ALD1732PAL

Overview

The ALD1732PAL is a precision low-power monolithic CMOS operational amplifier manufactured by Advanced Linear Devices. It features rail-to-rail input and output capabilities, allowing operation with supply voltages ranging from ±2V to ±5V (single supply +4V to +10V). The device exhibits extremely low input bias current of 0.01pA and input offset voltage of 30µV at 25°C, resulting in minimal input signal power draw. Key electrical parameters include a bandwidth of 1.5MHz, slew rate of 2.1V/µs, and supply current of 0.8mA. It operates within a temperature range of 0°C to +70°C and is housed in an 8-pin Plastic DIP package.

Feature Summary

• Extremely low input signal power requirements due to ultra-low input bias current and offset voltage
• Rail-to-rail large signal input and output voltage ranges for maximum dynamic range
• Robust design suitable for high-temperature operation and rugged environments
• Industry standard pinout compatible with µA741 and ICL7611 configurations

Applications

• Precision cable driver circuits
• Sensor interface and transducer biasing circuits
• Unity gain buffer amplifiers
• Capacitive and charge integration circuits
• Biochemical probe interfaces

Procurement Notes

Verify the specific suffix 'PAL' corresponds to the 8-pin Plastic DIP package and the commercial temperature range of 0°C to +70°C. Confirm RoHS compliance status as indicated by the 'L' suffix in the ordering information. Ensure static control procedures are followed during handling due to ESD sensitivity. Cross-reference the manufacturer part number ALD1732PAL with the distributor catalog to confirm availability and exact packaging specifications.

Selection Notes

Select this component when designing circuits that require minimal source loading effects and high signal integrity from high-impedance sources. It is suitable for single-supply +5V systems or dual-supply ±2V to ±5V applications. Consider its rail-to-rail capability for low-voltage analog serial stages. Verify that the 1.5MHz bandwidth and 2.1V/µs slew rate meet the signal frequency requirements. Ensure the operating environment stays within the specified 0°C to +70°C range for the PAL package variant.

Part Context

The ALD1732 series includes variants such as ALD1732A for extended temperature ranges and different package options like SOIC and CERDIP. The ALD1732PAL specifically denotes the Plastic DIP package version intended for commercial temperature operations. This family utilizes enhanced EPAD silicon gate CMOS process technology to achieve low power dissipation and high precision characteristics suitable for portable instruments and precision analog applications.

Replacement Considerations

The datasheet indicates compatibility with industry standard µA741 and ICL7611 pin configurations. Users should verify functional equivalence regarding rail-to-rail performance and input bias currents when substituting with these legacy parts.