ST TL071 User Manual
Low noise JFET single operational amplifier
1
2
3
4
8
6
5
7
Features
■ Wide common-mode (up to V
differential voltage range
■ Low input bias and offset currenT
■ Low noise e
■ Output short-circuit protection
■ High input impedance JFET input stage
■ Low harmonic distortion: 0.01 % (typ)
■ Internal frequency compensation
■ Latch-up free operation
■ High slew rate: 16 V /µs (typ)
= 15 nV/ √Hz (typ)
n
Description
CC
+
) and
TL071
N
DIP8
(Plastic package)
D
SO-8
(Plastic micropackage)
The TL071 is a high-speed JFET input single
operational amplifier. This JFET input operational
amplifier incorporates well matched, high-voltage
JFET and bipolar transistors in a monolithic
integrated circuit.
The device features high slew rates, low input
bias and offset currents, and low offset voltage
temperature coefficient.
Pin connections
(Top view)
1 - Offset null 1
2 - Inverting input
3 - Non-inverting input
4 - V
CC
-
5 - Offset null 2
6 - Output
CC
+
7 - V
8 - N.C.
September 2008 Rev 3 1/15
www.st.com
15
Schematic diagram TL071
N1
N2
TL071
100k
Ω
V
CC
1 Schematic diagram
Figure 1. Circuit schematics
V
CC
Non-inverting
input
Inverting
input
30k
100
100
Ω
200
Ω
Ω
Output
1.3k
V
CC
Offset Null1 Offset Null2
35k
1.3k
Figure 2. Input offset voltage null circuit
35k
100
8.2k
Ω
2/15
TL071 Absolute maximum ratings and operating conditions
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Val ue
Symbol Parameter
Unit
TL071M, AM, BM TL071I, AI, BI TL071C, AC, BC
(4) (5)
(2)
(1)
(8)
(3)
(7)
(9)
(6)
CC
+
and V
CC
±18 V
±15 V
±30 V
125
°C/W
85
40
°C/W
41
Infinite
500 V
200 V
1500 V
-
.
V
V
Supply voltage
CC
V
Input voltage
i
Differential input voltage
id
Thermal resistance junction to
thja
ambient
SO-8
R
DIP8
Thermal resistance junction to
(4) (5)
thjc
case
SO-8
R
DIP8
Output short-circuit duration
T
oper
T
Operating free-air temperature range -55 to +125 -40 to +105 0 to +70 °C
Storage temperature range -65 to +150 °C
stg
HBM: human body model
ESD
MM: machine model
CDM: charged device model
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
2. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less.
3. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
4. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-circuits on all
amplifiers.
5. Rth are typical values.
6. 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.
7. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for all couples of pin
combinations with other pins floating.
8. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins of the device
with no external series resistor (internal resistor < 5 Ω), done for all couples of pin combinations with other pins floating.
9. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to
the ground.
Table 2. Operating conditions
Symbol Parameter TL071I, AI, BI TL071C, AC, BC Unit
V
T
CC
oper
Supply voltage 6 to 36 V
Operating free-air temperature range -40 to +105 0 to +70 °C
3/15
Electrical characteristics TL071
3 Electrical characteristics
Table 3. VCC = ±15V, T
= +25°C (unless otherwise specified)
amb
Symbol Parameter
Input offset voltage (Rs = 50Ω)
T
= +25°C TL071
amb
V
DV
io
io
≤ T
T
min
amb
≤ T
max
Input offset voltage drift 10 10 μV/°C
Input offset current
I
io
I
ib
= +25°C
T
amb
T
≤ T
amb
≤ T
min
Input bias current
T
= +25°C
amb
T
≤ T
amb
≤ T
min
max
(1)
max
Large signal voltage gain (RL= 2kΩ, Vo= ±10V)
A
vd
T
T
amb
min
= +25°C
≤ T
amb
≤ T
max
Supply voltage rejection ratio (R
SVR
T
T
amb
min
= +25°C
≤ T
amb
≤ T
max
Supply current, no load
I
CC
V
icm
= +25°C
T
amb
≤ T
T
min
amb
≤ T
max
Input common mode voltage range
Common mode rejection ratio (RS = 50Ω)
CMR
T
T
amb
min
= +25°C
≤ T
amb
≤ T
max
Output short-circuit current
I
os
T
T
amb
min
= +25°C
≤ T
amb
≤ T
max
Output voltage swing
= +25°C RL = 2kΩ
T
±V
opp
SR
amb
T
≤ T
min
amb
≤ T
RL = 2kΩ
max
Slew rate
= 10V, RL = 2kΩ, CL = 100pF, unity gain
V
in
TL071A
TL071B
TL071
TL071A
TL071B
S
RL = 10kΩ
= 10kΩ
R
L
= 50Ω)
TL071I,M,AC,AI,AM,
BC,BI,BM
TL071C
Min. Typ. Max. Min. Typ. Max.
3
10
3
1
6
3
13
310
13
7
5
5 100
5 10010pA
4
20 200
20 20020pA
20
5025200 2515200
80
80
±11 +15
80
80
10
10
10
12
10
12
86 70
1.4 2.5
2.5
-12
86 70
40 60
60
12
13.5
86
70
1.4 2.5
±11 +15
-12
86
70
10
40 60
10
10
12
12
13.5
10
12
2.5
60
816 816 V/μs
Unit
mV
nA
nA
V/mV
dB
mA
V
dB
mA
V
4/15
TL071 Electrical characteristics
Table 3. VCC = ±15V, T
Symbol Parameter
= +25°C (unless otherwise specified) (continued)
amb
TL071I,M,AC,AI,AM,
BC,BI,BM
TL071C
Min. Typ. Max. Min. Typ. Max.
t
K
GBP
R
Rise time
r
Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain
Overshoot
ov
Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain
Gain bandwidth product
V
= 10mV, RL = 2kΩ, CL = 100pF, f= 100kHz
in
Input resistance 10
i
0.1 0.1 μs
10 10 %
2.5 4 2.5 4 MHz
12
10
12
Total harmonic distortion,
THD
e
n
f= 1kHz, R
= 2Vpp)
V
o
Equivalent input noise voltage
= 100Ω, f = 1KHz
R
S
= 2kΩ,CL = 100pF, Av = 20dB,
L
∅m Phase margin 45 45
1. The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction
temperature.
0.01 0.01 %
15 15
degrees
Unit
W
nV
-----------Hz
5/15
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