The LF442 IC consists of two low power operational amplifiers with the same AC characteristics as the industry standard LM1458 while greatly improving the DC characteristics of the LM1458. The IC is constructed using the junction field effect transistor technology (JFET). The IC is always available in an 8 – pin hermetically sealed dual in line IC packaging (DIP); LF442 is pin compatible with the LM1458 allowing an immediate 10 times reduction in power drain in many applications. LF442 also offers many additional features such as high input impedance, high gain bandwidth, low power dissipation, and high noise immunity, etc.
JFET Input Operational Amplifier
JFET (Junction field effect transistor) input operational amplifier is a simple electronic configuration that boosts up a voltage of lower strength to a higher level. Operational amplifiers are usually designed to be used with external feedback components such as resistors and capacitors. JFET operational amplifiers are also an essential feature for many audio instrumentation tools such as a decibel meter (dB meter). They are also a key feature of nearly every major analog electronic testing equipment.
LF442 Pinout
LF442 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | OUTPUT 1 | Output Of Amplifier 1 |
| 2 | IN 1 | Input 1 Of Amplifier 1 |
| 3 | IN 2 | Input 2 Of Amplifier 1 |
| 4 | VEE | Emitter Supply |
| 5 | IN 1 | Input 1 Of Amplifier 2 |
| 6 | IN 2 | Input 2 Of Amplifier 2 |
| 7 | OUTPUT 2 | Output Of Amplifier 2 |
| 8 | VCC | Collector Supply Voltage |
LF442 Features and Applications
- Low Supply Current: 200 µA/Amplifier
- High Slew Rate: 6.0 V/µs
- Low Input Bias Current: 5.0 pA
- High Gain Bandwidth: 2.0 MHz
- High Input Impedance: 1012 Ω
- Large Output Voltage Swing: ±14 V
- Output Short Circuit Protec
Application
- High Speed Integrators
- Fast D/A Converters
- Sample and Hold Circuits
LF442 Datasheet
You can download this datasheet for LF442 Dual JFET Input Op-Amp from the link given below:
See Also: CD4052 Differential 4-channel Multiplexer/Demultiplexer Datasheet | CD4066 Quad Bilateral Switch – Datasheet | CD4030 Quad EXCLUSIVE-OR Gate -Datasheet
