LM358

Dual General-Purpose Operational Amplifier

1. Basic Product Information

Manufacturer: Texas Instruments (original developer), multiple licensed manufacturers including ON Semiconductor, STMicroelectronics, and NXP Semiconductors

Device Type: Dual Bipolar Junction Transistor (BJT) Operational Amplifier

Model Explanation: ‘LM’ denotes the Linear Monolithic product family; ‘358’ is the assigned part number for the dual-channel variant of the industry-standard low-power op-amp series (sibling to the single-channel LM324 and quad-channel LM324)

Compliance & Grade: Standard commercial grade variants are RoHS, REACH, and Pb-free compliant; industrial-grade variants operate across -40°C to 125°C, and automotive-grade AEC-Q100 qualified variants are available for under-hood and infotainment applications

2. Core Electrical Parameters

Parameter	Symbol	Min	Typical	Max	Unit
Single Supply Voltage Range	VCC	3	–	32	V
Dual Supply Voltage Range	±VCC	±1.5	–	±16	V
Quiescent Current per Amplifier	IQ	–	0.5	1.0	mA
Input Offset Voltage	VOS	–	2	7	mV
Input Bias Current	IB	–	20	100	nA
Common-Mode Input Voltage Range	VCM	-0.3	–	VCC – 1.5	V
Unity-Gain Bandwidth	GBW	–	1	–	MHz
Slew Rate	SR	–	0.3	–	V/µs
Open-Loop Voltage Gain	AOL	25	100	–	V/mV
Output Short-Circuit Current	ISC	–	40	–	mA
Operating Temperature Range (Commercial)	TOP	0	–	70	°C

3. Core Functions & Advantages

The LM358 integrates two independent, high-gain, internally frequency-compensated operational amplifiers designed to operate from a single power supply across a wide voltage range, with optional dual-supply operation available. Key advantages include:

• True single-supply functionality with input common-mode range extending down to 0V, eliminating the need for negative bias supplies in low-voltage designs
• Extremely low quiescent current, suitable for battery-powered and energy-constrained applications
• Internal frequency compensation ensures stable operation without external compensation components, reducing bill of materials (BOM) cost
• High output drive capability capable of sourcing/sinking up to 40mA, compatible with a wide range of output loads including LEDs, small relays, and transducers
• Industry-standard pinout and footprint, enabling drop-in replacement across multiple manufacturers and end-of-life mitigation for legacy designs

4. Typical Application Scenarios

• Low-frequency signal conditioning: Precision amplification of sensor outputs from temperature, pressure, and photoelectric sensors in industrial and consumer systems
• Active filter design: Low-pass, high-pass, and band-pass filters for audio processing, biomedical signal acquisition, and power supply noise rejection
• Battery voltage monitoring: Threshold detectors and voltage followers for charge level indication in portable electronics, power banks, and electric vehicle auxiliary systems
• Comparator circuits: Over-voltage/over-current protection triggers in power adapters, motor drives, and industrial control modules
• Audio pre-amplification: Input stage amplification for small speakers, intercom systems, and low-power audio playback devices
• Current sensing: Differential amplifiers for shunt resistor current measurement in battery management systems (BMS) and motor control circuits
• Reference voltage buffering: Isolation of precision voltage references from load transients in data acquisition and test measurement equipment

5. Market Pricing

Reference pricing (USD, 2024 global average across major distributors):

• Through-hole DIP-8 package: $0.08 – $0.15 per unit for 1k+ quantities, $0.25 – $0.40 per unit for sample quantities (1-9 units)
• Surface-mount SOIC-8 package: $0.07 – $0.12 per unit for 1k+ quantities, $0.20 – $0.35 per unit for sample quantities
• Automotive AEC-Q100 qualified variants (SOIC-8): $0.25 – $0.40 per unit for 1k+ quantities
• Industrial grade variants (-40°C to 125°C): $0.12 – $0.22 per unit for 1k+ quantities

6. Supplementary Model Variants

• LM358A: Precision variant with lower input offset voltage (max 3mV) and tighter electrical parameter tolerances for high-accuracy applications
• LM358N: Standard commercial-grade DIP-8 package variant, the most widely used through-hole form factor for prototyping and low-volume production
• LM358DR: Standard commercial-grade SOIC-8 surface-mount variant optimized for high-volume automated PCB assembly
• LM358PWR: Ultra-small TSSOP-8 package variant for space-constrained designs such as wearables and compact IoT modules
• LM358QDRQ1: Automotive AEC-Q100 Grade 1 qualified variant with operating temperature range of -40°C to 125°C, suitable for under-hood and infotainment systems
• LM358I: Industrial-grade variant with extended operating temperature range of -40°C to 125°C, designed for harsh industrial environments
• LMV358: Low-voltage CMOS variant operating down to 2.1V supply, with lower quiescent current for battery-powered portable applications