|
|
Número de pieza | LF444C | |
Descripción | LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de LF444C (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! ON Semiconductort
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
• 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
Representative Schematic Diagram
(Each Amplifier)
VCC
Inputs
J1 J2
+
Q3
Q1
Q2
Q4
R1 R2 R5
1*
5*
*Null adjustment pins for LF441 only.
Q7
D2 R3
D1
R4
Output
C1
C2
Q5 Q6
VEE
+ 5 1.5 kΩ
1
100 kΩ
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
LF441C
LF442C
LF444C
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)
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)
© Semiconductor Components Industries, LLC, 2002
March, 2002 – Rev. 1
1
Publication Order Number:
LF441C/D
1 page LF441C LF442C LF444C
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-75
Figure 11. Normalized Gain Bandwidth
Product versus Temperature
VCC = +15 V
VEE = -15 V
RL = 10 kΩ
CL = 100 pF
-50 -25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 12. Open Loop Voltage Gain and
Phase versus Frequency
20 90
Phase
10 135
0
VCC = +15 V
-10
VEE = -15 V
RL = 10 kΩ
CL = 100 pF
-20 TA = 25°C
Gain
0.1 1.0
f, FREQUENCY (MHz)
180
225
270
10
Figure 13. Slew Rate versus Temperature
8.0
7.0
6.0
5.0 VCC = +15 V
VEE = -15 V
RL = 10 kΩ
4.0 AV = +1.0
-75 -50 -25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 14. Total Output Distortion
versus Frequency
2.5
VCC = +15 V
2.0
VEE = -15 V
TA = 25°C
1.5
1.0
0.5
0
10
AV = 100
AV = 10
100 1.0 k
f, FREQUENCY (Hz)
10 k
100 k
Figure 15. Output Voltage Swing
versus Frequency
30
20
VCC = +15 V
10
VEE = -15 V
RL = 10 kΩ
AV = +1.0
1% THD
TA = 25°C
0
1.0 k
10 k 100 k
f, FREQUENCY (Hz)
1.0 M
Figure 16. Open Loop Voltage
Gain versus Frequency
100
80
60
40
VCC = +15 V
20 VEE = -15 V
RL = 10 kΩ
0 TA = 25°C
0.1 1.0
10
100 1.0 k 10 k 100 k 1.0 M 10 M
f, FREQUENCY (Hz)
http://onsemi.com
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet LF444C.PDF ] |
Número de pieza | Descripción | Fabricantes |
LF444 | Quad Low Power JFET Input Operational Amplifier | National Semiconductor |
LF444 | LF444 Quad Low Power JFET Input Operational Amplifier (Rev. D) | Texas Instruments |
LF444-DIE | Quad Low Power JFET Input Operational Amplifier | Texas Instruments |
LF444C | LOW POWER JFET INPUT OPERATIONAL AMPLIFIERS | Motorola Semiconductors |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |