LM2902 is a part of the LM290x IC series. LM2902 consists of four low-power, high gain, frequency compensated operational amplifiers. The op-amp is stable at unity gain and does not have a reverse phase in overdrive conditions. The design for ESD gives the LM2902 an HBM specification for a minimum of 2 kV. The IC is available in a 14 – pin hermetically sealed dual inline IC packaging (DIP). LM2902 is directly compatible with almost every CMOS, PMOs, and NMOS device.
Operational Amplifier
An operational amplifier is a voltage amplifying device; that is designed with the intention to be used with external feedback components such as resistors and capacitors between its I/O terminals. These feedback components determine the resulting function or “operation” of the amplifier and by virtue of the different feedback configurations whether resistive, capacitive or both.
LM2902 Pinout
LM2902 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | OUTPUT 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 | V+ | Positive Power Supply |
| 5 | NON-INV-INPUT 2 | Non Inverting Input Of Amplifier 2 |
| 6 | INV-INPUT 2 | Inverting Input Of Amplifier 2 |
| 7 | OUTPUT 2 | Output Of Amplifier 2 |
| 8 | OUTPUT 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 | GND | Ground Pin |
| 12 | NON-INV-INPUT 4 | Non Inverting Input Of Amplifier 4 |
| 13 | INV-INPUT 4 | Inverting Input Of Amplifier 4 |
| 14 | OUTPUT 4 | Output Of Amplifier 4 |
LM2902 Features
- Internally frequency compensated for unity gain
- Large DC voltage gain 100 dB
- Wide bandwidth (unity gain) 1 MHz (temperature compensated)
- Very low supply current drain (700 µA) — essentially independent of supply voltage
- Low input biasing current 45 nA (temperature compensated)
- Low input offset voltage 2 mV and offset current: 5 nA
- Input common-mode voltage range includes ground
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing 0V to V+ − 1.5V
Application
- Summing Amplifier
- Power Amplifier
- LED Driver
- Multivibrators
- Oscillators
- Transducer Amplifiers
- DC Gain Blocks
LM2902 Datasheet
You can download this datasheet for LM2902 Low Power Quad Operational Amplifier from the link given below:
See Also: CD4066 Quad Bilateral Switch – Datasheet | CD4034 8-Stage Bidirectional Bus Register – Datasheet | CD4044 Quad 3-state NAND R-S Latch Tristate – Datasheet
