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Motorola
Motorola

TL084CN Datasheet

JFET INPUT OPERATIONAL AMPLIFIERS


TL084CN Datasheet Preview


Order this document by TL081C/D
JFET Input Operational
Amplifiers
These low–cost JFET input operational amplifiers combine two state–of–
the–art linear technologies on a single monolithic integrated circuit. Each
internally compensated operational amplifier has well matched high voltage
JFET input devices for low input offset voltage. The BIFET technology
provides wide bandwidths and fast slew rates with low input bias currents,
input offset currents, and supply currents.
These devices are available in single, dual and quad operational
amplifiers which are pin–compatible with the industry standard MC1741,
MC1458, and the MC3403/LM324 bipolar products.
Input Offset Voltage Options of 6.0 mV and 15 mV Max
Low Input Bias Current: 30 pA
Low Input Offset Current: 5.0 pA
Wide Gain Bandwidth: 4.0 MHz
High Slew Rate: 13 V/µs
Low Supply Current: 1.4 mA per Amplifier
High Input Impedance: 1012
Op Amp
Function
Single
Dual
Quad
ORDERING INFORMATION
Device
Operating
Temperature Range
TL081CD
TL081ACP
TA = 0° to +70°C
TL082CD
TL082ACP
TA = 0° to +70°C
TL084CN, ACN
TA = 0° to +70°C
Package
SO–8
Plastic DIP
SO–8
Plastic DIP
Plastic DIP
TL081C,AC
TL082C,AC
TL084C,AC
JFET INPUT
OPERATIONAL AMPLIFIERS
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Offset Null 1
8 NC
Inv + Input 2
Noninvt Input 3
+
7 VCC
6 Output
VEE 4
5 Offset Null
TL081 (Top View)
Output A 1
8 VCC
Inputs A
2
+
3
VEE 4
7 Output B
6
+
5
Inputs B
TL082 (Top View)
Representative Circuit Schematic (Each Amplifier)
Output
Q4 Q5
Q3
Inputs
+
J1
Q14
Q12
Q10
J2
Q17
Q15
10 pF
Q13 Q16
Q11
Q20
Q19 Q23
24
Q21
Q22 Q24
Q2
Q1
Q6
Q9 Q8
VCC
2.0 k
J3
Q25
Q7
Offset
Null
(TL081
only)
1.5 k
Q18
1.5 k
Bias Circuitry VEE
Common to All
Amplifiers
14
1
N SUFFIX
PLASTIC PACKAGE
CASE 646
PIN CONNECTIONS
Output 1 1
Inputs 1
2
3
VCC 4
5
Inputs 2
6
Output 2 7
+
1
+
2
14 Output 4
13
4 + 12
Inputs 4
11 VEE
+ 10
39
Inputs 3
8 Output 3
TL084 (Top View)
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1997
Rev 1
1
Page 1

TL081C,AC TL082C,AC TL084C,AC
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Supply Voltage
Differential Input Voltage
Input Voltage Range (Note 1)
Output Short Circuit Duration (Note 2)
Power Dissipation
Plastic Package (N, P)
Derate above TA = +47°C
Operating Ambient Temperature Range
Storage Temperature Range
VCC
VEE
VID
VIDR
tSC
PD
1/θJA
TA
Tstg
18
–18
±30
±15
Continuous
V
V
V
680
10
0 to +70
–65 to +150
mW
mW/°C
°C
°C
NOTES: 1. The magnitude of the input voltage must not exceed the magnitude of the supply voltage or
15 V, whichever is less.
2. The output may be shorted to ground or either supply. Temperature and/or supply voltages
must be limited to ensure that power dissipation ratings are not exceeded.
3. ESD data available upon request.
ELECTRICAL CHARACTERISTICS (VCC = 15 V, VEE = –15 V, TA = Tlow to Thigh [Note 1].)
Characteristics
Symbol Min Typ Max Unit
Input Offset Voltage (RS 10 k, VCM = 0)
TL081C, TL082C
TL084C
TL08_AC
VIO mV
– – 20
– – 20
– – 7.5
Input Offset Current (VCM = 0) (Note 2)
TL08_C
TL08_AC
IIO nA
– – 5.0
– – 3.0
Input Bias Current (VCM = 0) (Note 2)
TL08_C
TL08_AC
IIB nA
– – 10
– – 7.0
Large–Signal Voltage Gain (VO= ±10 V,RL 2.0 k)
TL08_C
TL08_AC
AVOL
15 –
25 –
V/mV
Output Voltage Swing (Peak–to–Peak)
(RL 10 k)
(RL 2.0 k)
VO V
24 –
20 –
NOTES: 1. Tlow = 0°C for TL081AC,C
0°C for TL082AC,C
Thigh = 70°C for TL081AC
+70°C for TL082AC,C
0°C for TL084AC,C
+70°C for TL084AC,C
2. Input Bias currents of JFET input op amps approximately double for every 10°C rise in Junction Temperature as shown in Figure 3. To maintain
junction temperature as close to ambient temperature as possible, pulse techniques must be used during testing.
Figure 1. Unity Gain Voltage Follower
+
Vin
RL = 2.0 k
VO
CL = 100 pF
Figure 2. Inverting Gain of 10 Amplifier
10 k
1.0 k
Vin
+
RL
VO
CL = 100 pF
2 MOTOROLA ANALOG IC DEVICE DATA
Page 2

TL081C,AC TL082C,AC TL084C,AC
ELECTRICAL CHARACTERISTICS (VCC = 15 V, VEE = –15 V, TA = 25°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Input Offset Voltage (RS 10 k, VCM = 0)
TL081C, TL082C
TL084C
TL08_AC
VIO mV
– 5.0 15
– 5.0 15
– 3.0 6.0
Average Temperature Coefficient of Input Offset Voltage
RS = 50 , TA = Tlow to Thigh (Note 1)
Input Offset Current (VCM = 0) (Note 2)
TL08_C
TL08_AC
VIO/T
IIO
10 – µV/°C
pA
5.0 200
5.0 100
Input Bias Current (VCM = 0) (Note 2)
TL08_C
TL08_AC
Input Resistance
IIB pA
– 30 400
– 30 200
ri
– 1012 –
Common Mode Input Voltage Range
TL08_C
TL08_AC
VICR
±10 15, –12
±11 15, –12
V
Large Signal Voltage Gain (VO = ±10 V, RL 2.0 k)
TL08_C
TL08_AC
AVOL
25 150
50 150
V/mV
Output Voltage Swing (Peak–to–Peak)
(RL = 10 k)
Common Mode Rejection Ratio (RS 10 k)
TL08_C
TL08_AC
VO
CMRR
24 28
70 100
80 100
V
dB
Supply Voltage Rejection Ratio (RS 10 k)
TL08_C
TL08_AC
PSRR
70 100
80 100
dB
Supply Current (Each Amplifier)
Unity Gain Bandwidth
ID – 1.4 2.8 mA
BW – 4.0 – MHz
Slew Rate (See Figure 1)
Vin = 10 V, RL = 2.0 k, CL = 100 pF
Rise Time (See Figure 1)
Overshoot (Vin = 20 mV, RL = 2.0 k, CL = 100 pF)
SR – 13 – V/µs
tr – 0.1 – µs
OS – 10 – %
Equivalent Input Noise Voltage
RS = 100 , f = 1000 Hz
en – 25 – nV/Hz
Channel Separation
AV = 100
CS
– 120 –
dB
NOTES: 1. Tlow = 0°C for TL081AC,C
0°C for TL082AC,C
Thigh = 70°C for TL081AC
+70°C for TL082AC,C
0°C for TL084AC,C
+70°C for TL084AC,C
2. Input Bias currents of JFET input op amps approximately double for every 10°C rise in Junction Temperature as shown in Figure 3. To maintain
junction temperature as close to ambient temperature as possible, pulse techniques must be used during testing.
MOTOROLA ANALOG IC DEVICE DATA
3
Page 3

TL081C,AC TL082C,AC TL084C,AC
Figure 3. Input Bias Current
versus Temperature
100
VCC/VEE = ±15 V
10
1.0
0.1
0.01
–100 –75
–50 –25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125 150
Figure 4. Output Voltage Swing
versus Frequency
35
30
VCC/VEE = ±15 V
RL = 2.0 k
TA = 25°C
(See Figure 2)
25
20 ±10 V
15
10 ±5.0 V
5.0
0
100 1.0 k 10 k 100 k 1.0 M 10 M
f, FREQUENCY (Hz)
Figure 5. Output Voltage Swing
versus Load Resistance
40
VCC/VEE = ±15 V
30 TA = 25°C
(See Figure 2)
20
10
5.0
0
0.1 0.2
0.4 0.7 1.0 2.0
4.0
RL, LOAD RESISTANCE (k)
7.0 10
Figure 6. Output Voltage Swing
versus Supply Voltage
40
RL = 2.0 k
TA = 25°C
30
20
10
0
0 5.0 10 15
VCC, |VEE| , SUPPLY VOLTAGE (±V)
20
Figure 7. Output Voltage Swing
versus Temperature
40
35 VCC/VEE = ±15 V
(See Figure 2)
30
RL = 10 k
25
RL = 2.0 k
20
15
10
5.0
0
–75 –50
–25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
100
125
Figure 8. Supply Current per Amplifier
versus Temperature
2.0
1.8 VCC/VEE = ±15 V
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–75 –50 –25
0
25 50 75
TA, AMBIENT TEMPERATURE (°C)
100
125
4 MOTOROLA ANALOG IC DEVICE DATA
Page 4
Part Number TL084CN
Manufactur Motorola
Description JFET INPUT OPERATIONAL AMPLIFIERS
Total Page 8 Pages
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