ALD1726PAL

Overview

The ALD1726PAL is a monolithic precision CMOS ultra-micropower operational amplifier in an 8-pin Plastic DIP package. It operates on dual supplies of ±1V to ±5V or single supplies of +2V to +10V. Key electrical parameters include a maximum supply current of 40μA at 5V, a unity gain bandwidth of 400kHz, and a slew rate of 0.17V/µs. The device features rail-to-rail input and output voltage ranges, an input bias current as low as 0.01pA, and an open-loop voltage gain of 100V/mV. It supports loads up to 20kΩ resistive and 25pF capacitive.

Feature Summary

• Rail-to-rail input and output voltage capability for full signal swing near supply rails
• Extremely low input bias current suitable for high source impedance applications
• Internally compensated for unity gain stability without external components
• Robust operation with tolerance to over-voltage input spikes beyond supply rails

Applications

• Photodiode amplifiers
• Charge integrators
• Picoammeters
• Precision sample and hold circuits
• Biochemical probe interfaces

Procurement Notes

Verify the specific PAL suffix indicates the 8-pin Plastic DIP package variant. Confirm RoHS compliance status if lead-free requirements are mandatory. Check for availability of the G version (ALD1726GPAL) which offers tighter offset voltage specifications compared to the standard ALD1726 series.

Selection Notes

Select this component for battery-operated systems requiring minimal power consumption while maintaining precision. Ensure the application does not require high-speed slew rates exceeding 0.17V/µs. Verify that the source impedance remains within limits compatible with the pA-level input bias currents to prevent noise pickup issues.

Part Context

This part belongs to the ALD1726 family of micropower CMOS operational amplifiers manufactured by Advanced Linear Devices. The PAL designation specifically identifies the 8-pin Plastic DIP package option, distinct from the SOIC (SAL) or CERDIP (DA) packages available in the same product line.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation.