AP358NG-U

Overview

The AP358NG-U is a low power dual operational amplifier manufactured by Diodes Incorporated. It features two independent, internally frequency compensated amplifiers designed for single supply operation over a wide voltage range of 3V to 32V, or dual supplies of ±1.5V to ±16V. The device offers a large DC voltage gain of 100 dB and a unity-gain bandwidth of 1 MHz. Key electrical characteristics include a maximum input offset voltage of 7 mV, an input bias current of 250 nA, and a typical supply current drain of 500 μA at 5V. The output can swing from ground to V+ minus 1.5V, making it suitable for direct sensing near ground potential.

Feature Summary

• Internally frequency compensated for stable unity gain operation
• Input common-mode voltage range includes ground for single-supply compatibility
• Low supply current drain essentially independent of supply voltage magnitude
• Differential input voltage range equal to the full power supply voltage

Applications

• Transducer amplifiers
• DC gain blocks
• Battery-operated systems requiring low power drain
• Direct interface electronics in digital systems using standard +5V supplies

Procurement Notes

Verify that the ordering suffix 'U' corresponds to the tube packaging format as specified in the manufacturer's ordering information. Confirm the package type matches the required PDIP-8L footprint. Ensure compliance with RoHS directives and lead-free finish requirements applicable to your manufacturing process. Check for any specific environmental or handling precautions outlined in the datasheet regarding moisture sensitivity.

Selection Notes

Select this component when designing circuits that require true-differential inputs and linear mode operation with an input common-mode voltage of 0 V DC. It is appropriate for applications needing a wide input common-mode range that includes ground without requiring additional input biasing networks. Consider its low power consumption for battery-powered designs and its ability to operate directly from standard digital system voltages like +5V.

Part Context

The AP358 series consists of two independent, high-gain operational amplifiers internally frequency compensated for general-purpose use. Designed specifically for single power supply operation, they eliminate the need for dual supplies in many conventional op amp circuits. The series allows for easy implementation in single-supply systems while maintaining performance characteristics across a wide temperature range.

Replacement Considerations

AP358NL-U

FAQ

Can the AP358NG-U operate with an input signal at ground potential?

Yes, the input common-mode voltage range includes ground, allowing the amplifier to remain in linear mode even when the input signal is at 0 V DC.

What is the maximum differential input voltage the device can withstand?

The differential input voltage range is equal to the power supply voltage, meaning it can accommodate large differential input voltages without damage, provided the individual input pins do not go negative more than -0.3 V DC.