LM2900 Operational Amplifier: Datasheet, Equivalent, Pinout

LM2900 Pinout

Pin Description

LM2900 Operational Amplifier consists of four independent, high gain frequency-compensated Norton operational amplifiers that were designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies is also possible. The low supply current drain is essentially independent of the magnitude of the supply voltage. These devices provide wide bandwidth and large output voltage swings.

LM2900 Symbol

LM2900 Footprint

LM2900 3D Model

Texas Instruments LM2900N technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM2900N.

•  Wide Range of Supply Voltages, Single or Dual Supplies

•  Wide Bandwidth

•  Large Output Voltage Swing

•  Output Short-Circuit Protection

•  Internal Frequency Compensation

•  Low Input Bias Current

•  Designed to Be Interchangeable With National Semiconductor LM2900 and LM3900, Respectively

• Line Drivers

• Line Receivers

• Active Filters

• Preamplifiers

• Integrators

• Crossover Networks

• Unity-Gain Buffer

• Relaxation Oscillator

• Voltage regulator

• Current differentiator

IRF3205, IRF250, IRF840.

The LM2900 Operational Amplifier is made up of four separate, high-gain frequency-compensated Norton operational amplifiers that were designed to operate over a wide variety of voltages from a single source. It's also feasible to run on split supplies. The amount of the supply voltage has little effect on the low supply current drain. These devices have a big output voltage swing and a wide bandwidth.

The current mirror at the non-inverting input may readily subtract the current at the inverting input from the current at the inverting input, which is amplified with a gain of 70 dB overall. The output saturates low if the non-inverting input value is more than the inverting input value, and high if the inverting input value is less. The difference current is reduced by feedback from the output to the inverting input, which is normally extremely tiny. As a result, this op-amp works with a voltage rather than a current.

The LM2900 op-amp is configured as a relaxation oscillator in the below configuration, and as you can see in the output, we have a lovely square wave at the output of the op-amp, oscillating at 250 Hz with the values provided.

How to use LM2900

To comprehend this circuit, look at the output waveform for the IC's slew rate. Assume that the output swings from 0 to supply voltage and that a tiny quantity of current flows through the non-inverting input. The capacitor charges when the output goes high, and the charging process continues until the voltage hits a specified threshold, at which point the op-output amps goes low, and the cycle repeats. For a 24V supply, the levels are 14.4V and 7.2V, respectively. We only expect broad agreement because this is a very approximate calculation. A relaxation oscillator works in this manner.

Texas Instruments (TI) emerges as a globally recognized semiconductor manufacturer expanded into 35 countries. It has seen rapid growth. In 1958, TIer firstly introduced the working integrated circuit. And today more than 30,000 TIers worldwide are committed to designing, manufacturing, and selling analogue and embedded processing chips. They aspire to solve challenges as well as change the world through their technologies.

Download datasheets and manufacturer documentation for Texas Instruments LM2900N.