LF247DT [STMICROELECTRONICS]
WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS; 宽带宽QUAD J-FET运算放大器
| 型号： | LF247DT |
| 厂家： | 
ST |
| 描述： | WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS |
| 文件： | 总10页 (文件大小：296K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LF147 - LF247
LF347
WIDE BANDWIDTH
QUAD J-FET OPERATIONAL AMPLIFIERS
■ LOW POWER CONSUMPTION
■ WIDE COMMON-MODE (UP TO V
+
) AND
CC
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)
ORDER CODE
DESCRIPTION
Package
Part Number
LF147
Temperature Range
These circuits are high speed J–FET input quad
operational amplifiers incorporating well matched,
high voltage J–FET and bipolar transistors in a
monolithic integrated circuit.
N
D
-55°C, +125°C
-40°C, +105°C
0°C, +70°C
•
•
•
•
•
•
LF247
LF347
Example : LF347IN
The devices feature high slew rates, low input bias
and offset currents, and low offset voltage tem-
perature coefficient.
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
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 V
CC
+
V
CC
4
5
6
7
Non-inverting Input 2
Inverting Input 2
Output 2
10 Non-inverting Input 3
+
-
+
-
9
8
Inverting Input 3
Output 3
March 2001
1/10
LF147 - LF247 - LF347
SCHEMATIC DIAGRAM (each amplifier)
V
CC
Non-inverting input
Inverting input
W
W
100
100
W
200
Output
30k
8.2k
W
100
1.3k
1.3k
35k
35k
V
CC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
LF147
LF247
LF347
Unit
1)
V
±18
±15
V
V
Supply voltage - note
CC
2)
V
Input Voltage - note
i
3)
V
±30
V
Differential Input Voltage - note
Power Dissipation
id
P
680
mW
tot
4)
Infinite
-40 to +105
-65 to +150
Output Short-circuit Duration - note
T
Operating Free-air Temperature Range
Storage Temperature Range
-55 to +125
0 to +70
°C
°C
oper
T
stg
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 VCC+ and VCC
.
2.
3.
4.
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
2/10
LF147 - LF247 - LF347
ELECTRICAL CHARACTERISTICS
CC = ±15V, Tamb = +25°C (unless otherwise specified)
V
Symbol
Parameter
Min.
Typ.
Max.
Unit
Input Offset Voltage (R = 10kΩ)
s
mV
V
T
= 25°C
3
10
5
10
13
io
amb
T
≤ T
≤ T
min
amb max
DV
Input Offset Voltage Drift
µV/°C
io
1)
Input Offset Current - note
I
T
= 25°C
100
4
pA
nA
io
ib
amb
T
≤ T
≤ T
amb max
min
Input Bias Current - note 1
= 25°C
T
I
20
200
86
200
20
pA
nA
amb
T
≤ T
≤ T
amb max
min
Large Signal Voltage Gain (R = 2kΩ, V = ±10V) ,
L
o
V/mV
A
T
= 25°C
50
25
vd
amb
T
≤ T
≤ T
amb max
min
Supply Voltage Rejection Ratio (R = 10kΩ)
S
dB
T
= 25°C
SVR
80
80
amb
T
≤ T
≤ T
amb max
min
Supply Current, Per Amp, no Load
= 25°C
mA
T
I
1.4
2.7
2.7
amb
CC
T
≤ T
≤ T
amb max
min
±11
+15
-12
V
V
Input Common Mode Voltage Range
Common Mode Rejection Ratio (R = 10kΩ)
icm
S
dB
T
T
= 25°C
CMR
70
70
86
40
amb
≤ T
≤ T
amb max
min
Output Short-Circuit Current
= 25°C
mA
V
T
I
10
10
60
60
amb
OS
T
≤ T
≤ T
amb
min
max
Output Voltage Swing
= 25°C
T
R = 2kΩ
amb
L
10
12
10
12
12
13.5
R = 10kΩ
±V
L
opp
T
≤ T
≤ T
R = 2kΩ
L
min
amb
max
R = 10kΩ
L
Slew Rate
V/µs
µs
SR
V = 10V, R = 2kΩ, C = 100pF, T
= 25°C, unity gain
= 25°C, unity gain
12
16
0.1
10
4
i
L
L
amb
Rise Time
t
r
V = 20mV, R = 2kΩ,C = 100pF, T
i
L
L
amb
Overshoot
%
K
ov
V = 20mV, R = 2kΩ, C = 100pF, T = 25°C, unity gain
i
L
L
amb
Gain Bandwidth Product
MHz
GBP
f =100kHz, T
= 25°C, V = 10mV, R =2kΩ, C = 100pF
2.5
amb
in L L
12
R
Input Resistance
Ω
10
i
Total Harmonic Distortion
%
f =1kHz, A = 20dB, R = 2kΩ, C = 100pF
THD
v
L
L
T
= 25°C, V = 2Vpp
0.01
15
amb
O
nV
-----------
e
Equivalent Input Noise Voltage (R = 100Ω, f = 1KHz)
n
S
Hz
Degrees
dB
m
Phase Margin
45
V
/V Channel Separation ( A = 100)
v
120
o1 o2
1.
The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature.
3/10
LF147 - LF247 - LF347
MAXIMUM PEAK-TO-PEAK OUTPUT
VOLTAGE versus FREQUENCY
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
30
= 10 k
Ω
RL
25
Tamb = +25˚C
20
15
10
5
0
2
4
6
8
10
14
16
12
SUPPLY VOLTAGE ( V)
4/10
LF147 - LF247 - LF347
INPUT BIAS CURRENT versus FREE AIR
TEMPERATURE
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT versus
FREQUENCY
100
1000
400
VCC
15V
=
10
1
200
100
40
20
VCC
=
15V
10V
L = 2k
10
VO
=
0.1
4
2
Ω
R
1
0.01
-75 -50
-25
0
25
50
75
125
100
-50
-25
0
25
50
75
100
125
TEMPERATURE (˚C)
TEMPERATURE (˚C)
LARGE SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT versus
FREQUENCY
TOTAL POWER DISSIPATION versus FREE AIR
TEMPERATURE
250
VCC
225
200
175
150
125
100
75
15V
=
100
180
DIFFERENTIAL
VOLTAGE
AMPLIFICATION
(left scale)
No signal
No load
PHASE SHIFT
(right scale)
10
1
90
0
R = 2k
W
L
C = 100pF
L
V = 15V
CC
50
amb
T = +125°C
25
0
1K
10K
100K
1M
10M
100
-75 -50
-25
0
50
75
100 125
25
FREQUENCY (Hz)
TEMPERATURE (˚C)
SUPPLY CURRENT PER AMPLIFIER versus
FREE AIR TEMPERATURE
COMMON MODE REJECTION RATIO versus
FREE AIR TEMPERATURE
2.0
2.0
T
+25°C
=
1.8
VCC
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
15V
=
amb
1.6 No signal
No signal
No load
No load
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-75 -50
-25
0
50
75
100 125
0
2
4
6
10 12 14 16
8
25
TEMPERATURE (˚C)
SUPPLY VOLTAGE (V)
5/10
LF147 - LF247 - LF347
COMMON MODE REJECTION RATIO versus
FREE AIR TEMPERATURE
VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE
89
6
RL
VC
= 10 k
Ω
88
4
OUTPUT
CC= 15V
=
15V
C
INPUT
87
86
2
0
V
85
-2
= 2 k
W
RL
C
L= 100pF
84
83
-4
-6
T
amb = +25°C
-75 -50
-25
0
25
50
75 100
125
0
0.5
1
1.5
2
2.5
3
3.5
TEMPERATURE (˚C)
TIME ( s)
m
OUTPUT VOLTAGE versus ELAPSED TIME
EQUIVALENT INPUT NOISE VOLTAGE versus
FREQUENCY
28
70
24
=
15V
VCC
A V
R S
OVERSHOOT
60
= 10
= 100
= +25˚C
20
90%
50
40
30
Ω
16
12
8
Tamb
VCC
=
15V
20
4
0
R L
= 2k
Ω
10%
10
0
Tamb
= +25˚C
t r
0.1
-4
10
40
100
400 1k
4k 10k
40k 100k
0.3
TIME (
0.5
0.6
0
0.2
0.4
s)
0.7
FREQUENCY (Hz)
µ
TOTAL HARMONIC DISTORTION versus FREQUENCY
1
V
=
15V
CC
0.4
= 1
A V
V
O
= 6V
(rms)
0.1
T
= +25˚C
amb
0.04
0.01
0.004
0.001
100
400
1k
4k
10k
40k
100k
FREQUENCY (Hz)
6/10
LF147 - LF247 - LF347
PARAMETER MEASUREMENT INFORMATION
Figure 1 : Voltage Follower
Figure 2 : Gain-of-10 Inverting Amplifier
W
10k
1/4
W
1k
-
eI
e
LF347
o
R
CL= 100pF
L
TYPICAL APPLICATIONS
AUDIO DISTRIBUTOR AMPLIFIER
fO = 100kHz
-
1/4
Output A
Output B
Output C
LF347
W
1M
-
-
-
1/4
LF347
m
1 F
1/4
LF347
Input
W
W
100k
100k
W
100k
+
VCC
m
100 F
W
100k
1/4
LF347
7/10
LF147 - LF247 - LF347
TYPICAL APPLICATIONS (continued)
POSITIVE FEEDBACK BANDPASS FILTER
W
W
16k
W
16k
220pF
220pF
W
W
43k
43k
W
43k
W
30k
W
43k
W
30k
-
-
Input
4/1
4/1
43k
220pF
-
220pF
-
LF347
LF347
W
43k
4/1
4/1
LF347
LF347
Output B
Ground
W
1.5k
W
1.5k
Output A
OUTPUT A
OUTPUT B
SECOND ORDER BANDPASS FILTER
CASCADED BANDPASS FILTER
fo = 100kHz; Q = 69; Gain = 16
fo = 100kHz; Q = 30; Gain = 16
8/10
LF147 - LF247 - LF347
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC DIP
Millimeters
Inches
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
a1
B
b
0.51
1.39
0.020
0.055
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
15.24
0.335
0.100
0.600
e3
F
7.1
5.1
0.280
0.201
i
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
9/10
LF147 - LF247 - LF347
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC MICROPACKAGE (SO)
L
G
c1
b
e
s
e3
D
E
M
14
1
8
7
Millimeters
Inches
Typ.
Dim.
Min.
Typ.
Max.
Min.
Max.
A
a1
a2
b
1.75
0.2
0.069
0.008
0.063
0.018
0.010
0.1
0.004
1.6
0.35
0.19
0.46
0.25
0.014
0.007
b1
C
0.5
0.020
c1
D (1)
E
45° (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
e
1.27
7.62
0.050
0.300
e3
F (1)
G
3.8
4.6
0.5
4.0
5.3
0.150
0.181
0.020
0.157
0.208
0.050
0.027
L
1.27
0.68
M
S
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.
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.
© The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
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10/10
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