LRC LR072E Low noise j-fet dual operational amplifier Datasheet

LESHAN RADIO COMPANY, LTD.
LOW NOISE J-FET DUAL
OPERATIONAL AMPLIFIERS
LR 072
DESCRIPTION
The LR072 is a high speed J-FET input dual
operational amplifiers incorporating well matched,
high voltage J-FET and bipolar transistors in a
monolithic integrated circuit.
DIP-8
The device features high slew rates, low input
bias and offset currents , and low offset voltage
temperature coefficient.
SOP-8
FEATURES
* Wide common-mode and differential voltage range
* Low input bias and offset current
ORDERING INFORMATION
* Low noise en=15nv/√Hz(typ)
* Output short-circuit protection
Device
* High input impedance J-FET input stage
LR072D
DIP-8-300-2.54
* Low harmonic distortion:0.01%(typ)
LR072E
SOP-8-225-1.27
* Internal frequency compensation
Package
* Latch up free operation
* High slew rate:16V/μs(typ)
BLOCK DIAGRAM
Vcc+
8
Output 2
7
6
Inverting
Input 2
-
Output 1
1
Ver1.1
Inverting
Input 1
2
5
Non-Inverting
Input 2
+
+
Non-Inverting
Input 1
3
Vcc-
4
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LESHAN RADIO COMPANY, LTD.
ABSOLUTE MAXIMUM RATINGS (Ta=25C)
Characteristic
Symbol
Value
Unit
Vcc
±18
V
Input Voltage-note2
Vi
±15
V
Differential Input Voltage –note3
Vi(diff)
±30
V
Power Dissipation
Pd
680
mW
Supply Voltage-note1
Output Short-Circuit Duration- note4
Infinite
Operating Free-air Temperature
Topr
0 to +70
C
Storage Temperature Range
Tstg
-65 to 150
C
1. All voltage values,except differential voltage ,are with respect to zero reference level (ground) of the supply
voltages where the zero reference level is the midpoint between Vcc+ and Vcc-.
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 interminal.
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.
ELECTRICAL CHARACTERISTICS
(Vcc=±15V,Ta=+25C,unless otherwise specified)
Characteristic
Symbol
Input Offset Voltage(Rs=50Ω)
VIO
Input Offset Voltage drift
DVIO
Input Offset Current (Note 1）
IIO
Test Condition
Min Typ. Max Unit
Ta=+25C
3
Tmin≤Ta≤Tmax
IBIAS
Ta=+25C
5
Ta=+25C
20
Tmin≤Ta≤Tmax
Large Signal Voltage Gain
GV
(RL=2KΩ,V0=±10V)
Supply Voltage Rejection Ratio
SVR
(Rs=50Ω)
Supply Current,no load,
Ta=+25C
Tmin≤Ta≤Tmax
Icc
per amplifier
Input Common-mode Voltage
Ta=+25C
Tmin≤Ta≤Tmax
25
70
100
pA
10
nA
200
pA
20
nA
200
V/mV
86
dB
70
1.4
Tmin<Ta<Tmax
2.5
mV
2.5
±11
Range
Common-mode rejection Ratio
μF/C
15
Ta=+25C
VI(R)
mV
13
10
Tmin≤Ta≤Tmax
Input Bias Current (Note 1)
10
+15
V
-12
CMRR
Ta=+25C
70
Tmin≤Ta≤Tmax
70
86
dB
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LESHAN RADIO COMPANY, LTD.
(continued)
Output Shout-Circuit Current
Output Voltage Swing
Ios
±Vopp
Ta=+25C
10
40
Tmin≤Ta≤Tmax
10
Ta=+25C RL=2KΩ
10
12
12
13.5
RL=10KΩ
60
mA
60
V
Tmin≤Ta≤Tmax
Slew Rate
SR
RL=2KΩ
10
RL=10KΩ
12
Ta=+25C
8
16
V/s
0.1
s
10
%
4
MHZ
1012
Ω
0.01
%
Vin=10V,RL=2KΩ,
CL=100pF, unity again
Rise Time
TR
Ta=+25C
Vin=20mV,RL=2KΩ,
CL=100pF, unity again
Overshoot Factor
KOV
Ta=+25C
Vin=20mV,RL=2KΩ,
CL=100pF, unity again
Gain Bandwidth Product
GBP
Ta=+25C
2.5
Vin=10mV,RL=2KΩ,
CL=100pF, f=100kHZ
Input Resistance
Total Harmonic Distortion
Ri
THD
Ta=+25C
f=1kHZ ,RL=2KΩ,
CL=100pF, Av=20dB,Vo=2Vpp
Equivalent Input Noise Voltage
EN
Rs=100Ω,f=1KHz
15
nv
Hz
Phase Margin
ΦM
Channel Separation
Vo1/Vo2
Av=100
45
degree
120
dB
3/6
LESHAN RADIO COMPANY, LTD.
PARAMETER MEASUREMENT INFORMATION
-
1/2
LR072
+
ei
eo
CL=100pF
RL=2K Ω
Figure 1: Voltage follower
10KΩ
ei
1KΩ
1/2
LR072
eo
+
RL
CL=100pF
Figure 2: Gain-of-10 inverting amplifier
4/6
LESHAN RADIO COMPANY, LTD.
TYPICAL APPLICATIONS
100KHZ QUADRUPLE OSCILLATOR
18 K Ω
-15V
1N 4148
18pF
1/2
LR072
+
88.4K Ω
1KΩ
18pF
88.4K Ω
1/2
LR072
+
18pF
1K Ω
88.4K Ω
1N 4148
18K Ω
+15V
5/6
LESHAN RADIO COMPANY, LTD.
PACKAGE DIMENSIONS
DIP-8-300-2.54
UNIT: mm
E1
D
L
e
A
θ1
E
Symbol
Min
Nom
Max
A
1.52
-
1.82
A1
A2
C1
A3
D
E
A3
E1
0.59
0.89
1.24
0.38
0.46
0.54
0.5
-
-
6.10
6.35
6.6
9.10
9.40
9.80
7.62
-
8.25
C
e
A2
A1
2.54BSC
C
3.0
-
-
C1
-
-
4.36
θ1
L
-
15°
-
0.2
0.25
0.3
SOP-8-225-1.27
UNIT: mm
5.72
3.9±0.1
6.0±0.2
0.42
1.27
1.55±0.20
4.9±0.1
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