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GENERAL PURPOSE SINGLE JFET OP-AMPS
TL081
TL081A - TL081B
GENERAL PURPOSE J-FET
SINGLE OPERATIONAL AMPLIFIER
. WIDE COMMON-MODE (UP TO V CC + )AND
DIFFERENTIAL VOLTAGE RANGE
. HIGH INPUT IMPEDANCE J–FET INPUT
STAGE
. INTERNAL FREQUENCY COMPENSATION
. LATCH UP FREE OPERATION
. HIGH SLEW RATE : 16V/ m s (typ)
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
DESCRIPTION
The TL081, TL081A and TL081B are high speed
J–FET inputsingle operationalamplifiers incorporating
well matched, high voltage J–FET and bipolar transis-
tors in a monolithic integrated circuit.
The devicesfeaturehigh slew rates, low input bias and
offset currents, and low offset voltage temperature
coefficient.
ORDER CODES
Part Number
Temperature
Range
Package
ND
TL081M/AM/BM
–55 o C, +125 o C
•
•
TL081I/AI/BI
–40 o C, +105 o C
•
•
TL081C/AC/BC
0 o C, +70 o C
•
•
Examples : TL081CD, TL081IN
PIN CONNECTIONS (top view)
1
8
1 - Offset Null 1
2 - Inverting input
3 - Non-inverting input
4-V CC -
5 - Offset Null 2
6 - Output
7-V CC +
8 - N.C.
2
7
3
6
4
5
October 1997
1/9
. LOW INPUT BIAS AND OFFSET CURRENT
. OUTPUT SHORT-CIRCUIT PROTECTION
140642622.002.png
TL081 - TL081A - TL081B
SCHEMATIC DIAGRAM
V CC
Non-inverting
input
Inver ting
input
100
W
200
W
Output
100
W
30k
8.2k
1.3k
35k
1.3k
35k
100
W
V CC
Offset Null1
Offset Null2
INPUT OFFSET VOLTAGE NULL CIRCUITS
TL081
N1
N2
100k
W
V CC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V CC
Supply Voltage - (note 1)
18
V
V i
Input Voltage - (note 3)
± 15
V
V id
Differential Input Voltage - (note 2)
30
V
P tot
Power Dissipation
680
mW
Output Short-circuit Duration - (note 4)
Infinite
T oper
Operating Free Air Temperature Range
TL081C,AC,BC
TL081I,AI,BI
TL081M,AM,BM
0to70
–40 to 105
–55 to 125
o C
T stg
Storage Temperature Range
–65 to 150
o C
Notes :
1. 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 V CC + and V CC – .
2. Differential voltages are at the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less.
4. 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.
2/9
±
±
140642622.003.png
TL081 - TL081A - TL081B
ELECTRICAL CHARACTERISTICS
V CC = ± 15V, T amb =25 o C (unless otherwise specified)
Symbol
Parameter
TL081I,M,AC,AI,
AM,BC,BI,BM
TL081C
Unit
Min. Typ. Max. Min. Typ. Max.
V io
Input Offset Voltage (R S =50
W
)
mV
3
1
6
3
7
5
3
10
TL081BC,BI,BM
T min.
3
T amb
3
T max.
13
TL081BC,BI,BM
DV io
Input Offset Voltage Drift
10
10
m
V/ o C
I io
Input Offset Current *
T amb =25 o C
T min.
5
100
4
5
100
4
pA
nA
3
T amb
3
T max.
I ib
Input Bias Current *
T amb =25 o C
T min.
20
200
20
20
400
20
pA
nA
3
T amb
3
T max.
A vd
Large Signal Voltage Gain (R L =2k
W
,V O =
±
10V)
V/mV
50
25
200
25
15
200
3
T amb
3
T max.
SVR
Supply Voltage Rejection Ratio (R S =50
W
)
dB
80
80
86
70
70
86
3
T amb
3
T max.
I CC
Supply Current, no Load
T amb =25 o C
T min.
mA
1.4
2.5
2.5
1.4
2.5
2.5
3
T amb
3
T max.
V icm
Input Common Mode Voltage Range
±
11 +15
-12
11 +15
-12
V
CMR
Common Mode Rejection Ratio (R S =50
W
)
dB
80
80
86
70
70
86
3
T amb
3
T max.
Ios
Output Short-circuit Current
T amb =25 o C
T min.
mA
10
10
40
60
60
10
10
40
60
60
3
T amb
3
T max.
± V OPP Output Voltage Swing
T amb =25 o C
V
R L =2k
W
10
12
10
12
12
13.5
10
12
10
12
12
13.5
R L = 10k
W
T min.
3
T amb
3
T max.
R L =2k
W
R L = 10k
W
SR
Slew Rate (V in = 10V, R L =2k
W,
C L = 100pF,
V/
m
s
8
16
8
16
t r
Rise Time (V in = 20mV, R L =2k
W
,C L = 100pF,
m
s
0.1
0.1
K OV
Overshoot (V in = 20mV, R L =2k
W
,C L = 100pF,
%
10
10
GBP
Gain Bandwidth Product (f = 100kHz,
T amb =25 o C, V in = 10mV, R L =2k
W
,C L =
100pF)
2.5
4
2.5
4
MHz
R i
Input Resistance
10 12
10 12
W
THD
Total Harmonic Distortion (f = 1kHz, A V = 20dB,
R L =2k
W
,C L = 100pF, T amb =25 o C, V O =2V PP )
0.01
0.01
%
e n
Equivalent Input Noise Voltage
(f = 1kHz, R s = 100
W
)
15
15
nV
/```
m Phase Margin 45 45 Degrees
* The input bias currents are junction leakage currents which approximately double for every 10 o C increase in the junction temperature.
3/9
T amb =25 o C
T amb =25 o C
T min.
T amb =25 o C
T min.
±
T amb =25 o C
T min.
T amb =25 o C, unity gain)
T amb =25 o C, unity gain)
T amb =25 o C, unity gain)
Hz
j
140642622.004.png
TL081 - TL081A - TL081B
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
30
30
V CC
= 15V
R L
=2k
W
R L
= 10k
W
25
T amb
=+25 ° C
25
V CC = 15V
T amb
=+25 C
See Figure 2
S e e Figure 2
20
20
V CC
= 10V
V CC = 10V
15
15
10
CC
=V
10
V CC = 5V
5
5
0
0
100
1K
10K
100K
1M
10M
100
1K
10K
100K
1M
10M
FREQUENCY (Hz)
FREQUENC Y (Hz)
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREE AIR TEMP.
30
30
T amb =+25 C
V CC
=5V
25
W
S e e Figure 2
25
20
20
15
15
R L = 10k W
R L =2k
T amb =-55 C
W
10
10
5
5
V CC = 15V
See Figure 2
T amb =+125 C
0
0
-75
10k
40k 100k
400k 1M
4M
10M
-50
-25
0
25
50
75
-50
125
FRE QUENCY (Hz)
TEMPER ATURE (
°
C)
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS LOAD RESISTANCE
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS SUPPLY VOLTAGE
30
30
V CC = 15V
See Figure 2
25
T amb =+25 ° C
25
W
T amb = +25 ° C
20
20
15
15
10
10
5
5
0
0.1 0.2
0.4
0.7 1 2
4
7 10
0
2
4
68012 14 16
LOAD RESISTANCE (k
W
)
SUPPLY VOLTAGE (
V)
4/9
R L =2k
R L =10k
140642622.005.png
TL081 - TL081A - TL081B
INPUT BIAS CURRENT VERSUS
FREE AIR TEMPERATURE
LARGE SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION VERSUS
FREE AIR TEMPERATURE
100
1000
400
200
100
V CC = 15V
10
1
40
20
10
4
2
1
V CC = 15V
0.1
V O = 10V
R
L =2k
W
0.01
-75 -50
-25
0
25
50
75 100 125
-50
-25
0
25
50
75
100
125
TEMPERATURE (
°
C)
TEMPERATURE ( ° C)
LARGE SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION AND PHASE
SHIFT VERSUS FREQUENCY
TOTAL POWER DISSIPATION VERSUS
FREE AIR TEMPERATURE
100
DIFF E RE NTIAL
VOLTAGE
AMPLIFICATION
(le ft s ca le )
180
250
225
200
175
150
125
100
75
50
25
0
V CC = 15V
No signal
No load
P HASE SHIFT
(right sca le)
10
90
R=k W
C = 100pF
V=V
T=5 C
1
L
L
CC
amb
0
1K
10K
100K
1M
10M
100
-75 -50
-25
0
25
50
75 100 125
FREQUENCY (Hz)
TEMPERATURE ( ° C)
SUPPLY CURRENT PER AMPLIFIER
VERSUS FREE AIR TEMPERATURE
SUPPLY CURRENT PER AMPLIFIER
VERSUS SUPPLY VOLTAGE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
V CC = 15V
No signal
No load
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
T amb
= +25 ° C
No signal
No load
-75 -50
-25
0
25
50
75 100 125
246810 12 14 16
TEMPERATURE (
°
C)
SUPPLY VOLTAGE ( V)
5/9
140642622.001.png

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