LM258P

Overview

The LM258P is a dual-channel, high-gain, frequency-compensated operational amplifier designed for single or split power supply operation. It features an input common-mode voltage range that includes ground, allowing direct sensing near the ground potential. Key electrical parameters include a typical low power supply current consumption of 0.7mA, a typical input offset voltage of 3mV, and a typical input offset current of 2nA. The device supports a differential input voltage range equal to the maximum rated power supply voltage and offers a typical open-loop differential voltage gain of 100dB.

Feature Summary

• Internal frequency compensation ensures stability without external components.
• Input common-mode voltage range includes ground for direct signal sensing.
• Low power supply current consumption suitable for battery-powered applications.

Applications

• Consumer electronics
• Sensor and instrumentation circuits
• Motor drive and control systems
• Test and measurement equipment

Procurement Notes

Verify the package type matches the design requirements, as the LM258 series includes both through-hole (PDIP) and surface-mount (SOIC/TSSOP) variants. Confirm the specific suffix indicates the correct pin count and physical dimensions. Check manufacturer documentation for RoHS compliance status and ensure the operating temperature range aligns with the application environment before finalizing procurement.

Selection Notes

Select the LM258P when a general-purpose dual op-amp with ground-referenced input capability is required. Consider this part for applications needing low static power consumption and single-supply operation. Verify that the 0.3V/µs slew rate and 700kHz gain-bandwidth product meet the signal processing speed requirements. Ensure the PDIP-8 package fits the PCB layout constraints compared to surface-mount alternatives.

Part Context

The LM258P belongs to the LM258 family of dual operational amplifiers manufactured by Texas Instruments. This series is widely recognized for its versatility in analog signal processing tasks. The 'P' suffix typically denotes the PDIP-8 through-hole package variant, distinguishing it from surface-mount versions like the LM258D or LM258N. It serves as a standard component in mixed-signal circuit designs.

Replacement Considerations

LM358P: Pin-compatible alternative with similar functionality but potentially different performance specifications regarding bandwidth and noise.

FAQ

Does the LM258P support rail-to-rail output?

No, the LM258P does not feature rail-to-rail output capabilities; it operates within a limited range relative to the supply rails.

What is the input common-mode voltage range?

The input common-mode voltage range includes ground, allowing the amplifier to sense signals down to the negative supply rail.