GENERAL PURPOSE J-FET
SINGLE OPERATIONAL AMPLIFIER
.
WIDE COMMON-MODE (UP TO V
CC
+
) AND
DIFFERENTIAL VOLTAGE RANGE
.
LOW INPUT BIAS AND OFFSET CURRENT
.
OUTPUT SHORT-CIRCUIT PROTECTION
.
HIGH INPUT IMPEDANCE JFET INPUT
STAGE
.
INTERNAL FREQUENCY COMPENSATION
.
LATCH UP FREE OPERATION
.
HIGH SLEW RATE : 16V/
s (typ)
N
DIP8
(Plastic Package)
1
2
3
4
8
6
5
7
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.
PIN CONNECTIONS (top view)
DESCRIPTION
The TL081, TL081A and TL081B are high speed
JFET inputsingle operationalamplifiers incorporating
well matched, high voltage JFET 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.
TL081
TL081A - TL081B
December 1998
D
SO8
(Plastic Micropackage)
ORDER CODES
Part Number
Temperature
Range
Package
N
D
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
1/9
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
0 to 70
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.
Output
Non-inverting
input
Inver ting
input
V
CC
V
CC
100
1.3k
30k
35k
3 5k
100
1.3k
8.2k
Offset Null1
Offset Null2
100
200
SCHEMATIC DIAGRAM
N1
N2
TL081
100k
V
CC
INPUT OFFSET VOLTAGE NULL CIRCUITS
TL081 - TL081A - TL081B
2/9
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
)
T
amb
= 25
o
C
TL081
TL081A
TL081B
T
min.
T
amb
T
max.
TL081
TL081A
TL081B
3
3
1
10
6
3
13
7
5
3
10
13
mV
DV
io
Input Offset Voltage Drift
10
10
V/
o
C
I
io
Input Offset Current *
T
amb
= 25
o
C
T
min.
T
amb
T
max.
5
100
4
5
100
4
pA
nA
I
ib
Input Bias Current *
T
amb
= 25
o
C
T
min.
T
amb
T
max.
20
200
20
20
400
20
pA
nA
A
vd
Large Signal Voltage Gain (R
L
= 2k
, V
O
=
10V)
T
amb
= 25
o
C
T
min.
T
amb
T
max.
50
25
200
25
15
200
V/mV
SVR
Supply Voltage Rejection Ratio (R
S
= 50
)
T
amb
= 25
o
C
T
min.
T
amb
T
max.
80
80
86
70
70
86
dB
I
CC
Supply Current, no Load
T
amb
= 25
o
C
T
min.
T
amb
T
max.
1.4
2.5
2.5
1.4
2.5
2.5
mA
V
icm
Input Common Mode Voltage Range
11
+15
-12
11
+15
-12
V
CMR
Common Mode Rejection Ratio (R
S
= 50
)
T
amb
= 25
o
C
T
min.
T
amb
T
max.
80
80
86
70
70
86
dB
Ios
Output Short-circuit Current
T
amb
= 25
o
C
T
min.
T
amb
T
max.
10
10
40
60
60
10
10
40
60
60
mA
V
OPP
Output Voltage Swing
T
amb
= 25
o
C
R
L
=
2k
R
L
= 10k
T
min.
T
amb
T
max.
R
L
=
2k
R
L
= 10k
10
12
10
12
12
13.5
10
12
10
12
12
13.5
V
SR
Slew Rate (V
in
= 10V, R
L
= 2k
,
C
L
= 100pF,
T
amb
= 25
o
C, unity gain)
8
16
8
16
V/
s
t
r
Rise Time (V
in
= 20mV, R
L
= 2k
, C
L
= 100pF,
T
amb
= 25
o
C, unity gain)
0.1
0.1
s
K
OV
Overshoot (V
in
= 20mV, R
L
= 2k
, C
L
= 100pF,
T
amb
= 25
o
C, unity gain)
10
10
%
GBP
Gain Bandwidth Product (f = 100kHz,
T
amb
= 25
o
C, V
in
= 10mV, R
L
= 2k
, C
L
=
100pF)
2.5
4
2.5
4
MHz
R
i
Input Resistance
10
12
10
12
THD
Total Harmonic Distortion (f = 1kHz, A
V
= 20dB,
R
L
= 2k
, 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
)
15
15
nV
Hz
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.
TL081 - TL081A - TL081B
3/9
30
20
25
15
10
5
0
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V
)
100
1K
10K
100K
10M
1M
FREQUENCY (Hz)
S ee Figure 2
= 2 k
R
L
= + 25
C
T
a m b
=
15V
V
CC
=
5V
V
CC
=
10V
V
CC
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
30
20
25
15
10
5
0
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V)
100
1K
10K
100K
10M
1M
FREQUENC Y (Hz)
S e e Figure 2
= +25 C
T
a mb
= 10k
R
L
V
CC
=
10V
V
CC
=
15V
V
CC
=
5V
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
30
25
20
15
10
5
0
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V)
FREQUENCY (Hz)
10k
40k
100k
400k
1M
4M
10M
T
amb
= +25 C
T
a mb
= -55 C
T
a mb
= +125 C
R
L
= 2k
S ee Figure 2
V
CC
=
15 V
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREQUENCY
3 0
2 5
2 0
1 0
5
1 5
0
- 7 5
- 2 5
2 5
7 5
1 2 5
- 5 0
0
5 0
- 5 0
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V)
T E MP ER AT U R E (
C )
V
C C
=
1 5 V
Se e F i gu re 2
R
L
= 1 0 k
R
L
= 2 k
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS FREE AIR TEMP.
30
25
20
15
10
5
0
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V)
0.1 0.2
0.4
0.7 1
2
4
7
10
T
amb
= +25
C
V
CC
=
15V
See Figure 2
LOAD RESISTANCE (k
)
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS LOAD RESISTANCE
30
25
20
15
10
5
0
2
4
6
8
10
12
14
16
MAXIMUM
PEAK-TO-PEAK
OUTPUT
VOLTAGE
(V)
R
L
= 10 k
T
amb
= +25
C
SUPPLY VOLTAGE (
V)
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE VERSUS SUPPLY VOLTAGE
TL081 - TL081A - TL081B
4/9
100
10
1
0.1
0.01
INPUT
BIAS
CURRENT
(nA)
-50
-25
0
25
50
75
100
125
TEMPERATURE (
C)
V
CC
=
15V
INPUT BIAS CURRENT VERSUS
FREE AIR TEMPERATURE
1000
400
200
100
20
40
10
4
2
1
DIFFERENTIAL
VOLTAGE
AMPLIFICATION
(V/V)
-75
-50
-25
0
25
50
75
100
125
TEMPERATURE (
C)
R
L
= 2k
V
O
=
10V
V
CC
=
15V
LARGE SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION VERSUS
FREE AIR TEMPERATURE
FREQUENCY (Hz)
DIFFERENTIAL
VOLTAGE
AMPLIFICATION
(V/V)
100
10
100
1K
10K
100K
10M
1M
1
DIFF ERENTIAL
VOLTAGE
AMPLIFICATION
(le fts ca le )
180
90
0
R
= 2k
C
= 100pF
V
= 15V
T
= +125 C
L
L
CC
a mb
P HASE SHIFT
(right sca le)
LARGE SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION AND PHASE
SHIFT VERSUS FREQUENCY
250
225
200
175
150
125
100
75
50
25
0
TOTAL
POWER
DISSIPATION
(mW)
-75
-50
-25
0
25
50
75
100
125
TEMPERATURE (
C)
V
CC
=
15V
No signal
No load
TOTAL POWER DISSIPATION VERSUS
FREE AIR TEMPERATURE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
SUPPLY
CURRENT
(mA)
-75
-50
-25
0
25
50
75
100
125
TEMPERATURE (
C)
V
CC
=
15V
No signal
No load
SUPPLY CURRENT PER AMPLIFIER
VERSUS FREE AIR TEMPERATURE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
SUPPLY
CURRENT
(mA)
2
4
6
8
10
12
14
16
No signal
No load
= +25
C
T
amb
SUPPLY VOLTAGE (
V)
SUPPLY CURRENT PER AMPLIFIER
VERSUS SUPPLY VOLTAGE
TL081 - TL081A - TL081B
5/9
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