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Slkor LM358S Operational Amplifier: 32V Power Supply Dual‑Channel SOP‑8 General‑Purpose Operational Amplifier

2026-10-23 27
LM358S is a dual-channel general-purpose operational amplifier released by Slkor. The device integrates internal frequency compensation circuitry and supports both single-supply and split-supply operation modes. It features low power consumption and is suitable for battery-powered products. With a wide input common-mode voltage range that can accept ground-level signals, the component is available in two package variants and fits general op-amp applications such as signal conditioning and DC gain amplification. This document sorts out its parameters, features, applications and key engineering notes based on the device datasheet.

Slkor LM358S Operational Amplifier Product Image

1. Core Product Parameters

  1. Power supply parameters: Single supply voltage ranges from 3V to 32V; split supply voltage ranges from ±1.5V to ±16V. Recommended operating ambient temperature ranges from 0℃ to 70℃.
  2. Gain parameters: Typical DC open-loop voltage gain is 100dB.
  3. Input parameters: Maximum input offset voltage is 9.0mV; maximum input offset current is 150nA; maximum input bias current is 500nA. Input common-mode voltage covers ground potential.
  4. Output parameters: Output voltage swing ranges from 0V DC to VCC-1.5V DC. Continuous output short-circuit tolerance is supported. Both output sink current and source current offer milliampere-level driving capacity.
  5. Package types: LM358D for DIP-8 package, LM358S for SOP-8 package.
  6. Absolute maximum ratings: Maximum junction temperature is 150℃; storage temperature ranges from -55℃ to +125℃; maximum input current per pin is 50mA.

2. Core Product Features

  1. Internal unity-gain frequency compensation is integrated, so stable operation can be achieved without external compensation components.
  2. Dual independent op-amp channels work without mutual interference, delivering good channel separation performance.
  3. High power-supply adaptability for both single-supply and split-supply operation. Low supply current consumption with slight variation against supply voltage makes it well-suited for battery-powered equipment.
  4. The input common-mode voltage range includes ground potential, enabling processing of ground-referenced input signals under single-supply conditions.
  5. Differential input voltage can reach the level of supply voltage, offering favorable input withstand capability.
  6. Low input offset voltage and input offset current reduce offset errors for DC signal amplification.
  7. Output short-circuit protection is implemented. The output pin can sustain continuous short-to-ground conditions.

3. Main Application Fields

  1. Amplification circuits for signals from various transducers, to amplify weak sensor output signals for signal conditioning.
  2. DC gain block circuits for level shifting and amplification of DC signals.
  3. Battery-powered portable electronic devices, where low power consumption helps extend battery service life.
  4. Analog interface circuits for digital systems. It can operate directly with 5V DC power without extra high-voltage power supplies.
  5. General-purpose op-amp circuits including voltage followers, comparison circuits, signal filtering and other conventional analog circuits.

4. Engineering Design Recommendations

  1. Although protection circuits against static voltage and electric field are built-in, voltages exceeding absolute maximum ratings shall not be applied to input, output and power-supply pins to avoid device damage.
  2. During normal operation, input voltage and output voltage shall be limited between ground potential and supply voltage.
  3. Input pins of unused op-amp channels shall be tied to proper voltage levels, either GND or VCC. Unused output pins shall be left open.
  4. Power derating is required for plastic packages. For DIP-8 package, power shall be reduced by 10mW per 1℃ temperature rise from 65℃ to 125℃. For SOP-8 package, power shall be reduced by 7mW per 1℃ temperature rise from 65℃ to 125℃.
  5. Extra input current will occur when input pin voltage is driven below -0.3V. Such operating conditions shall be avoided in design.
  6. Keep device operating temperature within the recommended 0-70℃ range to guarantee performance conforms to datasheet specifications.

5. Product Summary

LM358S is a general-purpose dual-channel operational amplifier with wide supply voltage range and single-supply support for battery-powered scenarios. Its input accepts ground-level signals and internal frequency compensation is integrated. It is offered in DIP-8 and SOP-8 packages. Featuring stable performance and broad applicability, it serves as a common component for analog signal conditioning. Voltage, temperature and unused-pin design constraints shall be followed in engineering practice to ensure reliable device operation.

About Slkor:

Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories.

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