ALD1721PAL

Overview

The ALD1721PAL is a monolithic CMOS micropower operational amplifier featuring rail-to-rail input and output capabilities. It offers an input offset voltage of 0.05 mV typical and input bias current of 0.01 pA typical, resulting in extremely low input signal power. The device operates on single supplies from +2V to +10V or dual supplies from ±1V to ±5V. Key electrical parameters include a unity gain bandwidth of 0.7 MHz, a slew rate of 0.7 V/µs, and a supply current of 110 µA typical at ±2.5V. It is housed in an 8-pin PDIP package.

Feature Summary

• Extremely low input signal power draw with minimal source loading effects
• Rail-to-rail large signal input and output voltage ranges
• High open-loop voltage gain with internal compensation for unity gain stability
• Robust high-temperature operation suitable for rugged environments

Applications

• Photodiode amplifiers
• Picoammeters
• Charge integrators
• Data acquisition systems
• Active filters

Procurement Notes

Verify the specific suffix 'PAL' corresponds to the 8-pin Plastic DIP package and lead-free (RoHS) compliance as defined in the ordering information. Confirm that the operating temperature range aligns with the standard commercial grade specifications provided in the datasheet before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring ultra-low input bias currents and high input impedance to prevent signal distortion from high-impedance sources. It is appropriate for battery-operated systems due to its micropower dissipation characteristics and compatibility with low-voltage single-supply architectures.

Part Context

This part belongs to the ALD1721 series of precision micro-power CMOS operational amplifiers manufactured by Advanced Linear Devices. The series includes variants such as the ALD1721SAL and ALD1721DA, offering different package options like SOIC and CERDIP while maintaining identical electrical performance specifications across the family.

Replacement Considerations

No direct substitute part numbers are documented in the provided source material.