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LM358AM

Dual general-purpose op-amp, 3-32V single supply, 1.1MHz GBW, SOIC-8

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Manufacturer Part：

LM358AM

Package：

SOIC-8 (M) (4.9 x 3.9 x 1.58 mm)

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Description

Product Overview

The LM358AM from Texas Instruments is a dual general-purpose operational amplifier featuring low power consumption, wide supply voltage range, and unity-gain compensation. It consists of two independent, high-gain, internally frequency-compensated op-amps designed to operate from a single supply over a range of 3V to 32V (or split supplies of +/-1.5V to +/-16V). The ‘M’ suffix indicates the SOIC-8 surface-mount package, suitable for automated PCB assembly.

Key Specifications

Supply Voltage Range 3V to 32V (single), +/-1.5V to +/-16V (dual)
Number of Channels 2 (dual)
Gain-Bandwidth Product 1.1MHz
Slew Rate 0.5V/us typical
Input Offset Voltage 2mV typical, 7mV max
Input Bias Current 45nA typical
Output Current 20mA typical (source/sink)
Supply Current 0.7mA typical (both amplifiers)
Operating Temperature -40 to 85°C
Package SOIC-8 (M suffix)

Features

  • Single-supply operation: 3V to 32V
  • Internally frequency compensated for unity-gain stability
  • Low input bias current: 45nA typical
  • Large output voltage swing: 0V to VCC-1.5V
  • Low supply current drain: 0.7mA for both amplifiers
  • Common-mode input range includes ground (single-supply operation)
  • ESD protection on all pins

Applications

  • Signal conditioning and amplification
  • Active filters and integrators
  • Voltage followers and buffers
  • Comparator and oscillator circuits
  • Power supply bias and reference circuits

The LM358AM from Texas Instruments is one of the most widely used dual operational amplifiers in the electronics industry. As a member of the LM358 family, it provides two independent, high-gain, internally compensated op-amps in a single SOIC-8 package. Its key advantage is single-supply operation from 3V to 32V, with the common-mode input range including ground, eliminating the need for a negative supply in many applications. The low supply current of 0.7mA for both amplifiers makes it ideal for battery-powered and low-power designs. The internal compensation ensures stability without external components in unity-gain configurations.

The LM358AM uses a classic two-stage op-amp architecture with an input differential pair, gain stage, and output buffer. The input stage uses PNP transistors in a differential configuration, allowing the common-mode input range to extend down to ground (0V) in single-supply operation. The gain stage provides the high open-loop gain (approximately 100dB), while the internal compensation capacitor ensures stability with 100% feedback (unity gain). The output stage uses a class AB push-pull configuration that can both source and sink current, though the sinking capability is limited compared to sourcing. The output can swing to within approximately 1.5V of the positive supply rail and to ground in single-supply operation, making it suitable for DC-coupled applications.

Pin Name Type Function
1 1OUT Output Amplifier 1 output
2 1IN- Input Amplifier 1 inverting input
3 1IN+ Input Amplifier 1 non-inverting input
4 GND / V- Power Ground or negative supply
5 2IN+ Input Amplifier 2 non-inverting input
6 2IN- Input Amplifier 2 inverting input
7 2OUT Output Amplifier 2 output
8 V+ Power Positive supply (3-32V)
  • Single-supply signal conditioning for sensors (thermistors, photodiodes, strain gauges)
  • Active low-pass, high-pass, and band-pass filter circuits
  • DC bias and reference voltage generation in power supply circuits
  • Window comparator and level detection circuits
  • Audio preamplifier and line driver in consumer electronics
Manufacturer Part Number Package Notes
TI LM358AP DIP-8 Through-hole version, same specs
TI LMV358IDGKR VSSOP-8 Low voltage (2.7-5.5V), rail-to-rail output
Microchip MCP6002-I/SN SOIC-8 1.8-6V, rail-to-rail, low power
ST LM358DT SOIC-8 Pin-compatible equivalent
ON Semi LM358DR2G SOIC-8 AEC-Q100 qualified automotive version
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Contact Information

Email: info@materialparts.com

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Service & Packaging

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Contact Information

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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