ALD2732ASAL

Overview

The ALD2732ASAL is a precision dual low-power CMOS operational amplifier manufactured by Advanced Linear Devices Inc. It features an extremely low input signal power of 0.0003 fW, resulting from a typical input offset voltage of 25 µV and input bias current of 0.01 pA at 25°C. The device operates on single supplies from +4.0 V to +10.0 V or dual supplies from ±2.0 V to ±5.0 V. Key electrical characteristics include a bandwidth of 1.5 MHz, a slew rate of 2.1 V/µs, and a supply current of 3.5 mA. It supports rail-to-rail input and output voltages and can drive capacitive loads up to 4000 pF at a gain of 5.

Feature Summary

• Extremely low input signal power draw minimizes source loading effects and preserves signal integrity for high-impedance sources.
• Rail-to-rail input and output voltage ranges allow operation with minimal supply overhead in low-voltage environments.
• Robust design ensures stable performance in temperature-extreme environments without requiring external compensation components.
• Capable of driving large capacitive loads while maintaining stability in unity gain configurations.

Applications

• Precision cable driver circuits
• Sensor interface circuits
• Unity gain buffer amplifiers
• Biochemical probe interfaces
• High source impedance electrode amplifiers

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic Dip (SOIC) package with an operating temperature range of 0°C to +70°C. Confirm that the component meets lead-free (RoHS) requirements as indicated by the 'L' suffix. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select this component for applications requiring ultra-low input bias currents and minimal input signal power to prevent distortion in high-impedance sensor networks. It is suitable for portable instruments and systems operating on single or dual low-voltage supplies where rail-to-rail swing is necessary. Consider the 0°C to +70°C industrial temperature range for standard environmental conditions.

Part Context

The ALD2732ASAL belongs to the ALD2732A/ALD2732 family of precision dual low-power CMOS operational amplifiers. This series utilizes an enhanced EPAD silicon gate CMOS process to achieve industry-standard pin configurations compatible with µA741 and ICL7611 footprints. The family includes variants such as the ALD2732ADA for extended temperature ranges.

Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.