on November 25th 15,452

Comprehensive Guide to LM358P: Pinout and Circuit Design

The LM358P operational amplifier exemplifies the perfect balance between performance and cost-effectiveness, making it a requisite component in countless applications. With its dual high-gain op-amps, the LM358P adapts seamlessly to both single and dual power supply setups, spanning voltages from 3V to 32V. This versatility, combined with internal frequency stabilization, ensures consistent performance in diverse environments. Whether it’s enabling reliable home appliances, optimizing industrial automation systems, or enhancing optoelectronic circuits, the LM358P proves its worth across a broad spectrum of uses. Its practical design and dependable functionality resonate with you aiming to build efficient, innovative systems, highlighting its role as a cornerstone in advancing modern electronics.

Catalog

Pin Configuration

Pin No.	Pin Name	Pin Description
1	Output A	Output of IC's First (A) Section or Operational Amplifier 1
2	Inverting Input A	Inverting Input of IC's First (A) Section or Operational Amplifier 1
3	Non-Inverting Input A	Non-Inverting Input of IC's First (A) Section or Operational Amplifier 1
4	Ground (Gnd)	Ground / Negative for Both Operational Amplifiers
5	Inverting Input B	Inverting Input of IC's Second (B) Section or Operational Amplifier 2
6	Non-Inverting Input B	Non-Inverting Input of IC's Second (B) Section or Operational Amplifier 2
7	Output B	Output of IC's Second (B) Section or Operational Amplifier 2
8	Vcc	Positive Supply of Both Sections / Operational Amplifiers of IC

Features

Feature	Description
Wide Supply Ranges	Single Supply: 3 V to 32 V
	Dual Supplies: ±1.5 V to ±16 V
Low Supply-Current Drain	Independent of Supply Voltage: 0.7 mA (Typical)
Common-Mode Input Voltage Range	Includes Ground, allowing direct sensing near ground
Low Input Bias and Offset Parameters	- Input Offset Voltage: 3 mV (Typical)
	- A Versions: 2 mV (Typical)
	- Input Offset Current: 2 nA (Typical)
	- A Versions: 15 nA (Typical)
	- Input Bias Current: 20 nA (Typical)
	- A Versions: 15 nA (Typical)
Differential Input Voltage Range	Equal to Maximum-Rated Supply Voltage: 32 V
Open-Loop Differential Voltage Gain	100 dB (Typical)
Internal Frequency Compensation	Yes

Technical Specification

Parameter	Value
Package / Case	PDIP-8
Number of Channels	2 Channel
Supply Voltage - Max	32 V
GBP - Gain Bandwidth Product	700 kHz
Output Current per Channel	20 mA
SR - Slew Rate	300 mV/µs
Vos - Input Offset Voltage	7 mV
Supply Voltage - Min	3 V
Minimum Operating Temperature	0 °C
Maximum Operating Temperature	+70 °C
Ib - Input Bias Current	250 nA
Operating Supply Current	350 µA
Shutdown	No Shutdown
CMRR - Common Mode Rejection Ratio	80 dB
en - Input Voltage Noise Density	40 nV/√Hz
Series	LM358
Packaging	Tube
Amplifier Type	High Gain Amplifier
Brand	Texas Instruments
Dual Supply Voltage	+/-3 V, +/-5 V, +/-9 V
Features	Standard Amps
Height	4.57 mm
Input Type	Rail-to-Rail
Length	9.81 mm
Maximum Dual Supply Voltage	+/-16 V
Minimum Dual Supply Voltage	+/-1.5 V
Operating Supply Voltage	3 V to +/-32 V, +/-1.5 V, +/- 16 V

Circuit Applications

The LM358P operational amplifier offers diverse functionalities within sensor circuits focused on light and dark detection. Its capability to adaptively function in varied roles emphasizes its flexible nature in sensor-specific tasks. Gaining insight into its performance in these contexts enriches comprehension of wider circuit design methodologies.

Function in Dark Sensor

In configurations designed to detect darkness, the LM358P connects with the middle pin of a variable resistor attached to pin 2. This configuration subtly adjusts the circuit's responsiveness to low-light scenarios. By introducing a 20K resistor, this setup allows for precise adjustment of sensitivity levels, enabling the circuit to react solely to notable shifts in ambient light.

Comparator in Light Detection Circuits

In light detection circuits, the LM358P assumes the role of a comparator, serving to assess input voltage against a set reference point for evaluating light intensity. The use of a 20K resistor, as seen in the dark sensor application, contributes to setting sensitivity, providing an exact approach. This facilitates accurate responses to changes in lighting, as demonstrated by LED indicators connected to pin 1.

Equivalents

Within the dominion of operational amplifiers, the LM358 series serves as a basic component, acting as a sibling to the LM324 in numerous applications. It attracts attention for its adaptability and functionality. For those seeking to explore options with similar technical specifications, the LM158, LM258, LM2904, and LM2409 present themselves as viable considerations. The following sections dig deeper into these substitutes, shedding light on their roles and the exact benefits they offer in various scenarios.

Comparable Components

Equivalent Part	Manufacturer	Replacement Type
LM358PE4	Texas Instruments High-Performance Analog	Drop-In Replacement
LM358PE3	Texas Instruments High-Performance Analog	Drop-In Replacement
LM358PSRE4	Texas Instruments High-Performance Analog	Same Functionality
LM358PSRG4	Texas Instruments High-Performance Analog	Same Functionality
LM358PWRG4-JF	Texas Instruments High-Performance Analog	Same Functionality
LM358DR	Texas Instruments High-Performance Analog	Same Functionality
LM358DGKR	Texas Instruments High-Performance Analog	Same Functionality
LM358PWRG4	Texas Instruments High-Performance Analog	Same Functionality
LM358PWLE	Texas Instruments High-Performance Analog	Same Functionality
LM358PSLE	Texas Instruments High-Performance Analog	Same Functionality
LM358PWRG3	Texas Instruments High-Performance Analog	Same Functionality
LM358DG4	Texas Instruments High-Performance Analog	Same Functionality
LM358DGKRG4	Texas Instruments High-Performance Analog	Same Functionality
LM358PWG4	Texas Instruments High-Performance Analog	Same Functionality
LM358E4	Texas Instruments High-Performance Analog	Same Functionality
LM358DRG3	Texas Instruments High-Performance Analog	Same Functionality
LM358PSR	Texas Instruments High-Performance Analog	Same Functionality
LM358PWR	Texas Instruments High-Performance Analog	Same Functionality
LM358D	Texas Instruments High-Performance Analog	Same Functionality
LM358PWE4	Texas Instruments High-Performance Analog	Same Functionality
LM358DRG4	Texas Instruments High-Performance Analog	Same Functionality

Uses

The LM358P operational amplifier finds itself requisite across a multitude of fields, prized for its dual independent op-amps within a single package and its ability to consume minimal power. This blend of features presents an attractive option for adaptable and economical circuit designs.

Audio Preamplifiers

In the world of audio preamplifiers, the LM358P is tasked with elevating faint audio signals to levels primed for subsequent amplification. Its presence is favored in the engineering of audio devices, where its precision with audio signals is celebrated for contributing to high-fidelity sound production. The choice of LM358P often resonates with an appreciation for both reliability and cost-efficiency.

Small Signal Amplification

Facilitating the efficient boosting of small signals becomes serious in devices sensitive to electronic noise. The LM358P excels at strengthening low-amplitude signals while preserving their integrity and minimizing noise interference. These tasks demand an insightful grasp of both electronic noise dynamics and the subtleties inherent in signal processing.

General Op-Amp Circuits

When it comes to general operational amplifier circuits, the LM358P is a versatile contender. It performs multiple functions such as integration, summing, and differentiation, empowering you to craft sophisticated systems from streamlined designs. Such capabilities underscore operational efficiency, often steering the decision-making process in various applications.

Voltage Followers and Sensor Circuits

For applications in voltage followers and buffering, the LM358P is adept at stabilizing output voltage, ensuring a smooth signal path with minimal current draw. This performance becomes particularly beneficial in sensor circuits, where precision is pivotal for accurate sensor readings. In these contexts, a deep understanding of sensor specifics and accuracy requirements heavily influence the design and implementation of circuits.

Precision in Measurement Devices

Instruments like digital multimeters and oscilloscopes derive precision from the LM358P's contributions to measurement and data acquisition. With its high input and low output impedance, the op-amp is instrumental in enabling accurate measurements. This role renders it a basic component for analytical and diagnostic tools, often shaping advancements in measurement techniques and enhancing data precision.

Loop Control and Regulation

Skillfully managing loop control and regulation involves fine-tuning operational parameters, a domain well within the LM358P's strengths. Delivering reliable feedback and stabilization, it assures the smooth functioning of tightly regulated systems. Here, a thorough understanding of dynamic system behaviors and feedback mechanisms adds depth to its application.

Manufacturer

Located in Dallas, Texas, Texas Instruments (TI) is renowned for its prowess in the semiconductor industry, especially in the production of integrated circuits. TI's reputation as a leader in the analog chip and embedded processor markets reflects its strategic emphasis and unwavering commitment to these fields. Beyond its dominance in semiconductor technology, TI has made remarkable strides in digital light processing and offers a diverse spectrum of educational products, emphasizing its wide-ranging capabilities that drive technological evolution.

Analog chips play a dynamic role as they convert actual signals—like temperature, speed, and sound—into digital information. Embedded processors are major in managing the functionality of electronic devices. TI's achievements in these areas highlight their influence in ensuring the efficient operation of consumer electronics, automotive systems, and industrial machinery. This involvement calls for a deep comprehension of electronic principles and a genuine respect for cutting-edge engineering techniques. The subtle art of enhancing chip performance is implicitly acknowledged as a catalyst for notable leaps in technological efficiency.