TL084
TL084A - TL084B
GENERAL PURPOSE J-FET
QUAD OPERATIONAL AMPLIFIERS
■ WIDE COMMON-MODE (UP TO VCC+) AND
DIFFERENTIAL VOLTAGE RANGE
■ LOW INPUT BIAS AND OFFSET CURRENT
■ OUTPUT SHORT-CIRCUIT PROTECTION
N
DIP14
(Plastic Package)
■ HIGH INPUT IMPEDANCE J–FET INPUT
STAGE
■ INTERNAL FREQUENCY COMPENSATION
■ LATCH UP FREE OPERATION
■ HIGH SLEW RATE : 16V/µs (typ)
D
SO14
(Plastic Micropackage)
p
TSSOP14
(Thin Shrink Small Outline Package)
ORDER CODE
DESCRIPTION
Part Number
The TL084, TL084A and TL084B are high speed
J–FET input quad 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.
Temperature
Range
TL084M/AM/BM
-55°C, +125°C
TL084I/AI/BI
-40°C, +105°C
TL084C/AC/BC
0°C, +70°C
Example : TL084CN, TL084CD
Package
N
D
P
•
•
•
•
•
•
•
•
•
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available
in Tape & Reel (PT)
PIN CONNECTIONS (top view)
Output 1 1
14 Output 4
Inverting Input 1 2
-
-
13 Inverting Input 4
Non-inverting Input 1 3
+
+
12 Non-inverting Input 4
11 VCC -
VCC + 4
Non-inverting Input 2 5
+
+
10 Non-inverting Input 3
Inverting Input 2 6
-
-
9
Inverting Input 3
8
Output 3
Output 2 7
March 2001
1/12
TL084 - TL084A - TL084B
SCHEMATIC DIAGRAM (each amplifier)
VCC
Non-inverting
input
Inverting
input
1 0 0Ω
2 0 0Ω
Output
1 0 0Ω
30k
8.2k
1.3k
1.3k
35k
35k
1 0 0Ω
VCC
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Vi
Parameter
TL084M, 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.
2/12
TL084I, AI, BI
TL084C, 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
TL084 - TL084A - TL084B
ELECTRICAL CHARACTERISTICS
VCC = ±15V, Tamb = +25°C (unless otherwise specified)
Symbol
TL084I,M,AC,AI,AM,
BC,BI,BM
Parameter
Min.
Input Offset Voltage (Rs = 50Ω)
Tamb = +25°C
Vio
DVio
Input Offset Voltage Drift
Input Offset Current - note
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
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
TL084
TL084A
TL084B
TL084
TL084A
TL084B
Tmin ≤ Tamb ≤ Tmax
Iio
Typ.
TL084C
13
10
5
100
4
5
100
4
pA
nA
20
200
20
20
400
20
pA
nA
Avd
Large Signal Voltage Gain (RL = 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 ≤ Tamb ≤ Tmax
80
80
86
70
70
86
ICC
Supply Current, no load, per amplifier
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
Vicm
Input Common Mode Voltage Range
CMR
Ios
±Vopp
SR
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
Tmin ≤ Tamb ≤ Tmax
80
80
86
70
70
86
Output Short-circuit Current
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
10
10
40
10
10
40
RL = 2kΩ
RL = 10kΩ
RL = 2kΩ
RL = 10kΩ
10
12
10
12
12
13.5
10
12
10
12
12
13.5
Slew Rate (Tamb = +25°C)
Vin = 10V, RL = 2kΩ, CL = 100pF, unity gain
8
16
8
16
Output Voltage Swing
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
V
mA
60
60
60
60
V
V/µs
µs
Rise Time (Tamb = +25°C)
Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain
0.1
0.1
Kov
Overshoot (Tamb = +25°C)
Vin = 20mV, RL = 2kΩ, CL = 100pF, unity gain
10
10
GBP
Gain Bandwidth Product (Tamb = +25°C)
Vin = 10mV, RL = 2kΩ, CL = 100pF, f= 100kHz
Input Resistance
2.5
2.5
dB
tr
Ri
µV/°C
10
1)
%
MHz
2.5
4
1012
2.5
4
1012
Ω
3/12
TL084 - TL084A - TL084B
Symbol
Parameter
TL084I,M,AC,AI,AM,
BC,BI,BM
Min.
THD
en
∅m
Total Harmonic Distortion (Tamb = +25°C),
f= 1kHz, RL = 2kΩ,CL = 100pF, Av = 20dB,
Vo = 2Vpp
Equivalent Input Noise Voltage
RS = 100Ω, f = 1KHz
Phase Margin
Channel Separation
Vo1/Vo2
Av = 100
1.
4/12
Typ.
Max.
TL084C
Unit
Min.
Typ.
Max.
%
0.01
0.01
15
15
nV
-----------Hz
45
45
degrees
120
120
dB
The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature.
TL084 - TL084A - TL084B
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-PEAK OUTPUT
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
5/12
TL084 - TL084A - TL084B
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION versus FREE AIR TEMP.
INPUT BIAS CURRENT versus FREE AIR
TEMPERATURE
100
1000
15V
10
1
0.1
0.01
-50
400
200
100
DIFFERENTIAL VOLTAGE
AMPLIFICATION (V/V)
INPUT BIAS CURRENT (nA)
V CC =
40
20
10
4
2
1
-25
0
25
50
75
100
V CC = 15V
V O = 10V
125
R L = 2k Ω
-75
-50
-25
DIFFERENTIAL
VOLTAGE
AMPLIFICATION
(left scale)
PHASE SHIFT
(right scale)
180
10
90
R = 2kW
L
C L = 100pF
V CC = 15V
T amb = +125°C
1
100
1K
10K
0
100K
25
50
75
100
125
1M
10M
FREQUENCY (Hz)
TOTAL POWER DISSIPATION versus FREE AIR
TEMPERATURE
TOTAL POWER DISSIPATION (mW)
DIFFERENTIAL VOLTAGE
AMPLIFICATION (V/V)
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT versus
FREQUENCY
100
0
TEMPERATURE (˚C)
TEMPERATURE (˚C)
250
225
200
175
150
125
100
75
50
25
0
V CC = 15V
No signal
No load
-75
-50
-25
0
25
50
75
100
125
TEMPERATURE (˚C)
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
-75
-50
-25
0
25
50
TEMPERATURE (˚C)
6/12
75
100
SUPPLY CURRENT PER AMPLIFIER versus
SUPPLY VOLTAGE
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
SUPPLY CURRENT PER AMPLIFIER versus
FREE AIR TEMPERATURE
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
TL084 - TL084A - TL084B
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
VC C = 15V
88
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 kW
-2
C L= 100pF
Tamb = +25°C
-4
-6
0
0.5
1
1.5
2
3
3.5
TIME (m s)
TEMPERATURE (˚C)
OUTPUT VOLTAGE versus ELAPSED TIME
EQUIVALENT INPUT NOISE VOLTAGE versus
FREQUENCY
28
70
24
EQUIVALENT INPUT NOISE
VOLTAGE (nV/VHz)
20
90%
16
12
8
V
4
tr
-4
0
0.1
CC
= 15V
R L = 2k Ω
Tamb = +25˚C
10%
0
VCC = 15V
A V = 10
R S = 100 Ω
T amb = +25˚C
60
OVERSHOOT
0.2
0.3
0.4
0.5
0.6
50
40
30
20
10
0
10
0.7
40
100
400 1k
4k
10k
40k 100k
FREQUENCY (Hz)
TIME ( µs)
TOTAL HARMONIC DISTORTION versus FREQUENCY
1
TOTAL HARMONIC DISTORTION
(%)
OUTPUT VOLTAGE (mV)
2.5
V VCC = = 15V
15V
CC
A AV V= =1 1
V VO O(rms)
= =6V6V
(rms)
0.4
0.1
0.04
T amb
T amb= =+25˚C
+25˚C
0.01
0.004
0.001
100
400
1k
4k
10k
40k
100k
FREQUENCY (Hz)
7/12
TL084 - TL084A - TL084B
PARAMETER MEASUREMENT INFORMATION
Figure 1 : Voltage Follower
Figure 2 : Gain-of-10 Inverting Amplifier
10k Ω
1k Ω
-
eI
1/4
TL084
eo
RL
CL = 100pF
TYPICAL APPLICATIONS
AUDIO DISTRIBUTION AMPLIFIER
fO = 100kHz
1M Ω
1/4
TL084
Output A
1/4
TL084
Output B
1/4
TL084
Output C
1µF
1/4
TL084
-
Input
100k Ω
1OO µF
8/12
100k Ω
100k Ω
100k Ω
V CC+
-
TL084 - TL084A - TL084B
TYPICAL APPLICATIONS (continued)
POSITIVE FEEDBACK BANDPASS FILTER
16k Ω
16k Ω
22 0p F
220 pF
43k Ω
Input
43k Ω
43k Ω
22 0p F
1/4
TL 08 4
22 0p F
43k Ω
30k Ω
43k Ω
30k Ω
-
1/4
TL 08 4
1/4
TL 08 4
43k Ω
1/4
TL 08 4
1.5 k Ω
1.5 k Ω
Output B
Ground
Output A
OUTPUT A
SECOND ORDER BANDPASS FILTER
fo = 100kHz; Q = 30; Gain = 4
OUTPUT B
CASCADED BANDPASS FILTER
fo = 100kHz; Q = 69; Gain = 16
9/12
TL084 - TL084A - TL084B
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC DIP
Millimeters
Inches
Dim.
Min.
a1
B
b
b1
D
E
e
e3
F
i
L
Z
10/12
Typ.
0.51
1.39
Max.
Min.
1.65
0.020
0.055
0.5
0.25
Typ.
0.065
0.020
0.010
20
0.787
8.5
2.54
15.24
0.335
0.100
0.600
7.1
5.1
0.280
0.201
3.3
1.27
Max.
0.130
2.54
0.050
0.100
TL084 - TL084A - TL084B
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC MICROPACKAGE (SO)
G
c1
b1
e
a1
b
A
a2
C
L
s
e3
E
D
M
8
1
7
F
14
Millimeters
Inches
Dim.
Min.
A
a1
a2
b
b1
C
c1
D (1)
E
e
e3
F (1)
G
L
M
S
Typ.
Max.
Min.
1.75
0.2
1.6
0.46
0.25
0.1
0.35
0.19
Typ.
0.004
0.014
0.007
0.5
Max.
0.069
0.008
0.063
0.018
0.010
0.020
45° (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
1.27
7.62
3.8
4.6
0.5
0.344
0.244
0.050
0.300
4.0
5.3
1.27
0.68
0.150
0.181
0.020
0.157
0.208
0.050
0.027
8° (max.)
Note : (1) D and F do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (.066 inc) ONLY FOR DATA BOOK.
11/12
TL084 - TL084A - TL084B
PACKAGE MECHANICAL DATA
14 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
k
c
C
SEATING
PLANE
E1
L1
L
0,25 mm
.010 inch
GAGE PLANE
E
A
A2
7
aaa
C
D
8
e
b
A1
14
1
PIN 1 IDENTIFICATION
Millimeters
Inches
Dim.
Min.
A
A1
A2
b
c
D
E
E1
e
k
l
0.05
0.80
0.19
0.09
4.90
4.30
0°
0.50
Typ.
1.00
5.00
6.40
4.40
0.65
0.60
Max.
Min.
1.20
0.15
1.05
0.30
0.20
5.10
0.01
0.031
0.007
0.003
0.192
4.50
0.169
8°
0.75
0°
0.09
Typ.
0.039
0.196
0.252
0.173
0.025
0.0236
Max.
0.05
0.006
0.041
0.15
0.012
0.20
0.177
8°
0.030
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
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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