Symbol Min
Typ Max Min Typ Max Min Typ
Max Unit
Conditions
Power Supply
Rejection Ratio
PSRR
83
83
83
83
dB
R
R
≤ 100KΩ
≤ 100KΩ
S
Common Mode
Rejection Ratio
CMRR
83
83
dB
S
Large Signal
Voltage Gain
A
250
250
250
V/mV
R
R
= 100KΩ
= 100KΩ
V
L
Output Voltage
Range
V
V
low
high 4.90
-4.98 -4.90
4.98
-4.98 -4.90
4.90 4.98
-4.98
4.90 4.98
-4.90
V
V
O
O
L
Bandwidth
Slew Rate
B
S
1.0
1.0
1.0
1.0
1.0
1.0
MHz
W
R
V/µs
A
= +1
V
C
L
= 50pF
V = ± 2.5V -55°C ≤ T ≤ +125°C unless otherwise specified
S
A
4701ADA
4701BDA
4701DA
Test
Parameter
Symbol Min
Typ Max Min Typ Max Min Typ
Max Unit
Conditions
Input Offset
Voltage
V
3.0
6.0
15.0 mV
R
≤ 100KΩ
OS
S
Input Offset
Current
I
I
8.0
8.0
8.0 nA
OS
Input Bias
Current
10.0
10.0
10.0 nA
B
Power Supply
Rejection Ratio
PSRR
CMRR
60
60
75
83
60
60
75
83
60
60
75
83
dB
dB
R
R
≤ 100KΩ
≤ 100KΩ
S
S
Common Mode
Rejection Ratio
Large Signal
Voltage Gain
A
10
50
10
50
7
50
V/mV
R
R
≤ 100KΩ
≤ 100KΩ
V
L
L
Output Voltage
Range
V
V
low
-2.47 -2.40
2.45
-2.47 -2.40
2.35 2.45
-2.47 -2.40
V
V
O
O
high 2.35
2.35 2.45
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
3 of 9
Design & Operating Notes:
1. TheALD4701A/ALD4701B/ALD4701CMOSoperationalamplifieruses
a 3 gain stage architecture and an improved frequency compensation
scheme to achieve large voltage gain, high output driving capability,
and better frequency stability. In a conventional CMOS operational
amplifierdesign, compensationisachievedwithapolesplittingcapaci-
tor together with a nulling resistor. This method is, however, very bias
dependent and thus cannot accommodate the large range of supply
voltage operation as is required from a stand alone CMOS operational
amplifier. The ALD4701A/ALD4701B/ALD4701 is internally compen-
sated for unity gain stability using a novel scheme that does not use a
nulling resistor. This scheme produces a clean single pole roll off in the
gain characteristics while providing for more than 70 degrees of phase
margin at the unity gain frequency.
temperature. This low input bias current assures that the analog signal
from the source will not be distorted by input bias currents. Normally,
this extremely high input impedance of greater than 1012Ω would not be
a problem as the source impedance would limit the node impedance.
However, for applications where source impedance is very high, it may
be necessary to limit noise and hum pickup through proper shielding.
4. The output stage consists of class AB complementary output drivers,
capable of driving a low resistance load. The output voltage swing is
limited by the drain to source on-resistance of the output transistors as
determined by the bias circuitry, and the value of the load resistor.
When connected in the voltage follower configuration, the oscillation
resistant feature, combined with the rail to rail input and output feature,
makes an effective analog signal buffer for medium to high source
impedance sensors, transducers, and other circuit networks.
2. The ALD4701A/ALD4701B/ALD4701 has complementary p-channel
and n-channel input differential stages connected in parallel to accom-
plish rail-to-rail input common mode voltage range. This means that
with the ranges of common mode input voltage close to the power
supplies, one of the two differential stages is switched off internally. To
maintain compatibility with other operational amplifiers, this switching
point has been selected to be about 1.5V below the positive supply
voltage. Since offset voltage trimming on the ALD4701A/ALD4701B/
ALD4701 is made when the input voltage is symmetrical to the supply
voltages, this internal switching does not affect a large variety of
applications such as an inverting amplifier or non-inverting amplifier
with a gain larger than 2.5 (5V operation), where the common mode
voltagedoesnotmakeexcursionsabovethisswitchingpoint. Theuser
should however, be aware that this switching does take place if the
operational amplifier is connected as a unity gain buffer and should
make provision in his design to allow for input offset voltage variations.
5. The ALD4701A/ALD4701B/ALD4701 operational amplifier has been
designed to provide full static discharge protection. Internally, the
designhasbeencarefullyimplementedtominimizelatchup. However,
care must be exercised when handling the device to avoid strong static
fields that may degrade a diode junction, causing increased input
leakagecurrents. Inusingtheoperationalamplifier, theuserisadvised
to power up the circuit before, or simultaneously with, any input
voltages applied and to limit input voltages not to exceed 0.3V of the
power supply voltage levels.
6. The ALD4701A/ALD4701B/ALD4701, with its micropower operation,
offers numerous benefits in reduced power supply requirements, less
noise coupling and current spikes, less thermally induced drift, better
overall reliability due to lower self heating, and lower input bias current.
It requires practically no warm up time as the chip junction heats up to
only 0.4°C above ambient temperature under most operating condi-
tions.
3. Theinputbiasandoffsetcurrentsareessentiallyinputprotectiondiode
reverse bias leakage currents, and are typically less than 1pA at room
TYPICAL PERFORMANCE CHARACTERISTICS
SUPPLY CURRENT AS A FUNCTION
OF SUPPLY VOLTAGE
COMMON MODE INPUT VOLTAGE RANGE
AS A FUNCTION OF SUPPLY VOLTAGE
±7
±6
INPUTS GROUNDED
+25°C
OUTPUT UNLOADED
1600
1200
800
400
0
T
A
= 25°C
±5
±4
-25°C
T
A
= -55°C
±3
±2
±1
0
+125°C
±5
+70°C
0
±1
±2
±3
±4
±5
±6
±7
0
±1
±2
±3
±4
±6
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
INPUT BIAS CURRENT AS A FUNCTION
OF AMBIENT TEMPERATURE
OPEN LOOP VOLTAGE GAIN AS A
FUNCTION OF LOAD RESISTANCE
1000
10000
1000
V
= ±2.5V
S
100
10
100
10
1.0
0.1
V
T
= ±2.5V
= 25°C
S
A
1
10K
100K
1M
10M
-50 -25
0
25
50
75
100
125
LOAD RESISTANCE (Ω)
AMBIENT TEMPERATURE (°C)
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
4 of 9
TYPICAL PERFORMANCE CHARACTERISTICS (cont'd)
OPEN LOOP VOLTAGE GAIN AS A FUNCTION
OF SUPPLY VOLTAGE AND TEMPERATURE
OUTPUT VOLTAGE SWING AS A FUNCTION
OF SUPPLY VOLTAGE
1000
±6
-55°C ≤ T ≤ +125°C
A
±5
±4
R
= 100KΩ
L
100
±3
10
1
±2
±1
-55°C ≤ T ≤ +125°C
A
R
= 100KΩ
L
0
0
±2
±4
±6
±8
±1
±2
±3
±4
±5
±6
±7
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
INPUT OFFSET VOLTAGE AS A FUNCTION
OF AMBIENT TEMPERATURE
OPEN LOOP VOLTAGE GAIN AS A FUNCTION
OF FREQUENCY
REPRESENTATIVE UNITS
120
100
80
+5
+4
V
T
= ±2.5V
= 25°C
S
A
V
= ±2.5V
S
+3
+2
0
60
40
+1
0
45
-1
-2
90
135
180
20
0
-3
-4
-20
1
10
100
1K
10K 100K
1M
10M
-5
-50
-25
0
+25
+50
+75
+100 +125
FREQUENCY (Hz)
AMBIENT TEMPERATURE (°C)
INPUT OFFSET VOLTAGE AS A FUNCTION
OF COMMON MODE INPUT VOLTAGE
LARGE - SIGNAL TRANSIENT
RESPONSE
15
V
T
= ±2.5V
= 25°C
S
A
2V/div
V
T
= ±1.0V
= 25°C
S
A
10
R
C
= 100KΩ
= 50pF
L
L
5
0
-5
-10
-15
500mV/div
5µs/div
-2
-1
0
+1
+2
+3
COMMON MODE INPUT VOLTAGE (V)
LARGE - SIGNAL TRANSIENT
RESPONSE
SMALL - SIGNAL TRANSIENT
RESPONSE
5V/div
V
T
R
= ±2.5V
= 25°C
= 100KΩ
= 50pF
100mV/div
V
= ±2.5V
S
= 25°C
S
A
L
L
T
A
R
C
= 100KΩ
= 50pF
L
L
C
2V/div
5µs/div
20mV/div
2µs/div
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
5 of 9
TYPICAL APPLICATIONS
RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER
TRANSCONDUCTANCE AMPLIFIER
+5V
+
-
V
IN
5V
~
12
Z
= 10
Ω
V
IN
OUT
12
0.1µF
R
10
Ω
IN =
-
R
L
I
OUT
V
OUT
V
+
IN
1/4 ALD4701
R
= R
V
V
OUT
L
2
IN
1/4 ALD4701
Min Max Min Max
0.0 2.00 0.0 4.00
0.0 2.45 0.0 4.90
R
2
I
= V
IN
0≤ V ≤ 5V
IN
OUT
1K
10K
R
2
HIGH INPUT IMPEDANCE RAIL-TO-RAIL PRECISION
DC SUMMING AMPLIFIER
PHOTO DETECTOR CURRENT TO
VOLTAGE CONVERTER
V+ = +2.5V
R
F
= 5M
10M
V
1
+
-
I
1/4 ALD4701
0.1µF
V
1 X R
F
V
+2.5V
OUT
=
2
10M
10M
-
V
OUT
10M
PHOTODIODE
0.1µF
R
L
= 100K
V
V- ≤ V ≤ V+
IN
+
3
4
-2.5V
1/4 ALD4701
V
V- ≤ V
OUT
≤ V+
V- = - 2.5V
10M
10M
V
= V + V - V - V
1 2 3 4
OUT
R
= 10MΩ Accuracy limited by resistor tolerances and input offset voltage
IN
RAIL-TO-RAIL WINDOW COMPARATOR
WIEN BRIDGE OSCILLATOR (RAIL-TO-RAIL)
SINE WAVE GENERATOR
+5V
1/4 ALD4701
8
V
3
2
REF (HIGH)
+
-
+5V
-
100K
1/4 74 C00
1
7
V
OUT
1/4 ALD4701
+
10K
V
OUT
-5V
10K
V
IN
5
6
+
-
.01µF
R = 10K
C = .01µF
V
REF (LOW)
10K
4
100K
1/4 ALD4701
~
~
= 1.6KHZ
f =
1
2πRC
V
for V
REF (LOW)
< V < V
IN
OUT (LOW)
REF (HIGH)
FUNCTION GENERATOR
0.1µF
100K
220K
100K
+2.5V
4
54K
2
3
-
0.002µF
0.002µF
10K
.01µF
1
6
5
-
100K
-
7
+
9
11
27K
8
13
-
+
-2.5V
14
+
10
100K
VOUT
+
12
10K
27K
100K
Square
Square Wave
TrianTgrlieanWglaeve
Sine Wave
Wave
1/4 ALD4701
Wave
27K
-2X GAIN
1/4 ALD4701
1/4 ALD4701
1/4 ALD4701
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
6 of 9
SOIC-14 PACKAGE DRAWING
14 Pin Plastic SOIC Package
Millimeters
Inches
Dim
A
Min
Max
Min
Max
E
1.75
0.25
0.45
0.25
8.75
4.05
0.053
0.069
1.35
A
1
0.004
0.014
0.007
0.336
0.140
0.010
0.018
0.010
0.345
0.160
0.10
0.35
0.18
8.55
3.50
b
C
S (45°)
D-14
E
e
1.27 BSC
0.050 BSC
0.224
H
6.30
0.937
8°
0.248
0.037
8°
5.70
0.60
0°
D
L
0.024
0°
ø
S
0.50
0.010
0.020
0.25
A
A
1
e
b
S (45°)
C
H
L
ø
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
7 of 9
PDIP-14 PACKAGE DRAWING
14 Pin Plastic DIP Package
Millimeters
Inches
Dim
A
Min
Max
Min
Max
5.08
0.105
0.200
3.81
0.38
1.27
0.89
0.38
0.20
17.27
5.59
7.62
2.29
7.37
2.79
1.02
0°
E
E
1
A
A
1
1.27
2.03
1.65
0.51
0.30
19.30
7.11
8.26
2.79
7.87
3.81
2.03
15°
0.015
0.050
0.035
0.015
0.008
0.680
0.220
0.300
0.090
0.290
0.110
0.040
0°
0.050
0.080
0.065
0.020
0.012
0.760
0.280
0.325
0.110
0.310
0.150
0.080
15°
2
b
b
1
c
D-14
E
E
1
D
e
S
e
1
L
A
2
A
S-14
ø
L
A
1
e
b
b
1
c
ø
e
1
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
8 of 9
CERDIP-14 PACKAGE DRAWING
14 Pin CERDIP Package
Millimeters
Inches
Dim
A
Min
Max
Min
Max
5.08
2.16
1.65
0.58
0.38
19.94
7.87
8.26
0.140
0.200
3.55
E
E
1
A
1
0.050
0.038
0.014
0.008
--
0.085
0.065
0.023
0.015
0.785
0.310
0.325
1.27
0.97
0.36
0.20
--
b
b
1
C
D-14
E
D
0.220
0.290
5.59
7.73
E
1
e
0.100 BSC
0.300 BSC
2.54 BSC
7.62 BSC
A
1
s
e
1
A
L
5.08
--
0.150
0.200
--
3.81
L
1
0.125
0.015
--
3.18
0.38
--
L
1
L
L
2
L
2
1.78
2.49
15°
0.070
0.098
15°
b
b
1
S
Ø
0°
0°
e
C
ø
e
1
ALD4701A/ALD4701B
ALD4701
Advanced Linear Devices
9 of 9
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