LM148 LM248 - LM348 FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS
.. .. .. .. .
LOW SUPPLY CURRENT : 0.53mA/AMPLIFIER CLASS AB OUTPUT STAGE : NO CROSSOVER 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 OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS
N DIP14 (Plastic Package)
D SO14 (Plastic Micropackage)
ORDER CODES Part Number
Package
Temperature Range
N
D
–55oC, +125oC
•
•
LM248
o
–40 C, +105 C
•
•
LM348
0 oC, +70oC
•
•
LM148
o
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 identical to those of the familiar UA741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single UA741 type op amp. Other features include input offset current and input bias current which are much less than those of a standard UA741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. The LM148 can be used anywhere multiple UA741 type amplifiers are being used and in applications where amplifier matching or high packing density is required. November 1997
O u tpu t 1
1
14
Ou tpu t 4
In ve rt i n g i n p u t 1
2
13
I n v e r ti n g i n p u t 4
N o n -i n ve r t i n g i n p u t 1
3
12
N o n -i n v e r t i n g i n p u t 4
4
11
V
N on- inv er ting in pu t 2
5
10
N o n -i n v e r t i n g i n p u t 3
I n v e r ti ng i n p u t 2
6
9
I n ve r ti n g i n p u t 3
Out put 2
7
8
Ou tp u t 3
+ CC
V
CC
-
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LM148 - LM248 - LM348 SCHEMATIC DIAGRAM
V CC
25 Ω Inverting Input
Non-inverting inpu t
12k
Ω Output
Ω
350k
25 Ω
7.4pF V CC
2.5 k Ω
V CC
60k
Ω 340 Ω
60k
Ω 36k
Ω
V CC
ABSOLUTE MAXIMUM RATINGS Symbol
LM148
LM248
LM348
Unit
VCC
Supply Voltage
± 22
± 22
± 22
V
Vid
Differential Input Voltage
±44
± 44
± 44
V
Vi
Input Voltage (note 1)
± 22
± 22
± 22
V
Power Dissipation
500
500
500
mW
Ptot
Parameter
Output Short-circuit Duration (note 2)
Infinite
Toper
Operating Free-air Temperature Range
–55, +125
–40, +105
0, +70
o
Tstg
Storage Temperature Range
–65, +150
–65, +150
–65, +150
o
C C
No tes : 1. F or suppl y volt age less than maxi mum value, t he absol ut e maxi mum i nput volt age i s equal to t he suppl y volt age. 2. Any of the ampl if i er output s can be short ed to ground i ndefi nit ely ; however , mor e than one s houl d not be si mult aneousl y shor ted as the maxi mum juncti on t emper atur e wi l l be exceeded.
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LM148 - LM248 - LM348 ELECTRICAL CHARACTERISTICS VCC = ±15V, T amb = 25oC (unless otherwise specified) Symbol Vio
Iio
Iib
Avd
SVR
ICC
LM148 - LM248 - LM348
Parameter
Min.
Typ.
Max.
Input Offset Voltage (RS ≤ 10kΩ) o Tamb = 25 C Tmin. ≤ Tamb ≤ Tmax.
1
5 6
Input Offset Current Tamb = 25oC Tmin. ≤ Tamb ≤ Tmax.
2
25 75
Input Bias Current Tamb = 25oC Tmin. ≤ Tamb ≤ Tmax.
30
100 300
mV
nA
nA
Large Signal Voltage Gain (Vo = ±10V, RL = 2kΩ) o Tamb = 25 C Tmin. ≤ Tamb ≤ Tmax.
50 25
160
Supply Voltage Rejection Ratio (RS ≤ 10kΩ) Tamb = 25oC Tmin. ≤ Tamb ≤ Tmax.
77 77
100
V/mV
dB
Supply Current, all Amp, no Load o Tamb = 25 C Tmin. ≤ Tamb ≤ Tmax.
mA 2.1
Vicm
Input Common Mode Voltage Range o Tamb = 25 C Tmin. ≤ Tamb ≤ Tmax.
±12 ±12
CMR
Common Mode Rejection Ratio (RS ≤ 10kΩ) o Tamb = 25 C Tmin. ≤ Tamb ≤ Tmax.
70 70
110
Output Short-circuit Current o Tamb = 25 C
10
25
12 10 12 10
13 12
0.25
0.5
IOS ± Vopp
Output Voltage Swing Tamb = 25oC Tmin. ≤ Tamb ≤ Tmax.
SR tr KOV RI GBP THD en Vo1/Vo2
Unit
3.6 4.8 V
dB
mA 35 V RL RL RL RL
= = = =
10kΩ 2kΩ 10kΩ 2kΩ
Slew Rate (VI = ±10V, RL = 10kΩ, C L = 100pF, unity Gain)
V/µs
Rise Time (VI = ±10V, R L = 10kΩ, CL = 100pF, unity Gain)
0.3
µs
Overshoot (VI = ±10V, RL = 10kΩ, C L = 100pF, unity Gain)
5
%
Input Resistance
0.8
2.5
Gain Bandwidth Product (VI = 10 mV, RL = 10kΩ, C L = 100pF, f = 100kHz)
0.7
1.3
Total Harmonic Distortion (f = 1kHz, Av = 20dB, R L = 10kΩ, CL = 100pF, Vo = 2Vpp)
MΩ MHz %
0.08
Equivalent Input Noise Voltage (f = 1kHz, Rs = 100Ω)
40
nV √ Hz
Channel Separation
120
dB
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LM148 - LM248 - LM348
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LM148 - LM248 - LM348
5/9
LM148 - LM248 - LM348
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LM148 - LM248 - LM348
TEST CIRCUITS
5kΩ
10kΩ
1kΩ
100Ω
eI 1/4 LM148
eO (10V peak)
1/4 LM148
Crosstalk = -20 log
eO 101 x e O
(dB)
VCC = 15V
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LM148 - LM248 - LM348
PM-DIP14.EPS
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP
a1 B b b1 D E e e3 F i L Z
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Min. 0.51 1.39
Millimeters Typ.
Max. 1.65
Min. 0.020 0.055
0.5 0.25
Inches 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
DIP14.TBL
Dimensions
LM148 - LM248 - LM348
PM-SO14.EPS
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC MICROPACKAGE (SO)
A a1 a2 b b1 C c1 D E e e3 F G L M S
Min.
Millimeters Typ.
0.1 0.35 0.19
Max. 1.75 0.2 1.6 0.46 0.25
Min.
Inches Typ.
0.004 0.014 0.007
0.5
Max. 0.069 0.008 0.063 0.018 0.010
0.020 o
45 (typ.) 8.55 5.8
8.75 6.2
0.336 0.228
1.27 7.62 3.8 4.6 0.5
0.334 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
SO14.TBL
Dimensions
o
8 (max.)
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 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 componen ts in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. ORDER CODE :
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.
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