ALD1722EPA

Overview

The ALD1722EPA is a monolithic rail-to-rail precision CMOS operational amplifier featuring integrated user-programmable EPAD offset voltage adjustment. It provides a bandwidth of 1.5 MHz, a slew rate of 2.1 V/µs, and a supply current of 0.8 mA. The device supports ±2.0V to ±5.0V supplies with an input bias current of 0.01 pA typical. It accommodates up to 4000pF capacitive loading at unity gain and tolerates 300mV over-voltage spikes beyond the supply rails.

Feature Summary

• Features electrically programmable analog device (EPAD) technology for in-circuit or factory offset voltage trimming without external components.
• Provides rail-to-rail input and output voltage ranges with tolerance to input voltage spikes exceeding supply rails by 300mV.
• Delivers extremely low input bias currents of 0.01 pa typical while maintaining high open-loop voltage gain and stability under heavy capacitive loads.

Applications

• Sensor interface circuits
• High source impedance electrode amplifiers
• Precision sample and hold amplifiers
• Biochemical probe interfaces

Procurement Notes

Verify the specific suffix PA indicates the 8-pin Small Outline Plastic Dip package configuration. Confirm that the E variant includes full user-programmable offset voltage capabilities compared to standard variants. Ensure compatibility with the ALD E100 EPAD Programmer for in-system programming requirements.

Selection Notes

Select this component when system-level calibration is required to compensate for external component tolerances and environmental drift. It serves as a direct replacement for the ALD1702 but adds programmable offset trimming. Ideal for applications demanding simultaneous low power consumption and high precision without manual trimming procedures.

Part Context

This part belongs to the ALD1722 series of EPAD operational amplifiers manufactured by Advanced Linear Devices. The series utilizes proprietary CMOS technology to integrate programmable FETs for precise electrical trimming. The PA suffix specifically denotes the 8-pin SOIC plastic package option within this family.

Replacement Considerations

ALD1702