ALD2732PAL

Overview

The ALD2732PAL is a precision dual 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 from ±2V to ±5V (single supply +4V to +10V). Key electrical characteristics include a typical bandwidth of 1.5MHz, a slew rate of 2.1V/µs, and an extremely low input bias current of 0.01pA at room temperature. The device operates within a commercial 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 resulting from minimal offset voltage and bias current
• Rail-to-rail large signal input and output voltage ranges
• Robust high-temperature operation suitable for rugged environments
• Industry standard pinout compatible with µA741 and ICL7611 configurations

Applications

• Precision cable driver circuits
• Sensor interface and transducer biasing
• 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 0°C to +70°C operating temperature range. Confirm that the lead-free (RoHS) designation matches project requirements. Ensure the component source is verified against official manufacturer documentation to guarantee authenticity and correct revision level.

Selection Notes

Select this component when designing circuits requiring high precision with minimal source loading effects. It is ideal for applications involving capacitive or high-impedance signal sources where input bias current errors must be negligible. Consider its rail-to-rail capability for low-voltage single-supply systems and its ability to drive significant capacitive loads without external compensation.

Part Context

This part belongs to the ALD2732 family of precision dual operational amplifiers. The 'PAL' suffix specifically identifies the 8-pin Plastic DIP package variant intended for through-hole mounting. Other variants in the series include SOIC and CERDIP packages with different temperature ratings, such as the ALD2732ADA for extended industrial temperatures.

Replacement Considerations

The datasheet notes compatibility with industry standard µA741 and ICL7611 pin configurations. Verify functional equivalence regarding pinouts and electrical specifications before substituting with generic op-amps, as the ALD2732's ultra-low bias current is unique.