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LM146D Datasheet

  • LM146D

  • STMicroelectronics [PROGRAMMABLE QUAD BIPOLAR OPERATIONAL A...

  • STMICROELECTRONICS   STMICROELECTRONICS

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LM146
LM246 - LM346
PROGRAMMABLE
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
.
.
.
.
.
.
.
.
.
PROGRAMMABLE ELECTRICAL CHARAC-
TERISTICS
BATTERY POWERED OPERATION
LOW SUPPLY CURRENT (250碌A(chǔ)/amplifier)
GAIN-BANDWIDTH PRODUCT : 1MHz
LARGE DC VOLTAGE GAIN : 120dB
LOW NOISE VOLTAGE : 28nV/VHz
WIDE POWER SUPPLY RANGE :
鹵1.5V
to
鹵22V
CLASSE AB OUTPUT STAGE. NO CROSS-
OVER DISTORTION
OVERLOAD PROTECTION FOR INPUTS AND
OUTPUTS
N
DIP16
(Plastic Package)
D
SO16
(Plastic Micropackage)
ORDER CODES
Part
Number
LM146
LM246
Temperature
Range
鈥?5
o
C, +125
o
C
鈥?0 C, +105 C
0
o
C, +70
o
C
o
o
Package
N
鈥?/div>
鈥?/div>
鈥?/div>
D
鈥?/div>
鈥?/div>
鈥?/div>
DESCRIPTION
The LM346 consists of four independent, high gain,
internally compensated, low power programmable
amplifiers. Two external resistors (R
set
) allow the
user to program the gain-bandwith product, slew
rate, supply current, input bias current, input offset
current and input noise. For example the user can
trade-off supply current for bandwidth or optimize
noise figure for a given source resistance. In a simi-
lar way other amplifier characteristics 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
set
= 10碌A(chǔ))
Gain-bandwidthproduct = 1MHz (I
set
= 10碌A(chǔ))
Slew rate = 0.5V/碌s (I
set
= 10碌A(chǔ))
Input bias current
鈮?0
nA (I
set
= 10碌A(chǔ))
I
set
= current into pin 8 and pin 9
(see schematic diagram)
V
CC
+
鈭?/div>
V
CC
鈭?/div>
鈭?/div>
0.6V
I
set
=
R
set
November 1997
LM346
Example :
LM246N
PIN CONNECTIONS
(top view)
Output1
Inverting input 1
Non-invertinginput 1
V +
CC
Non-invertinginput 2
Inverting input 2
Output2
Set
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Output4
Inverting input 4
Non-invertinginput 4
VCC
Non-invertinginput 3
Inverting input 3
Output 3
Set
1/9

LM146D PDF文件相關(guān)型號

LM246N

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