ALD1726SAL

Overview

The ALD1726SAL is a monolithic precision CMOS ultra micropower operational amplifier designed for ±1V to ±5V dual or +2V to +10V single supply systems. It features rail-to-rail input and output voltage ranges, allowing signal voltages to approach the supply rails. The device offers a unity gain bandwidth of 400 kHz, a slew rate of 0.17 V/µs, and a typical input bias current of 0.01 pA. On-chip offset voltage trimming eliminates the need for external nulling in most applications. It operates within a temperature range of 0°C to +70°C and is housed in an 8-pin SOIC package.

Feature Summary

• Rail-to-rail input and output voltage capability
• Extremely low input bias current of 0.01 pA typical
• On-chip offset voltage trimming
• Unity gain stable without external frequency compensation

Applications

• Voltage amplifier
• Photodiode amplifier
• Charge integrator
• Picoammeter
• Precision sample and hold amplifiers

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin plastic SOIC package with lead-free (RoHS) compliance. Confirm the operating temperature range requirement matches the 0°C to +70°C specification for this package variant. Ensure design accounts for the internal switching point of the complementary input stages when used as a unity gain buffer.

Selection Notes

Select this component for high-impedance sensor interfaces requiring minimal power dissipation and low input leakage. The rail-to-rail performance makes it suitable for low-voltage battery-operated portable instruments. Consider the 400 kHz bandwidth and 0.17 V/µs slew rate for moderate-speed signal conditioning tasks where micropower operation is critical.

Part Context

The ALD1726 series includes variants such as the ALD1726G (general purpose), ALD1726PAL (plastic DIP), and ALD1726DA (CERDIP). The ALD1726SAL specifically denotes the surface-mount SOIC package version. All devices share the same core architecture but differ in packaging and potentially screening levels for temperature extremes.

Replacement Considerations

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