ALD2732SAL

Overview

The ALD2732SAL is a precision dual low-power monolithic CMOS operational amplifier manufactured by Advanced Linear Devices, Inc. It features an extremely low input signal power of 0.0003 fW at 25°C, derived from a typical input offset voltage of 0.03 mV and input bias current of 0.01 pA. The device operates on single supplies up to 10V or dual supplies up to ±5V, with a bandwidth of 1.5 MHz and a slew rate of 2.1 V/µs. It supports rail-to-rail input and output voltages, tolerates over-voltage spikes of 300mV beyond supply rails, and drives capacitive loads up to 400pF in unity gain mode. The component is housed in an 8-pin Small Outline Plastic DIP (SOIC) package.

Feature Summary

• Extremely low input signal power draw virtually eliminates source loading effects
• Rail-to-rail input and output voltage ranges reduce required supply overhead
• Robust design suitable for temperature-extreme environments and rugged conditions
• Industry standard pinout compatible with traditional µA741 and ICL7611 configurations

Applications

• Sensor interface circuits
• Precision analog cable driver
• Biochemical probe interface
• High source impedance electrode amplifiers
• Precision Sample and Hold amplifiers

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic DIP package and the commercial operating temperature range of 0°C to +70°C. Confirm lead-free (RoHS) compliance status as indicated by the 'L' suffix designation. Ensure static control procedures are utilized during handling due to ESD sensitivity. Cross-reference the manufacturer's ordering information to validate availability against the specified package type.

Selection Notes

Select this component for applications requiring minimal input signal power and high accuracy with high-impedance sources. The rail-to-rail capability allows operation in low-power supply environments where supply overhead must be minimized. It is suitable for mixed digital-analog systems sharing a common power supply. Consider the 1.5 MHz bandwidth and 2.1 V/µs slew rate for moderate-speed signal conditioning tasks.

Part Context

This device belongs to the ALD2732A/ALD2732 family of precision dual low-power CMOS operational amplifiers. The family utilizes an enhanced EPAD silicon gate CMOS process to achieve superior input characteristics compared to conventional designs. Variants include different packages such as CERDIP and Plastic DIP, catering to various thermal and mechanical requirements within the same electrical specification framework.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.