ST LM148, LM248, LM348 Operation Manual

LM148 LM248 LM348
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
LOW SUPPLY CURRENT: 0.53mA/AMPLI-
FIER
CLASS AB OUTPUT STAGE: NO CROSS
OVER DIST ORTION
PIN COMPATIBLE WITH LM124
LOW INPUT OFFSET VOLTAGE: 1mV
LOW INPUT OFFSET CURRENT: 2nA
GAIN BANDWIDTH PRODUCT: 1.3MHz
HIGH DEGREE OF IS OLATION BETWEEN
AMPLIFIERS: 120dB
OVERLOAD PROT ECTION FOR INPUTS
AND OUTPUTS
DESCRIPTION
The LM148 consists of four independent, high gain internally compensated, low power opera­tional amplifiers which have been designed to pro­vide functional characteristics identical to those of the familiar UA741 operat ional amplifier. In addi­tion the total supply current for all four amplifiers is compatible to the supply current of a single UA741 type op amp. Other features inclu de inpu t of fset 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 qhich minimize thermal cou­pling.
The LM148 can be used anywhere multiple UA741 type amplifiers are being used and in appli­cations where amplifier matching or high packaing density is required.
ORDER CODE
Part
Number
Temperature
Range
LM148 -55°C, +125°C LM248 -40°C, +105°C LM348 0°C, +70°C
Example : LM348D
Package
ND
••
••
••
N
DIP14
(Plastic Package)
D
(Plastic Micropackage)
PIN CONNECTIONS (top view)
1
Output 1
V
CC
Output 2
2
3
+
4
5
6
7
Inverting Input 1
Non-inverting Input 1
Non-inverting Input 2
Inverting Input 2
SO14
14
13
-
+
+
-
-
+
12
11
10
+
­9
8
Output 4
Inverting Input 4
Non-inverting Input 4
-
V
CC
Non-inverting Input 3
Inverting Input 3
Output 3
N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available i n Tape & Reel (DT)
March 2002
1/5
LM148-LM248-LM348
SCHEMATIC DIAGRAM
Non-inverting input
Inverting
input
Vcc+
25W
Output
350kW
Vcc+
2.5kW
60kW
7.4pF
Vcc+
60W
340W
36kW
Vcc-
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter LM148 LM248 LM348 Unit
V
P
T
T
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 indefinitly; however more than one should not be simultaneously shorted as the maximum
Supply voltage ±22 V
CC
V
Input Voltage
i
V
Differential Input Voltage ±44 V
id
Output Short-circuit Duration Power Dissipation 500 mW
tot
Operating Free-air Temperature Range -55 to +125 -40 to +105 0 to +70 °C
oper
Storage Temperature Range -65 to +150 °C
stg
junction will be exceeded.
1)
2)
±22 V
Infinite
2/5
Loading...
+ 3 hidden pages