LM246 ST Microelectronics, Inc., LM246 Datasheet
LM246
Manufacturer Part Number
LM246
Description
Programmable Quad Bipolar Operational Amplifiers
Manufacturer
ST Microelectronics, Inc.
Datasheet
1.LM246.pdf
(4 pages)
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DESCRIPTION
The LM346 consists of four independent, high
gain, internally compensated, low power program-
mable amplifiers. Two external resistors (R
low the user to program the gain-bandwith prod-
uct, slew rate, supply current, input bias current,
input offset current and input noise. For example
the user can trade-off supply current for bandwith
or optimize noise figure for a given source resis-
tance. In a similar way other amplifier characteris-
tics can be tailored to the application.
Except for the two programming pins at the end of
the package the LM346 pin out is the same as the
LM324 and LM348.
PROGRAMMING EQUATIONS :
Total supply current = 1mA (I
Gain bandwith product = 1MHz (I
Slew rate = 0.5V/ s (I
Input bias current 30nA (I
diagram)
ORDER CODE
N = Dual in Line Package (DIP))
I
I se t
set
LM146
LM246
LM346
Example : LM246N
April 2003
Number
PROGRAMMABLE ELECTRICAL CHARAC-
TERISTICS
LOW SUPPLY CURRENT (250 A/amplifier)
GAIN-BANDWITH PRODUCT : 1MHz
LARGE DC VOLTAGE GAIN : 120dB
LOW NOISE VOLTAGE : 28nV/ Hz
WIDE POWER SUPPLY RANGE / ±1.5V to
±22V
CLASSE AB OUTPUT STAGE. NO
CROSS-OVER DISTORTION
OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
= current into pin 8 and pin 9 (see schematic
Part
=
Vcc+ Vcc
---------------------------------------------------- -
–
R
-55°C, +125°C
-40°C, +105°C
Temperature
set
0°C, +70°C
-
Range
–
0.6 V
set
= 10
set
set
= 10
QUAD BIPOLAR OPERATIONAL AMPLIFIER
= 10 A)
set
Package
= 10 A)
N
set
) al-
PIN CONNECTIONS (top view)
(Plastic Package)
PROGRAMMABLE
DIP16
N
LM146
LM246
LM346
1/4
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