Parth Electronics Corporation

Features■ Good consumption/speed ratio: only 200 μA for2.1 MHz, 2 V/μs■ Single (or dual) supply operation from +4 V to+44 V (±2 V to ±22V)■ Wide input common mode mode voltage rangeincluding VCC-■ Low level output voltage close to VCC- :100 mV typical■ Pin-to-pin compatible with standard dualoperational amplifiersDescriptionThe MC3x172 series are dual bipolar operationalamplifiers offering both low consumption(200 μA/Amp) and good speed (2.1 MHz, 2 V/μs).Moreover, the input common mode range extendsdown to the lower supply rail, allowing singlesupply operation from +4 V to +44 V.

Features 
1• Equivalent Input Noise Voltage: The NE5532, NE5532A, SA5532, and SA5532A devices are high-performance operational amplifiers 5 nV/√Hz Typ at 1 kHz combining excellent DC and AC characteristics. They • Unity-Gain Bandwidth: 10 MHz Typ feature very low noise, high output-drive capability, • Common-Mode Rejection Ratio: 100 dB Typ high unity-gain and maximum-output-swing bandwidths, low distortion, high slew rate, input- • High DC Voltage Gain: 100 V/mV Typ protection diodes, and output short-circuit protection. • Peak-to-Peak Output Voltage Swing 26 V Typ These operational amplifiers are compensated With VCC± = ±15 V and RL = 600 Ω internally for unity-gain operation. These devices • High Slew Rate: 9 V/μs Typ have specified maximum limits for equivalent input noise voltage. 

Description The KA324 series consist of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide voltage range. Operation from split power supplies is also possible so long as the difference between the two supplies is 3 V to 32 V. Application areas include transducer amplifier, DC gain blocks and all the conventional OP Amp circuits which now can be easily implemented in single power supply systems.
Features • Internally Frequency Compensated for Unity Gain • Large DC Voltage Gain: 100 dB • Wide Power Supply Range: KA324 / KA324A: 3 V ~ 32 V (or ±1.5 V ~ 16 V) KA2902: 3 V ~ 26 V (or ±1.5 V ~ 13 V) • Input Common Mode Voltage Range Includes Ground • Large Output Voltage Swing: 0 V to VCC -1.5 V • Power Drain Suitable for Battery Operation

The LMx39-N series consists of four independent 1• Wide Supply Voltage Range precision voltage comparators with an offset voltage • LM139/139A Series 2 to 36 VDC or ±1 to ±18 VDC specification as low as 2 mV maximum for all four • LM2901-N: 2 to 36 VDC or ±1 to ±18 VDC comparators. These comparators were designed • LM3302-N: 2 to 28 V specifically to operate from a single power supply DC or ±1 to ±14 VDC over a wide range of voltages. Operation from split • Very Low Supply Current Drain (0.8 mA) — power supplies is also possible and the low power Independent of Supply Voltage supply current drain is independent of the magnitude • Low Input Biasing Current: 25 nA of the power supply voltage. These comparators also • Low Input Offset Current: ±5 nA have a unique characteristic in that the input common-mode voltage range includes ground, even • Offset Voltage: ±3 mV though they are operated from a single power supply • Input Common-Mode Voltage Range Includes voltage. GND The LMx39-N series was designed to directly • Differential Input Voltage Range Equal to the interface with TTL and CMOS. When operated from Power Supply Voltage both plus and minus power supplies, the devices • Low Output Saturation Voltage: 250 mV at 4 mA directly interface with MOS logic— where the low power drain of the LM339 is a distinct advantage over • Output Voltage Compatible With TTL, DTL, ECL, MOS, standard comparators. and CMOS Logic Systems • Advantages: Device Information(1) – High-Precision Comparators PART NUMBER PACKAGE BODY SIZE (NOM) – Reduced VOS Drift Overtemperature LM139-N CDIP (14) 19.56 mm × 6.67 mm – Eliminates Need for Dual Supplies LM239-N – Allows Sensing Near GND SOIC (14) 8.65 mm × 3.91 mm LM2901-N – Compatible With All Forms of Logic PDIP (14) 19.177 mm × 6.35 mm – Power Drain Suitable for Battery Operation

• Applications

The  LM324's features, especially the single-supply operation and rail-to-ground input capability, make it suitable for a vast array of circuits:

• Active Filters: Low-pass, high-pass, and band-pass filters.

• Comparators: Comparing two voltage levels (though specialized comparators are faster).

• Sensor Signal Conditioning: Amplifying and buffering signals from sensors (e.g., temperature, light).

• DC Gain Blocks: Providing stable DC voltage gain.

• Oscillators and Waveform Generators: Generating square, sine, or triangular waves.

The video below offers an introduction to the LM324 Op Amp and its basic functions for beginners.