Fase
Input Operational Amplifier
General Description
The TL081 is a low cost high speed JFET input operational
amplifier with an internally trimmed input offset voltage
(BI-FET IITM technology) The device requires a low supply
current and yet maintains a large gain bandwidth product
and a fast slew rate In addition well matched high voltage
JFET input devices providevery low input bias and offset
currents The TL081 is pin compatible with the standard
LM741 and uses the same offset voltage adjustment circuitry This feature allows designers to immediately upgrade the
overall performance of existing LM741 designs
The TL081 may be used in applications such as high speed
integrators fast D A converters sample-and-hold circuits
and many other circuitsrequiring low input offset voltage
low input bias current high input impedance high slew rate
and wide bandwidth The devices has low noise and offset
voltage drift but for applications where these requirements
are critical the LF356 is recommended If maximum supply
current is important however the TL081C is the better
choice
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Internally trimmedoffset voltage
Low input bias current
Low input noise voltage
Low input noise current
Wide gain bandwidth
High slew rate
Low supply current
High input impedance
Low total harmonic distortion AV e 10
RL e 10k VO e 20 Vp-p
BW e 20 Hzb20 kHz
Low 1 f noise corner
Fast settling time to 0 01%
15 mV
50 pA
25 nV 0Hz
0 01 pA 0Hz
4 MHz
13 V ms
1 8 mA
1012X
k 0 02%
50 Hz
2 msSimplified Schematic
Typical Connection
TL H 8358 – 1
Connection Diagram
TL H 8358 – 2
Dual-In-Line Package
TL H 8358 – 4
Order Number TL081CP
See NS Package Number N08E
BI-FET IITM is a trademark of National Semiconductor Corp
C1995 National Semiconductor Corporation
TL H 8358
RRD-B30M125 Printed in U S A
TL081 Wide Bandwidth JFET Input Operational AmplifierDecember 1995
Absolute Maximum Ratings
Input Voltage Range (Note 2)
Supply Voltage
Power Dissipation (Notes 1 and 6)
Operating Temperature Range
Tj(MAX)
Differential Input Voltage
Continuous
Storage Temperature Range
g 18V
g 15V
Output Short Circuit Duration
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
b 65 C to a 150 C
Lead Temp (Soldering 10 seconds)
ijA
670 mW
0 C to a 70 C
115 C
g 30V
260 C
120 C W
ESD rating to be determined
DC Electrical Characteristics (Note 3)
Symbol
Parameter
TL081C
Conditions
Min
Units
Typ
Max
5
15
20
VOS
Input Offset Voltage
RS e 10 kX TA e 25 C
Over TemperatureDVOS DT
Average TC of Input Offset
Voltage
RS e 10 kX
IOS
Input Offset Current
Tj e 25 C (Notes 3 4)
Tj s 70 C
25
100
4
pA
nA
IB
Input Bias Current
Tj e 25 C (Notes 3 4)
Tj s 70 C
50
200
8
pA
nA
RIN
Input Resistance
Tj e 25 C
Large Signal Voltage Gain
VS e g 15V TA e 25 C
VO e g 10V RL e 2 kX
25
Over Temperature
15
AVOLVO
Output Voltage Swing
VCM
Input Common-Mode Voltage
Range
CMRR
VS e g 15V RL e 10 kX
10
mV
mV
mV C
1012
X
100
V mV
V mV
g 12
g 13 5
V
VS e g 15V
g 11
a 15
b 12
V
V
Common-Mode Rejection Ratio
RS s 10 kX
70
100
dB
PSRR
Supply Voltage Rejection Ratio
(Note 5)
70
100
IS
Supply Current
18
dB
28mA
AC Electrical Characteristics (Note 3)
Symbol
Parameter
TL081C
Conditions
Min
Typ
Units
Max
SR
Slew Rate
VS e g 15V TA e 25 C
13
V ms
GBW
Gain Bandwidth Product
VS e g 15V TA e 25 C
4
MHz
en
Equivalent Input Noise Voltage
TA e 25 C RS e 100X
f e 1000 Hz
25
nV 0Hz
in
Equivalent Input Noise Current
Tj e 25 C f e 1000 Hz...
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