LM248 [STMICROELECTRONICS]
FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS; 四UA741四路双极运算放大器
| 型号： | LM248 |
| 厂家： | 
ST |
| 描述： | FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS |
| 文件： | 总9页 (文件大小：141K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM148
LM248 - LM348
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
.
.
LOWSUPPLYCURRENT : 0.53mA/AMPLIFIER
CLASS AB OUTPUT STAGE : NO CROSS-
OVER DISTORTION
PIN COMPATIBLE WITH LM124
LOW INPUT OFFSET VOLTAGE : 1mV
LOW INPUT OFFSET CURRENT : 2nA
LOW INPUT BIAS CURRENT : 30nA
GAIN BANDWIDTH PRODUCT : 1.3MHz
HIGH DEGREE OF ISOLATION BETWEEN
AMPLIFIERS : 120dB
.
.
.
.
.
.
N
D
DIP14
SO14
.
OVERLOADPROTECTION FOR INPUTS AND
OUTPUTS
(Plastic Package)
(Plastic Micropackage)
ORDER CODES
Package
Part Num-
ber
Temperature
Range
N
D
•
LM148
–55oC, +125oC
–40oC, +105oC
0oC, +70oC
•
•
•
LM248
•
LM348
•
Example : LM348D
PIN CONNECTIONS (top view)
DESCRIPTION
The LM148 consists of four independent,high gain
internally compensated, low power operational
amplifiers which have been designed to provide
functionalcharacteristics identicalto thoseof the fa-
miliar UA741 operational amplifier. In addition the
total supply current for all four amplifiers is compa-
rable to the supply current of a single UA741 type
op amp. Other featuresinclude input offset current
and input bias current which are much less than
those of a standardUA741. Also, excellentisolation
between amplifiers has been achieved by inde-
pendently biasing each amplifier and using layout
techniqueswhich minimize thermal coupling.
Ou tpu t
4
1
1 4
1 3
1 2
1 1
Ou tpu t
In ve rting inpu t
1
1
Inv er ti ng i npu t
4
2
3
4
5
6
7
N on -in v er ting i np ut
4
3
Non -in ver ting i npu t
1
-
+
V
V
C C
C C
N on- inv er ting in pu t
2
1 0 N on -in v er ting i np ut
9
8
Inv e r ti ng i nput
Out put
2
2
I n ve r ti ng in pu t 3
Output
3
The LM148 can be used anywhere multiple UA741
type amplifiers are being used and in applications
where amplifier matching or high packing densityis
required.
1/9
November 1997
LM148 - LM248 - LM348
SCHEMATIC DIAGRAM
V
CC
25 Ω
Inverting
Input
Non-inverting input
12k Ω
Output
350k Ω
7.4pF
25 Ω
2.5k Ω
V
CC
V
CC
60k Ω
340 Ω
Ω
60k
36k Ω
V
CC
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Vid
Parameter
LM148
LM248
± 22
LM348
± 22
± 44
± 22
500
Unit
V
Supply Voltage
± 22
±44
Differential Input Voltage
Input Voltage (note 1)
Power Dissipation
± 44
V
Vi
± 22
500
± 22
V
Ptot
500
mW
Output Short-circuit Duration (note 2)
Infinite
–40, +105
–65, +150
Toper
Tstg
Operating Free-air Temperature Range
Storage Temperature Range
–55, +125
–65, +150
0, +70
oC
oC
–65, +150
Notes : 1. For supply voltage less than maximum value, the absolute maximum input voltage is equal to the supply
voltage.
2. Any of the amplifier outputs can be shorted to ground indefinitely ; however, more than one should not be
simultaneously shorted as the maximum junction temperature will be exceeded.
2/9
LM148 - LM248 - LM348
ELECTRICAL CHARACTERISTICS
VCC = ±15V, Tamb = 25oC (unless otherwise specified)
LM148 - LM248 - LM348
Unit
Symbol
Parameter
Min.
Typ.
Max.
Vio
Input Offset Voltage (RS ≤ 10kΩ)
Tamb = 25oC
mV
nA
1
5
6
Tmin. ≤ Tamb ≤ Tmax.
Iio
Input Offset Current
Tamb = 25oC
2
25
75
Tmin. ≤ Tamb ≤ Tmax.
Iib
Input Bias Current
nA
Tamb = 25oC
30
100
300
Tmin. ≤ Tamb ≤ Tmax.
Avd
Large Signal Voltage Gain (Vo = ±10V, RL = 2kΩ)
V/mV
dB
Tamb = 25oC
50
25
160
100
2.1
Tmin. ≤ Tamb ≤ Tmax.
SVR
ICC
Supply Voltage Rejection Ratio (RS ≤ 10kΩ)
Tamb = 25oC
77
77
Tmin. ≤ Tamb ≤ Tmax.
Supply Current, all Amp, no Load
mA
V
Tamb = 25oC
3.6
4.8
Tmin. ≤ Tamb ≤ Tmax.
Vicm
CMR
Input Common Mode Voltage Range
Tamb = 25oC
±12
±12
Tmin. ≤ Tamb ≤ Tmax.
Common Mode Rejection Ratio (RS ≤ 10kΩ)
dB
Tamb = 25oC
70
70
110
25
Tmin. ≤ Tamb ≤ Tmax.
IOS
Output Short-circuit Current
Tamb = 25oC
mA
V
10
35
± Vopp
Output Voltage Swing
Tamb = 25oC
RL = 10kΩ
RL = 2kΩ
RL = 10kΩ
RL = 2kΩ
12
10
12
10
13
12
Tmin. ≤ Tamb ≤ Tmax.
SR
tr
Slew Rate (V = ±10V, RL = 10kΩ, CL = 100pF,
V/µs
µs
I
unity Gain)
0.25
0.5
0.3
Rise Time (VI = ±10V, RL = 10kΩ, CL = 100pF,
unity Gain)
KOV
Overshoot (V = ±10V, RL = 10kΩ, CL = 100pF,
%
I
unity Gain)
5
RI
Input Resistance
0.8
0.7
2.5
MΩ
GBP
Gain Bandwidth Product (VI = 10 mV, RL = 10kΩ,
CL = 100pF, f = 100kHz)
MHz
1.3
THD
en
Total Harmonic Distortion (f = 1kHz, Av = 20dB,
%
RL = 10kΩ, CL = 100pF, Vo = 2Vpp
)
0.08
Equivalent Input Noise Voltage
(f = 1kHz, Rs = 100Ω)
nV
√Hz
40
Vo1/Vo2
Channel Separation
120
dB
3/9
LM148 - LM248 - LM348
4/9
LM148 - LM248 - LM348
5/9
LM148 - LM248 - LM348
6/9
LM148 - LM248 - LM348
TEST CIRCUITS
5kΩ
10kΩ
1kΩ
100Ω
eI
1/4
LM148
1/4
LM148
eO
(10V peak)
eO
Crosstalk = -20 log
CC = 15V
(dB)
eO
101 x
V
7/9
LM148 - LM248 - LM348
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC DIP
Millimeters
Inches
Typ.
Dimensions
Min.
0.51
1.39
Typ.
Max.
Min.
0.020
0.055
Max.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
0.335
0.100
0.600
2.54
15.24
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
8/9
LM148 - LM248 - LM348
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC MICROPACKAGE (SO)
Millimeters
Dimensions
Inches
Min.
Typ.
Max.
1.75
0.2
Min.
Typ.
Max.
0.069
0.008
0.063
0.018
0.010
A
a1
a2
b
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
45o (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.334
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
4.6
0.5
4.0
5.3
0.150
0.181
0.020
0.157
0.208
0.050
0.027
G
L
1.27
0.68
M
S
8o (max.)
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsi-
bility 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 SGS-THOMSON
Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes
and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical
components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco
The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
9/9
相关型号：
©2020 ICPDF网 联系我们和版权申明