LM358 High Gain Operational Amplifier DIP-8

LM358 High-Gain Dual Operational Amplifier (DIP-8) delivers reliable low-power amplification for single-supply and dual-supply designs. Designers use it in signal conditioning, filters, comparators, and general-purpose analog front-ends that require wide input range and stable low-frequency gain.

Key Features:

• Dual High-Gain Amplifiers: Two independent op-amps in a single DIP-8 package for compact designs.
• Single-Supply Operation: Operates from a single +3 V to +32 V supply (or ±1.5 V to ±16 V dual supplies).
• Input Common-Mode to Ground: Inputs accept signals at ground on single-supply systems improving low-voltage performance.
• Low Power Consumption: Typical quiescent current ~500 µA per amplifier for battery-powered designs.
• Rail-Adjacent Output: Outputs swing close to ground, easing interfacing with logic and ADCs.
• Stable for Single-Ended and Differential Circuits: Works reliably in filters, integrators, and comparator-like tasks.

Technical Specifications:

• Supply Voltage (V_CC): +3 V to +32 V single supply (or ±1.5 V to ±16 V dual supplies)
• Input Offset Voltage (V_OS): Typical ~2 mV
• Input Bias Current: Typical ~20 nA
• Open-Loop Gain (A_OL): ~100 dB (typical)
• Gain-Bandwidth Product: ≈ 1 MHz
• Slew Rate: ~0.3 V/µs
• Output Short-Circuit Current: ±20 mA (limit varies by manufacturer)
• Operating Temperature Range: −40 °C to +85 °C (industrial grades may specify −40 °C to +125 °C)
• Noise and Distortion: Low frequency noise suited to general-purpose analog use; verify datasheet for precision audio requirements

Mechanical Specifications:

• Package Type: DIP-8 through-hole dual inline package for prototyping and socketed use
• Lead Finish: Tin or tin-lead plated leads for standard soldering
• Body Material: Molded epoxy resin typical of DIP packages
• Mounting: PCB through-hole; compatible with 0.3″ (7.62 mm) socket spacing

Dimensions:

• Typical DIP-8 Body: Body length ~9.8 mm, body width ~6.4 mm (verify supplier mechanical drawing for exact values)
• Pin Pitch: 2.54 mm (0.1″) standard DIP spacing
• Overall Height and Lead Length: Varies by manufacturer; consult datasheet mechanical drawing for board layout and keepout

Pinout and Wiring:

• Pin 1: Output A
• Pin 2: Inverting Input A (−)
• Pin 3: Non-inverting Input A (+)
• Pin 4: V_EE or V₋ (Negative supply or GND for single-supply)
• Pin 5: Non-inverting Input B (+)
• Pin 6: Inverting Input B (−)
• Pin 7: Output B
• Pin 8: V_CC or V₊ (Positive supply)
• You wire power to Pin 8 (V₊) and Pin 4 (V₋/GND). Route decoupling capacitors close to the supply pins. Add input protection and output load limits for demanding applications.

Datasheet Reference:

• Download the LM358 datasheet from major manufacturers (Texas Instruments, STMicroelectronics, ON Semiconductor) to view detailed electrical tables, thermal data, application circuits, and PCB footprints.

Applications:

• Signal Conditioning: Use in amplifiers, active filters, and sensor interfaces.
• Comparator and Threshold Circuits: Implement level detection and window comparators when precision is not critical.
• Audio Preamp and Tone Control: Employ for low-frequency amplification and tone-shaping stages.
• Battery-Powered Systems: Integrate in low-power battery monitoring and control circuits.
• General-Purpose Analog: Use across consumer electronics, instrumentation, and educational projects.

Equivalent Models:

• UA358 / NJM358: Common drop-in equivalents with similar electrical characteristics.
• LM324: Quad op-amp family member if you need four amplifiers in one package.
• MC1458: Legacy dual op-amp with comparable use cases; verify input/output ranges before substituting.

Package Includes:

• 1 x LM358 Dual Operational Amplifier (DIP-8)