For dual B versions, see LM358B and LM2904B.Input voltage differential can be driven up to supply voltage.Common-mode input voltage range includes V–.Low input bias current: 50 nA maximum (across –40☌ to 125☌).EMI rejection: integrated RF and EMI filter.Low input offset voltage: ☒ mV (BA version) / 3 mV (B version).Supply range: 3 V to 36 V (B, BA versions).B versions are drop-in replacements for all versions of LM224, LM324, and LM2902.parametric-filter Precision op amps (Vosparametric-filter High-speed op amps (GBW ≥ 50 MHz).parametric-filter General-purpose op amps.parametric-filter Special function amplifiers.parametric-filter Programmable & variable gain amplifiers (PGAs & VGAs).parametric-filter Operational amplifiers (op amps).parametric-filter Instrumentation amplifiers.parametric-filter Fully differential amplifiers.parametric-filter Difference amplifiers.parametric-filter Current-sense amplifiers.parametric-filter Wireless connectivity.parametric-filter Switches & multiplexers.parametric-filter Microcontrollers (MCUs) & processors.

parametric-filter Logic & voltage translation.

The IR signal detection can be done by two procedures, one is directly or in front of each other and the second is by reflection. IR sensors have an infrared transmitter LED and a photodiode, the IR LED emits the IR signals continuously that are detected by the photodiode. This circuit is also comprised of all these components to make it work. In a standard IR sensor circuit, there are three important components, an IR transmitting LED, a photodiode to receive the IR signal/light, and a signal amplification circuit. IR or infrared sensors are used in a lot of electronic devices nowadays like TV, DVDs, and many other appliances. This circuit is really simple and is only using a few components like a battery, an IR LED, photodiode, LM324 op-amp IC, LED, and some discrete components. The purpose of this circuit is to provide a visual indication by activating an LED whenever an object is placed in front of the IR LED and the photodiode.

Here is a simple project of an IR sensor using LM324 IC.

Lm324 pinout download