Order this document by LF441C/D
Low Power JFET Input
Operational Amplifiers
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
LF441C
LF442C
LF444C
LOW POWER
JFET INPUT
OPERATIONAL AMPLIFIERS
SEMICONDUCTOR
TECHNICAL DATA
•
•
•
•
•
•
Low Input Bias Current: 5.0 pA
High Gain Bandwidth: 2.0 MHz
High Slew Rate: 6.0 V/µs
High Input Impedance: 1012
Ω
Large Output Voltage Swing:
±14
V
Output Short Circuit Protection
8
1
8
1
N SUFFIX
PLASTIC PACKAGE
CASE 626
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Representative Schematic Diagram
(Each Amplifier)
VCC
PIN CONNECTIONS
Offset Null
Inputs
VEE
R4
Output
Output 1
Inputs 1
1
2
3
4
8
1
2
3
4
8
–
+
7
6
5
Q7
J1
Inputs
+
Q3
Q1
Q2
Q4
C1
C2
Q5
Q6
J2
D2
R3
D1
NC
VCC
Output
Offset Null
(Single, Top View)
1
2
–
+
7
VCC
Output 2
Inputs 2
VEE
–
+
5
6
(Dual, Top View)
R1
R2
R5
VEE
5
*
+
1
5
1.5 kΩ
VEE
100 kΩ
14
1
1
1
*
14
*Null adjustment pins for LF441 only.
LF441C input offset voltage
null adjust circuit
N SUFFIX
PLASTIC PACKAGE
CASE 646
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
PIN CONNECTIONS
ORDERING INFORMATION
Device
LF441CD
LF441CN
LF442CD
LF442CN
LF444CD
LF444CN
Function
Single
Dual
Quad
Operating
Temperature Range
Package
SO–8
Plastic DIP
TA = 0° to +70°C
70°C
SO–8
Plastic DIP
SO–14
Plastic DIP
Output 1
Inputs 1
VCC
Inputs 2
6
1
2
3
14
Output 4
Inputs 4
–
1
4
–
+
13
12
11
+
4
5
VEE
Inputs 3
+
–
2
3
+
–
10
9
8
Output 2
7
Output 3
(Quad, Top View)
©
Motorola, Inc. 1996
Rev 0
MOTOROLA ANALOG IC DEVICE DATA
1