LM837 IC is a quad operational amplifier designed for low noise, high speed, wide bandwidth performance. It has a unique output stage that can drive a 600Ω load, making it ideal for almost all digital audio, graphic equalizer, preamplifiers, and professional audio applications. Its high performance characteristics also make it suitable for instrumentation applications where low noise is the key consideration. The LM837 is internally compensated for unity gain operation. It is pin compatible with most other standard quad op amps and can therefore be used to upgrade existing systems with little or no change.
Operational Amplifier
Operational amplifiers are simple electronic circuits that can boost a weak signal to a level of higher amplitude. An operational amplifier is generally used in applications such as home entertainment systems, megaphones, speakers, and microphones, etc. An op-amp usually operates with a number of feedback components that determine the resulting function or “operation” of the amplifier and by virtue of the different feedback, configurations whether resistive, capacitive, or both.
LM837 Pinout
LM837 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | OUT 1 | Output Of Amplifier 1 |
| 2 | INV-INPUT 1 | Inverting Input Of Amplifier 1 |
| 3 | NON-INV-INPUT 1 | Non Inverting Input Of Amplifier 1 |
| 4 | VCC | Collector supply voltage |
| 5 | NON-INV-INPUT 2 | Non Inverting Input Of Amplifier 2 |
| 6 | INV-INPUT 2 | Inverting Input Of Amplifier 2 |
| 7 | OUT 2 | Output Of Amplifier 2 |
| 8 | OUT 3 | Output Of Amplifier 3 |
| 9 | INV-INPUT 3 | Inverting Input Of Amplifier 3 |
| 10 | NON-INV-INPUT 3 | Non Inverting Input Of Amplifier 3 |
| 11 | VEE | Emitter Supply |
| 12 | NON-INV-INPUT 4 | Non Inverting Input Of Amplifier 4 |
| 13 | INV-INPUT 4 | Inverting Input Of Amplifier 4 |
| 14 | OUT 4 | Output Of Amplifier 4 |
LM837 Features
- High slew rate 10 V/µs (typ); 8 V/µs (min)
- Wide gain bandwidth product 25 MHz (typ); 15 MHz
- (min)
- Power bandwidth 200 kHz (typ)
- High output current ±40 mA
- Low total harmonic distortion 0.0015%
- Excellent output drive performance >600Ω
- Low input noise voltage 4.5 nV/
- Low offset voltage 0.3 mV
Application
- Voltage follower
- Selective inversion circuit
- Current to voltage converter
- Active rectifier
LM837 Datasheet
You can download this datasheet for LM837 Low-Noise Quad Operational Amplifier 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
