ICL7621AMTV [INTERSIL]
Dual/Quad, Low Power CMOS Operational Amplifiers; 双/四路，低功耗CMOS运算放大器
| 型号： | ICL7621AMTV |
| 厂家： | 
Intersil |
| 描述： | Dual/Quad, Low Power CMOS Operational Amplifiers |
| 文件： | 总9页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICL7621, ICL7641, ICL7642
Data Sheet
April 1999
File Number 3403.3
Dual/Quad, Low Power CMOS Operational
Amplifiers
Features
• Wide Operating Voltage Range . . . . . . . . . . . ±1V to ±8V
12
The ICL761X/762X/764X series is a family of monolithic
CMOS operational amplifiers. These devices provide the
designer with high performance operation at low supply
voltages and selectable quiescent currents. They are an
ideal design tool when ultra low input current and low power
dissipation are desired.
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . .10
Ω
• Input Current Lower Than BIFETs . . . . . . . . . . . 1pA (Typ)
• Output Voltage Swing . . . . . . . . . . . . . . . . . . . . V+ and V-
• Available as Duals and Quads (Refer to ICL7611 for Singles)
• Low Power Replacement for Many Standard Op Amps
The basic amplifier will operate at supply voltages ranging
from ±1V to ±8V, and may be operated from a single Lithium
cell. The output swing ranges to within a few millivolts of the
supply voltages.
Applications
• Portable Instruments
• Telephone Headsets
• Hearing Aid/Microphone Amplifiers
• Meter Amplifiers
The quiescent supply current of these amplifiers is set to 3
different ranges at the factory. Both amps of the dual
ICL7621 are set to an I of 100µA, while each amplifier of
Q
• Medical Instruments
• High Impedance Buffers
the quad ICL7641 and ICL7642 are set to an I of 1mA and
Q
10µA respectively. This results in power consumption as low
as 20µW per amplifier.
Pinouts
ICL7621 (PDIP, SOIC)
Of particular significance is the extremely low (1pA) input
TOP VIEW
12
current, input noise current of 0.01pA/√Hz, and 10 Ω input
impedance. These features optimize performance in very
high source impedance applications.
OUT
1
2
3
4
8
7
6
5
V+
A
-IN
OUT
A
B
-
The inputs are internally protected. Outputs are fully
protected against short circuits to ground or to either supply.
+IN
-IN
B
A
-
V-
+IN
B
AC performance is excellent, with a slew rate of 1.6V/µs, and
unity gain bandwidth of 1MHz at I = 1mA.
Q
ICL7621 (METAL CAN)
TOP VIEW
Because of the low power dissipation, junction temperature
rise and drift are quite low. Applications utilizing these
features may include stable instruments, extended life
designs, or high density packages.
V+
8
OUT
1
3
7
OUT
B
A
-
-
Ordering Information
2
6
-IN
B
-IN
A
TEMP.
PKG.
NO.
o
PART NUMBER RANGE ( C)
PACKAGE
8 Ld PDIP -
+IN
5
+IN
B
A
ICL7621ACPA
ICL7621BCPA
ICL7621DCPA
ICL7621AMTV
ICL7621DCBA
ICL7621DCBA-T
0 to 70
0 to 70
0 to 70
E8.3
4
A Grade - I = 100µA
Q
V-
8 Ld PDIP -
E8.3
B Grade - I = 100µA
Q
ICL7641 (PDIP), ICL7642 (PDIP)
8 Ld PDIP -
E8.3
TOP VIEW
D Grade - I = 100µA
Q
-55 to 125 8 Pin Metal Can -
T8.C
M8.15
M8.15
OUT
1
2
3
4
5
6
7
14 OUT
D
A
A Grade - I = 100µA
Q
-
-
-
-
-IN
13 -IN
D
A
A
0 to 70
0 to 70
8 Ld SOIC -
D Grade - I = 100µA
Q
+IN
12 +IN
D
8 Ld SOIC - D Grade -
Tape and Reel -
V+
11 V-
I
= 100µA
Q
+IN
10 +IN
B
B
B
C
ICL7641ECPD
ICL7642ECPD
0 to 70
0 to 70
14 Ld PDIP - E Grade - E14.3
= 1mA
-IN
9
8
-IN
C
I
Q
14 Ld PDIP - E Grade - E14.3
OUT
OUT
C
I
= 10µA
Q
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
1
ICL7621, ICL7641, ICL7642
Absolute Maximum Ratings
Thermal Information
o
o
Supply Voltage V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . V- -0.3 to V+ +0.3V
Differential Input Voltage (Note 1) . . . . . . . . . [(V+ +0.3) - (V- -0.3)]V
Duration of Output Short Circuit (Note 2). . . . . . . . . . . . . . Unlimited
Thermal Resistance (Typical, Note 3)
θ
( C/W)
θ
( C/W)
JA
JC
SOIC Package . . . . . . . . . . . . . . . . . . .
Metal Can Package . . . . . . . . . . . . . . .
8 Lead PDIP Package . . . . . . . . . . . . .
14 Lead PDIP Package . . . . . . . . . . . .
160
160
120
80
N/A
75
N/A
N/A
o
Maximum Junction Temperature (Hermetic Packages). . . . . . . .175 C
Maximum Junction Temperature (Plastic Package) . . . . . . . .150 C
Maximum Storage Temperature Range. . . . . . . . . . -65 C to 150 C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300 C
Operating Conditions
o
Temperature Range
ICL76XXM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 C to 125 C
ICL76XXC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 C to 70 C
o
o
o
o
o
o
o
(SOIC - Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Long term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time.
2. The outputs may be shorted to ground or to either supply, for V
exceeded.
≤10V. Care must be taken to insure that the dissipation rating is not
SUPPLY
3. θ is measured with the component mounted on an evaluation PC board in free air.
JA
Electrical Specifications
V
= ±5V, Unless Otherwise Specified
SUPPLY
ICL7621A
ICL7621B
ICL7621D
TEST
CONDITIONS
TEMP.
( C)
o
PARAMETER
SYMBOL
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Input Offset Voltage
V
R
R
≤ 100kΩ
≤ 100kΩ
25
-
-
-
-
-
2
3
-
-
-
-
-
-
5
7
-
-
-
-
-
-
15
20
-
mV
mV
OS
S
S
Full
-
o
Temperature
∆V /∆T
OS
10
15
25
µV/ C
Coefficient of V
OS
Input Offset Current
I
25
0 to 70
-55 to 125
25
-
0.5
30
300
800
50
-
0.5
-
30
300
800
50
-
0.5
-
30
300
800
50
pA
pA
pA
pA
pA
pA
V
OS
-
-
-
-
-
-
-
-
Input Bias Current
I
-
1.0
-
1.0
-
1.0
BIAS
0 to 70
-55 to 125
25
-
-
-
-
-
400
4000
-
-
-
-
-
-
400
4000
-
-
-
-
-
-
400
4000
-
Common Mode Voltage
Range
V
I
I
= 100µA
= 100µA,
±4.2
±4.2
±4.2
CMR
Q
Output Voltage Swing
V
25
±4.9
±4.8
-
-
-
-
-
-
-
-
-
-
-
-
±4.9
±4.8
±4.5
-
-
-
-
-
-
-
-
-
-
-
-
±4.9
±4.8
±4.5
80
75
68
-
-
-
-
-
-
-
-
-
-
-
V
V
OUT
Q
R = 100kΩ
L
0 to 70
-
-55 to 125 ±4.5
-
102
-
V
Large Signal
Voltage Gain
A
V
R
I
= ±4.0V,
= 100kΩ ,
= 100µA
25
86 102
80 102
dB
dB
dB
MHz
Ω
VOL
O
L
0 to 70
80
-
-
75
68
-
-
-
Q
-55 to 125 74
-
Unity Gain Bandwidth
Input Resistance
GBW
I
= 100µA
25
25
25
-
-
0.48
0.48
0.48
Q
12
12
12
R
10
-
10
-
10
IN
Common Mode
Rejection Ratio
CMRR
R
I
≤ 100kΩ,
76
91
70
91
70
91
dB
S
= 100µA
Q
Power Supply
Rejection Ratio
PSRR
R
≤ 100kΩ,
= 100µA
25
80
86
-
80
86
-
80
86
-
dB
S
I
Q
(V
SUPPLY
= ±8V to ±2V)
Input Referred Noise
Voltage
e
R
= 100Ω,
S
25
25
25
-
-
-
100
-
-
-
-
-
100
-
-
-
-
-
100
0.01
0.1
-
-
nV/√Hz
pA/√Hz
mA
N
f = 1kHz
Input Referred Noise
Current
i
R
= 100Ω,
0.01
0.01
N
S
f = 1kHz
Supply Current
(Per Amplifier)
I
No Signal, No Load,
0.1 0.25
0.1 0.25
0.25
SUPPLY
I
= 100µA
Q
2
ICL7621, ICL7641, ICL7642
Electrical Specifications
V
= ±5V, Unless Otherwise Specified (Continued)
SUPPLY
ICL7621A
ICL7621B
ICL7621D
TEST
CONDITIONS
TEMP.
( C)
o
PARAMETER
SYMBOL
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Channel
V
/V
A
= 100
25
-
120
-
-
120
-
-
120
-
dB
O1 O2
V
Separation
Slew Rate
SR
A
= 1, C = 100pF,
25
-
0.16
-
-
0.16
-
-
0.16
-
V/µs
V
L
V
= 8VP-P,
IN
= 100µA,
I
Q
R = 100kΩ
L
Rise Time
t
V
C
= 50mV,
= 100pF,
= 100µA,
25
25
-
-
2
-
-
-
-
2
-
-
-
-
2
-
-
µs
R
IN
L
I
Q
R = 100kΩ
L
Overshoot
Factor
OS
V
C
= 50mV,
= 100pF,
10
10
10
%
IN
L
I
= 100µA,
Q
R = 100kΩ
L
Electrical Specifications
V
= ±5V, Unless Otherwise Specified
SUPPLY
ICL7641E, ICL7642E
TEST
CONDITIONS
TEMP.
( C)
o
PARAMETER
SYMBOL
MIN
-
TYP
MAX
UNITS
mV
Input Offset Voltage
V
R
R
≤ 100kΩ
≤ 100kΩ
25
Full
-
-
-
20
OS
S
S
-
25
mV
o
Temperature Coefficient of V
Input Offset Current
∆V /∆T
OS
-
30
0.5
-
-
µV/ C
OS
I
25
-
30
pA
pA
pA
pA
pA
pA
V
OS
0 to 70
-
300
-55 to 125
25
-
800
Input Bias Current
I
-
1.0
50
BIAS
0 to 70
-55 to 125
25
-
-
500
-
-
4000
Common Mode Voltage Range
Output Voltage Swing
V
I
I
= 10µA, ICL7642
±4.4
±3.7
±4.9
±4.8
±4.7
±4.5
±4.3
±4.0
80
75
68
76
72
68
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CMR
Q
Q
= 1mA, ICL7641
25
-
V
V
ICL7642, I = 10µA, R = 1MΩ
25
-
V
OUT
Q
L
0 to 70
-55 to 125
25
-
V
-
V
ICL7641, I = 1mA, R = 10kΩ
-
V
Q
L
0 to 70
-55 to 125
25
-
V
-
V
Large Signal Voltage Gain
A
ICL7642, V = ±4V, R = 1MΩ,
104
dB
dB
dB
dB
dB
dB
MHz
MHz
Ω
VOL
O
L
I
= 10µA
Q
0 to 70
-55 to 125
25
-
-
98
-
ICL7641, V = ±4V, R = 10kΩ, I = 1mA
O
L
Q
0 to 70
-55 to 125
25
-
Unity Gain Bandwidth
GBW
ICL 7642, I = 10µA
0.044
1.4
Q
ICL 7641, I = 1mA
25
-
Q
12
Input Resistance
R
25
-
10
IN
Common Mode Rejection Ratio
CMRR
ICL7642, R ≤ 100kΩ, I = 10µA
25
70
60
80
70
96
87
94
77
dB
dB
dB
dB
S
Q
ICL7641, R ≤ 100kΩ, I = 1mA
25
S
Q
Power Supply Rejection Ratio
PSRR
ICL7642, R ≤ 100kΩ, I = 10µA
25
S
Q
(V
= ±8V to ±2V)
SUPPLY
ICL7641, R ≤ 100kΩ, I = 1mA
25
S
Q
3
ICL7621, ICL7641, ICL7642
Electrical Specifications
V
= ±5V, Unless Otherwise Specified (Continued)
SUPPLY
ICL7641E, ICL7642E
TEST
CONDITIONS
TEMP.
( C)
o
PARAMETER
SYMBOL
MIN
TYP
100
0.01
0.01
1.0
MAX
UNITS
nV/√Hz
pA/√Hz
mA
Input Referred Noise Voltage
Input Referred Noise Current
e
R
R
= 100Ω, f = 1kHz
= 100Ω, f = 1kHz
25
25
25
25
25
25
25
25
25
25
25
-
-
-
-
-
-
-
-
-
-
-
-
N
S
S
i
-
N
Supply Current (Per Amplifier)
(No Signal, No Load)
I
ICL7642, I = 10µA Low Bias
0.03
SUPPLY
Q
ICL7641, I = 1mA High Bias
2.5
mA
Q
Channel Separation
V
/V
A
= 100
120
0.016
1.6
-
-
-
-
-
-
-
dB
O1 O2
V
Slew Rate (A = 1, C = 100pF,
SR
ICL7642, I = 10µA, R = 1MΩ
V/µs
V/µs
µs
V
L
Q
L
V
= 8VP-P)
IN
ICL7641, I = 1mA, R = 10kΩ
Q
L
Rise Time
(V = 50mV, C = 100pF)
t
ICL7642, I = 10µA, R = 1MΩ
20
R
Q
L
IN
L
ICL7641, I = 1mA, R = 10kΩ
0.9
µs
Q
L
Overshoot Factor
(V = 50mV, C = 100pF)
OS
ICL7642, I = 10µA, R = 1MΩ
5
%
Q
L
IN
L
ICL7641, I = 1mA, R = 10kΩ
40
%
Q
L
Schematic Diagram
I
Q
SETTING STAGE
INPUT STAGE
OUTPUT STAGE
V+
A
C
900K
3K
Q
3K
Q
P5
6.3V
Q
P7
V-
Q
100K
P8
Q
P6
P1
Q
P2
Q
Q
P3
P4
V+
Q
P9
Q
N2
+INPUT
Q
N1
C
= 9pF
FF
OUTPUT
V-
V+
C
= 33pF
C
-INPUT
Q
Q
N9
N7
Q
N10
Q
Q
Q
N11
N4
N6
V-
Q
N5
6.3V
V+
Q
N3
TABLE OF JUMPERS
I
Q
E
Q
N8
ICL7621
ICL7641
ICL7642
C, E
C, G
A, E
100µA
1mA
G
V-
10µA
Application Information
4-layer structure has characteristics similar to an SCR, and
under certain circumstances may be triggered into a low
impedance state resulting in excessive supply current. To
avoid this condition, no voltage greater than 0.3V beyond the
supply rails may be applied to any pin. In general, the op
amp supplies must be established simultaneously with, or
before any input signals are applied. If this is not possible,
the drive circuits must limit input current flow to 2mA to
prevent latchup.
Static Protection
All devices are static protected by the use of input diodes.
However, strong static fields should be avoided, as it is
possible for the strong fields to cause degraded diode
junction characteristics, which may result in increased input
leakage currents.
Latchup Avoidance
Junction-isolated CMOS circuits employ configurations
which produce a parasitic 4-layer (PNPN) structure. The
4
ICL7621, ICL7641, ICL7642
Typical Operating Characteristics). During the transition from
Class A to Class B operation, the output transfer
characteristic is nonlinear and the voltage gain decreases.
Choosing the Proper I
Q
Each device in the ICL76XX family has a similar I setup
Q
scheme, which allows the amplifier to be set to nominal
quiescent currents of 10µA, 100µA or 1mA. These current
settings change only very slightly over the entire supply
voltage range. The ICL7611/12 have an external I control
terminal, permitting user selection of each amplifiers’
quiescent current. The ICL7621 and ICL7641/7642 have
Frequency Compensation
The ICL76XX are internally compensated, and are stable
for closed loop gains as low as unity with capacitive loads
up to 100pF.
Q
fixed I settings:
Q
Operation At V
= ±1V
SUPPLY
= ±1V is guaranteed for the
Operation at V
SUPPLY
ICL7621 (Dual) - I = 100µA
Q
ICL7642C only.
Output swings to within a few millivolts of the supply rails are
achievable for R ≥ 1MΩ. Guaranteed input CMVR is ±0.6V
ICL7641 (Quad) - I = 1mA
Q
ICL7642 (Quad) - I = 10µA
Q
L
minimum and typically +0.9V to -0.7V at V
= ±1V. For
SUPPLY
NOTE: The output current available is a function of the
applications where greater common mode range is
desirable, refer to the ICL7612 data sheet.
quiescent current setting. For maximum peak-to-peak output
voltage swings into low impedance loads, I of 1mA should
Q
be selected.
Typical Applications
Output Stage and Load Driving Considerations
The user is cautioned that, due to extremely high input
impedances, care must be exercised in layout, construction,
board cleanliness, and supply filtering to avoid hum and
noise pickup.
Each amplifiers’ quiescent current flows primarily in the
output stage. This is approximately 70% of the I settings.
Q
This allows output swings to almost the supply rails for
output loads of 1MΩ, 100kΩ, and 10kΩ, using the output
stage in a highly linear class A mode. In this mode,
crossover distortion is avoided and the voltage gain is
maximized. However, the output stage can also be operated
in Class AB for higher output currents. (See graphs under
Note that in no case is I shown. The value of I must be
Q
Q
chosen by the designer with regard to frequency response
and power dissipation.
+5
+5
ICL76XX
V
+
IN
V
V
-
IN
ICL76XX
OUT
-
V
OUT
R
≥ 10kΩ
+
TO CMOS OR
LPTTL LOGIC
L
100kΩ
1MΩ
FIGURE 1. SIMPLE FOLLOWER
FIGURE 2. LEVEL DETECTOR
-
1MΩ
-
1/2
ICL7621
1/2
+
ICL7621
1µF
+
1MΩ
+
-
1MΩ
V-
V+
V
ICL76XX
OUT
DUTY CYCLE
λ
+
680kΩ
WAVEFORM GENERATOR
NOTE: Since the output range swings exactly from rail to rail, fre-
quency and duty cycle are virtually independent of power supply
variations.
NOTE: Low leakage currents allow integration times up to
several hours.
FIGURE 3. PHOTOCURRENT INTEGRATOR
FIGURE 4. TRIANGLE/SQUARE WAVE GENERATOR
5
ICL7621, ICL7641, ICL7642
1MΩ
+8V
V+
V-
V
OH
0.5µF
2.2MΩ
20kΩ
20kΩ
TO
o
T
= 125 C
V
A
10kΩ
+
IN
SUCCEEDING
INPUT
STAGE
+
1/2
10µF
1.8k = 5%
ICL7621
OUT
-
SCALE
-
V
OL
ADJUST
-
V+
1/2
ICL7621
COMMON
-8V
+
FIGURE 5. AVERAGING AC TO DC CONVERTER FOR A/D
CONVERTERS SUCH AS ICL7106, ICL7107,
ICL7109, ICL7116, ICL7117
FIGURE 6. BURN-IN AND LIFE TEST CIRCUIT
0.2µF
0.2µF
0.2µF
30kΩ
160kΩ
+
680kΩ
100kΩ
51kΩ
0.1µF
1/2
+
1/2
ICL7621
-
ICL7621
-
360kΩ
1MΩ
INPUT
0.1µF
0.2µF
OUTPUT
360kΩ
1MΩ
NOTE 4
NOTE 4
NOTES:
4. Small capacitors (25 - 50pF) may be needed for stability in some cases.
5. The low bias currents permit high resistance and low capacitance values to be used to achieve low frequency cutoff. f = 10Hz, AV = 4,
C
CL
Passband ripple = 0.1dB.
FIGURE 7. FIFTH ORDER CHEBYCHEV MULTIPLE FEEDBACK LOW PASS FILTER
Typical Performance Curves
4
3
2
10K
10
10
10
o
= 25 C
NO LOAD
T
V+ - V- = 10V
NO LOAD
NO SIGNAL
A
I
= 1mA
Q
NO SIGNAL
I
I
= 1mA
Q
1K
100
10
I
= 100µA
Q
= 100µA
= 10µA
Q
I=10µA
Q
I
Q
10
1
1
-50
-25
0
25
50
75
o
100
125
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
FREE-AIR TEMPERATURE ( C)
FIGURE 8. SUPPLY CURRENT PER AMPLIFIER vs SUPPLY
VOLTAGE
FIGURE 9. SUPPLY CURRENT PER AMPLIFIER vs FREE-AIR
TEMPERATURE
6
ICL7621, ICL7641, ICL7642
Typical Performance Curves (Continued)
1000
100
10
1000
100
10
V
= 10V
= 8V
SUPPLY
V
= ±5V
S
V
OUT
R
Q
= 1MΩ
= 10µA
L
I
R
I
= 100kΩ
= 100µA
L
Q
R
I
= 10kΩ
= 1mA
L
Q
1.0
1
0.1
-75
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
o
100
125
o
FREE-AIR TEMPERATURE ( C)
FREE-AIR TEMPERATURE ( C)
FIGURE 10. INPUT BIAS CURRENT vs TEMPERATURE
FIGURE 11. LARGE SIGNAL DIFFERENTIAL VOLTAGE GAIN
vs FREE-AIR TEMPERATURE
7
105
10
o
V
= 10V
SUPPLY
T
= 25 C
A
6
5
4
3
2
100
95
90
85
80
75
70
V
= 15V
10
10
10
10
10
SUPPLY
I
= 10µA
Q
I
= 100µA
Q
I
= 100µA
Q
I
= 1mA
0
Q
I
= 1mA
Q
45
90
PHASE SHIFT
(I = 1mA)
Q
135
I
= 10µA
Q
10
1
180
1M
0.1
1.0
10
100
1K
10K
100K
-75
-50
-25
0
25
50
75
100
125
o
FREQUENCY (Hz)
FREE-AIR TEMPERATURE ( C)
FIGURE 12. LARGE SIGNAL FREQUENCY RESPONSE
FIGURE 13. COMMON MODE REJECTION RATIO vs FREE-AIR
TEMPERATURE
100
600
o
= 25 C
T
V
= 10V
A
I
= 1mA
SUPPLY
Q
3V ≤ V
≤ 16V
SUPPLY
95
90
85
80
75
70
65
500
400
300
200
100
0
I
= 100µA
= 10µA
Q
I
Q
-75
-50
-25
0
25
50
75
100
125
10
100
1K
FREQUENCY (Hz)
10K
100K
o
FREE-AIR TEMPERATURE ( C)
FIGURE 14. POWER SUPPLY REJECTION RATIO vs FREE-AIR
TEMPERATURE
FIGURE 15. EQUIVALENT INPUT NOISE VOLTAGE vs
FREQUENCY
7
ICL7621, ICL7641, ICL7642
Typical Performance Curves (Continued)
16
14
12
10
8
16
14
12
10
8
o
V
= 10V
T
= 25 C
SUPPLY
= 1mA
A
I
Q
I
I
I
= 1mA
Q
Q
Q
V
SUPPLY
= 10µA
= 100µA
= ±8V
o
T
= -55 C
A
o
V
T
= 25 C
SUPPLY
A
6
6
= ±5V
o
T
= 125 C
A
4
4
2
2
V
SUPPLY
= ±2V
0
0
100
10K
100K
1M
10M
1K
10K
100K
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 16. OUTPUT VOLTAGE vs FREQUENCY
FIGURE 17. OUTPUT VOLTAGE vs FREQUENCY
12
10
8
16
o
= 25 C
T
A
R
= 100kΩ
L
14
12
10
8
R
= 10kΩ
L
R
= 100kΩ - 1MΩ
L
6
R
= 2kΩ
L
R
= 10kΩ
L
4
6
V
= 10V
-25
SUPPLY
= 1mA
2
I
Q
4
0
-75
-50
0
25
50
75
100
125
2
4
6
8
10
12
14
16
o
SUPPLY VOLTAGE (V)
FREE-AIR TEMPERATURE ( C)
FIGURE 18. OUTPUT VOLTAGE vs SUPPLY VOLTAGE
FIGURE 19. OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE
0.01
40
30
20
10
0
I
= 1mA
Q
I
= 10µA
Q
0.1
1.0
10
I
= 100µA
Q
I
= 1mA
14
Q
0
2
4
6
8
10
12
16
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 20. OUTPUT SOURCE CURRENT vs SUPPLY VOLTAGE
FIGURE 21. OUTPUT SINK CURRENT vs SUPPLY VOLTAGE
8
ICL7621, ICL7641, ICL7642
Typical Performance Curves (Continued)
16
14
12
10
8
8
6
o
o
T
= 25 C
T
R
= 25 C, V
= 10V
SUPPLY
A
A
V+ - V- = 10V
= 1mA
= 10kΩ , C = 100pF
L
L
I
Q
4
2
OUTPUT
0
6
-2
-4
-6
4
INPUT
2
0
0.1
0
2
4
6
8
10
12
1.0
10
100
TIME (µs)
LOAD RESISTANCE (kΩ)
FIGURE 22. OUTPUT VOLTAGE vs LOAD RESISTANCE
FIGURE 23. VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE (I = 1mA)
Q
8
8
6
o
= 25 C, V
o
T
R
= 10V
SUPPLY
T
R
= 25 C, V
= 10V
A
A
SUPPLY
= 100kΩ, C = 100pF
= 1MΩ, C = 100pF
6
4
L
L
L
L
4
2
2
OUTPUT
OUTPUT
0
0
INPUT
-2
-4
-6
-2
-4
-6
INPUT
0
200
400
600
800
1000
1200
0
20
40
60
80
100
120
TIME (µs)
TIME (µs)
FIGURE 24. VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE (I = 100µA)
FIGURE 25. VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE (I = 10µA)
Q
Q
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out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
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9
相关型号：
ICL7621BCPA+
Operational Amplifier, 2 Func, 7000uV Offset-Max, CMOS, PDIP8, LEAD FREE, PLASTIC, DIP-8
MAXIM
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