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Motorola Semiconductors - LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS

Numéro de référence LF444C
Description LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS
Fabricant Motorola Semiconductors 
Logo Motorola Semiconductors 





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LF444C fiche technique
Low Power JFET Input
Operational Amplifiers
Order this document by LF441C/D
LF441C
LF442C
LF444C
These JFET input operational amplifiers are designed for low power
applications. They feature high input impedance, low input bias current and
low input offset current. Advanced design techniques allow for higher slew
rates, gain bandwidth products and output swing. The LF441C device
provides for the external null adjustment of input offset voltage.
These devices are specified over the commercial temperature range. All
are available in plastic dual in–line and SOIC packages.
Low Supply Current: 200 µA/Amplifier
Low Input Bias Current: 5.0 pA
High Gain Bandwidth: 2.0 MHz
High Slew Rate: 6.0 V/µs
High Input Impedance: 1012
Large Output Voltage Swing: ±14 V
Output Short Circuit Protection
Inputs
Representative Schematic Diagram
(Each Amplifier)
VCC
J1 J2
+
Q3
Q1 Q2
D2
Q4 C1
Q5
Q7
R3 R4
D1
Output
C2
Q6
LOW POWER
JFET INPUT
OPERATIONAL AMPLIFIERS
SEMICONDUCTOR
TECHNICAL DATA
8
1
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Offset Null 1
2
Inputs
3
VEE 4
+
8 NC
7 VCC
6 Output
5 Offset Null
(Single, Top View)
Output 1 1
8 VCC
Inputs 1
2
1
3+
VEE 4
2
7
6
+5
Output 2
Inputs 2
(Dual, Top View)
R1 R2 R5
1*
5*
*Null adjustment pins for LF441 only.
VEE
+ 5 1.5 k
1
100 k
LF441C input offset voltage
null adjust circuit
VEE
Device
LF441CD
LF441CN
LF442CD
LF442CN
LF444CD
LF444CN
ORDERING INFORMATION
Function
Operating
Temperature Range
Single
Dual
Quad
TA = 0° to +70°C
Package
SO–8
Plastic DIP
SO–8
Plastic DIP
SO–14
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
14
1
N SUFFIX
PLASTIC PACKAGE
CASE 646
14
1
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
PIN CONNECTIONS
Output 1 1
2
Inputs 1
3
+
VCC 4
Inputs 2
+
5
6
Output 2 7
1
2
14 Output 4
13
4 12
+
Inputs 4
11 VEE
+
10
3 9
Inputs 3
8 Output 3
(Quad, Top View)
© Motorola, Inc. 1996
Rev 0
1

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