ALD2724SBL

Overview

The ALD2724SBL is a dual precision CMOS operational amplifier featuring rail-to-rail input and output voltage ranges. It utilizes EPAD technology for user-programmable offset-voltage trimming, allowing in-system calibration to minimize errors from PSRR, CMRR, and temperature drift. The device operates on supply voltages ranging from ±3.25V to ±5V (6.5V to 10V single supply) with a typical supply current of 6.5mA. Key electrical characteristics include a gain-bandwidth product of 2.1MHz, a slew rate of 5V/μs, an initial input offset voltage of up to 150μV, and an input bias current of 10pA at 25°C.

Feature Summary

• EPAD-based user programmable offset voltage trimming capability
• Rail-to-rail input and output voltage swing
• High slew rate of 5V/μs for fast signal response
• Low input bias current suitable for high source impedance applications

Applications

• Sensor interface circuits
• Transducer biasing circuits
• Capacitive and charge integration circuits
• Biochemical probe interfaces
• Precision sample and hold amplifiers

Procurement Notes

Verify the specific suffix 'SBL' against the manufacturer's official ordering information to confirm package type and temperature range. Ensure compatibility with standard EPAD programmers if in-system programming is required. Confirm that the SOIC-14 package dimensions match the PCB footprint requirements. Check RoHS compliance status as indicated in the datasheet specifications.

Selection Notes

Select this component when low voltage operation and rail-to-rail performance are required. The EPAD feature is essential for applications needing system-level calibration to compensate for accumulated offset errors. Consider the 2.1MHz bandwidth and 5V/μs slew rate for moderate-speed signal conditioning tasks. Verify that the 10pA input bias current meets the requirements for high-impedance sensor sources.

Part Context

The ALD2724 series serves as an alternative to JFET input operational amplifiers in low-voltage applications. It belongs to the EPAD family, which integrates electrically programmable analog devices for precise offset adjustment. The SBL variant specifically denotes the SOIC-14 surface-mount package within the broader ALD2724E/ALD2724 lineup designed for precision analog signal processing.

Replacement Considerations

Direct substitutes include other parts from the ALD2724 family such as ALD2724ESB or ALD2724EPB, depending on the required package style. Cross-referencing with generic dual op-amps requires verifying rail-to-rail capabilities and EPAD pinout compatibility if trimming functionality is needed.