TL081
TL081A - TL081B
GENERAL PURPOSE J-FET
SINGLE OPERATIONAL AMPLIFIERS
■ WIDE COMMON-MODE (UP TO VCC+) AND
DIFFERENTIAL VOLTAGE RANGE
■ LOW INPUT BIAS AND OFFSET CURRENT
■ OUTPUT SHORT-CIRCUIT PROTECTION
■ HIGH INPUT IMPEDANCE J–FET INPUT
N
DIP8
(Plastic Package)
STAGE
■ INTERNAL FREQUENCY COMPENSATION
■ LATCH UP FREE OPERATION
■ HIGH SLEW RATE : 16V/µs (typ)
D
SO8
(Plastic Micropackage)
DESCRIPTION
The TL081, TL081A and TL081B are high speed
J–FET input single operational amplifiers incorporating well matched, high voltage J–FET and bipolar transistors in a monolithic integrated circuit.
The devices feature high slew rates, low input bias
and offset currents, and low offset voltage temperature coefficient.
ORDER CODE
Package
Part Number
Temperature Range
TL081M/AM/BM
-55°C, +125°C
TL081I/AI/BI
-40°C, +105°C
TL081C/AC/BC
0°C, +70°C
Example : TL081CD, TL081IN
N
D
•
•
•
•
•
•
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
12345678-
April 2001
Offset null 1
Inverting input
Non-inverting input
VCCOffset null 2
Output
VCC+
N.C.
1/10
TL081 - TL081A - TL081B
SCHEMATIC DIAGRAM
V
CC
N on-inverting
input
Inverting
input
100 Ω
200 Ω
Output
100 Ω
30k
8.2k
1.3 k
V
1.3k
35 k
3 5k
100 Ω
CC
Offset Null1
Offset Null2
INPUT OFFSET VOLTAGE NULL CIRCUIT
TL081
N1
N2
100k Ω
V CC
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Vi
Parameter
TL081M, AM, BM
Supply voltage - note 1)
Input Voltage - note
2)
Vid
Differential Input Voltage - note
Ptot
Power Dissipation
3)
Output Short-circuit Duration - note 4)
Toper
Operating Free-air Temperature Range
Tstg
Storage Temperature Range
1.
2.
3.
4.
2/10
TL081I, AI, BI
TL081C, AC, BC
Unit
±18
V
±15
V
±30
V
680
mW
Infinite
-55 to +125
-40 to +105
-65 to +150
0 to +70
°C
°C
All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero reference
level is the midpoint between VCC + and VCC -.
The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less.
Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating
is not exceeded
TL081 - TL081A - TL081B
ELECTRICAL CHARACTERISTICS
VCC = ±15V, Tamb = +25°C (unless otherwise specified)
Symbol
TL081I,M,AC,AI,AM,
BC,BI,BM
Parameter
Min.
Input Offset Voltage (Rs = 50Ω)
Tamb = +25°C
Vio
DV io
Input Offset Voltage Drift
Input Offset Current - note
Tamb = +25°C
Tmin ≤ T amb ≤ T max
Iib
Input Bias Current -note 1
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
Max.
3
3
1
10
6
3
13
7
5
Unit
Min.
Typ.
Max.
3
10
mV
TL081
TL081A
TL081B
TL081
TL081A
TL081B
Tmin ≤ Tamb ≤ Tmax
Iio
Typ.
TL081C
13
10
5
100
4
5
100
10
20
200
20
20
400
20
Large Signal Voltage Gain (R L = 2kΩ, Vo = ±10V)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
50
25
200
25
15
200
SVR
Supply Voltage Rejection Ratio (RS = 50Ω)
Tamb = +25°C
Tmin ≤ T amb ≤ Tmax
80
80
86
70
70
86
ICC
Supply Current, no load
Tamb = +25°C
Tmin ≤ T amb ≤ T max
V icm
Input Common Mode Voltage Range
CMR
±Vopp
SR
tr
Kov
GBP
Ri
V/mV
dB
mA
1.4
2.5
2.5
1.4
±11
+15
-12
±11
+15
-12
Common Mode Rejection Ratio (RS = 50Ω)
Tamb = +25°C
T min ≤ Tamb ≤ Tmax
80
80
86
70
70
86
Output Short-circuit Current
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
10
10
40
10
10
40
10
12
10
12
12
13.5
10
12
10
12
12
13.5
8
16
8
16
Output Voltage Swing
Tamb = +25°C
Tmin ≤ T amb ≤ T max
2.5
2.5
V
dB
mA
60
60
60
60
V
RL = 2kΩ
RL = 10kΩ
RL = 2kΩ
RL = 10kΩ
Slew Rate (Tamb = +25°C)
Vin = 10V, RL = 2kΩ, CL = 100pF, unity gain
V/µs
µs
Rise Time (Tamb = +25°C)
Vin = 20mV, RL = 2kΩ, C L = 100pF, unity gain
Overshoot (Tamb = +25°C)
Vin = 20mV, RL = 2kΩ, C L = 100pF, unity gain
Gain Bandwidth Product (Tamb = +25°C)
Vin = 10mV, R L = 2kΩ, CL = 100pF, f= 100kHz
Input Resistance
pA
nA
nA
Avd
Ios
µV/°C
10
1)
0.1
0.1
10
10
%
MHz
2.5
4
1012
2.5
4
1012
Ω
3/10
TL081 - TL081A - TL081B
Symbol
Parameter
TL081I,M,AC,AI,AM,
BC,BI,BM
Min.
THD
en
∅m
1.
4/10
Total Harmonic Distortion (Tamb = +25°C),
f= 1kHz, RL = 2kΩ,CL = 100pF, Av = 20dB,
Vo = 2Vpp
Typ.
Max.
TL081C
Unit
Min.
Typ.
Max.
%
0.01
0.01
Equivalent Input Noise Voltage
R S = 100Ω, f = 1KHz
15
15
nV
-----------Hz
Phase Margin
45
45
degrees
The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature.
TL081 - TL081A - TL081B
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus FREQUENCY
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus FREQUENCY
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus FREE AIR TEMP.
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus LOAD RESISTANCE
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus SUPPLY VOLTAGE
MAXIMUM PEAK-TO-PEAKOUTPUT
VOLTAGE (V)
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus FREQUENCY
30
25
RL = 10 kΩ
Tamb = +25°C
20
15
10
5
0
2
4
6
8
10
12
SUPPLY VOLTAGE ( V)
14
16
5/10
TL081 - TL081A - TL081B
INPUT BIAS CURRENT versus FREE AIR
TEMPERATURE
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION versus FREE AIR TEMP.
100
1000
15V
400
10
DIFFERENTIAL VOLTAGE
AMPLIFICATION(V/V)
INPUT BIAS CURRENT (nA)
V CC =
1
0.1
0.01
-50
200
100
40
20
V CC =
10
4
VO =
2
R
L
= 2k Ω
1
-25
0
25
50
75
100
-75
125
-50
0
25
50
75
100
125
TOTAL POWER DISSIPATION versus FREE AIR
TEMPERATURE
250
100
180
DIFFERENTIAL
VOLTAGE
AMPLIFICATION
(left scale)
PHASE SHIFT
(right sca le)
10
90
R = 2kΩ
L
C L = 10 0p F
V CC = 1 5V
T amb = +12 5 C
1
100
1K
10K
0
100K
1M
10M
TOTAL POWER DISSIPATION(mW)
DIFFERENTIAL VOLTAGE
AMPLIFICATION (V/V)
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT versus
FREQUENCY
V CC = 15V
No signal
No load
225
200
175
150
125
100
75
50
25
0
-75
-50
FREQUENCY (Hz)
V CC =
1.6
No signal
No load
SUPPLY CURRENT (mA)
1.8
15V
1.2
1.0
0.8
0.6
0.4
0.2
0
-75
-50
-25
0
25
50
TEMPERATURE (°C)
0
25
50
75
100
125
SUPPLY CURRENT PER AMPLIFIER versus
SUPPLY VOLTAGE
2.0
1.4
-25
TEMPERATURE (°C)
SUPPLY CURRENT PER AMPLIFIER versus
FREE AIR TEMPERATURE
SUPPLY CURRENT (mA)
-25
TEMPERATURE (°C)
TEMPERATURE (°C)
6/10
15V
10V
75
100
125
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Tamb = +25°C
No signal
No load
2
4
6
10 12
8
SUPPLY VOLTAGE ( V)
14
16
TL081 - TL081A - TL081B
VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE
INPUT AND OUTPUT VOLTAGES
(V)
COMMON MODE REJECTION RATIO versus
FREE AIR TEMPERATURE
COMMON MODE MODE REJECTION
RATIO (dB)
89
R L = 10 kΩ
88
V C C=
15V
87
86
85
84
83
-75
-50
-25
0
25
50
75
100
125
6
4
OUTPUT
INPUT
2
0
VCC = 15V
R L = 2 kΩ
C L= 1 00pF
T amb = +25 C
-2
-4
-6
0
0.5
OUTPUT VOLTAGE versus ELAPSED TIME
2.5
3
3.5
90%
16
12
8
V CC = 15V
R L = 2kΩ
Tamb = +25°C
10%
tr
0
0.1
VCC = 15V
A V = 10
60
EQUIVALENTINPUT NOISE
VOLTAGE (nV/VHz)
OVERSHOOT
20
R S = 100 Ω
T amb = +25°C
50
40
30
20
10
0
0.2
0.3 0.4
0.5
0.6
10
0.7
40
TIME (µ s)
100
400
1k
4k
10k
40k 100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION versus FREQUENCY
1
TOTAL HARMONIC DISTORTION
(%)
OUTPUT VOLTAGE (mV)
2
70
24
-4
1.5
EQUIVALENT INPUT NOISE VOLTAGE versus
FREQUENCY
28
4
0
1
TIME (µs )
TEMPERATURE (°C)
V VCC = = 15V
15V
CC
11
AA
V V= =
VV
6V6V
O (rms) = =
0.4
O (rms)
0.1
0.04
T amb
+25°C
T amb= =
+25°C
0.01
0.004
0.001
100
400
1k
4k
10k
40k
100k
FREQUENCY (Hz)
7/10
TL081 - TL081A - TL081B
PARAMETER MEASUREMENT INFORMATION
Figure 1 : Voltage Follower
Figure 2 : Gain-of-10 Inverting Amplifier
10k
1k
Ω
Ω
-
eI
eo
TL081
RL
TYPICAL APPLICATIONS
(0.5Hz) SQUARE WAVE OSCILLATOR
R
3.3k
Ω
F = 1 00k
Ω
+15V
T L0 8 1
1k Ω
C = 3.3
F
-15V
µF
3.3k
Ω
9.1k
f osc =
HIGH Q NOTCH FILTER
8/10
1
2xR
F
CF
Ω
C L = 100pF
TL081 - TL081A - TL081B
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC DIP
Millimeters
Inches
Dim.
Min.
A
a1
B
b
b1
D
E
e
e3
e4
F
i
L
Z
Typ.
Max.
Min.
3.32
0.51
1.15
0.356
0.204
0.020
0.045
0.014
0.008
0.065
0.022
0.012
0.430
0.384
0.313
2.54
7.62
7.62
3.18
Max.
0.131
1.65
0.55
0.304
10.92
9.75
7.95
Typ.
0.100
0.300
0.300
6.6
0260
5.08
3.81
1.52
0.200
0.150
0.060
0.125
9/10
TL081 - TL081A - TL081B
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC MICROPACKAGE (SO)
Millimeters
Inches
Dim.
Min.
A
a1
a2
a3
b
b1
C
c1
D
E
e
e3
F
L
M
S
Typ.
Max.
Min.
Typ.
Max.
0.1
1.75
0.25
1.65
0.004
0.069
0.010
0.065
0.65
0.35
0.19
0.25
0.85
0.48
0.25
0.5
0.026
0.014
0.007
0.010
0.033
0.019
0.010
0.020
4.8
5.8
5.0
6.2
0.189
0.228
0.197
0.244
45° (typ.)
1.27
3.81
3.8
0.4
0.050
0.150
4.0
1.27
0.6
0.150
0.016
0.157
0.050
0.024
8° (max.)
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
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10/10
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