ALD1732SAL

Overview

The ALD1732SAL is a precision low-power monolithic CMOS operational amplifier manufactured using the EPAD® silicon gate process. It features rail-to-rail input and output capabilities, allowing operation with supply voltages from ±2V to ±5V (dual) or +4V to +10V (single). Key electrical parameters include a typical input offset voltage of 80µV, an input bias current of 0.01pA, a bandwidth of 1.5MHz, and a slew rate of 2.1V/µs at ±2.5V supplies. The device operates within a temperature range of 0°C to +70°C and is housed in an 8-SOIC package.

Feature Summary

• Extremely low input signal power resulting from minimal input offset voltage and bias current
• Rail-to-rail large signal input and output voltage ranges for low overhead operation
• 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 circuits
• Unity gain buffer amplifiers
• Capacitive and charge integration circuits
• Biochemical probe interfaces

Procurement Notes

Verify that the specific part number suffix corresponds to the required operating temperature range and package type. Confirm RoHS compliance status if leaded versions are not acceptable for the intended assembly process. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select this component when extremely low source loading and high input impedance are critical for signal integrity. It is suitable for applications requiring rail-to-rail performance on low single-supply systems. Consider the ALD1732A variant if tighter input offset voltage specifications are required compared to the standard ALD1732.

Part Context

This device belongs to the ALD1732 family of precision operational amplifiers designed by Advanced Linear Devices. It utilizes enhanced EPAD® technology to achieve superior input characteristics. The family includes variants such as the ALD1732A for higher precision and different package options like PAL and DA for various thermal and mechanical requirements.

Replacement Considerations

The datasheet notes compatibility with industry standard µA741 and ICL7611 pin configurations. Verify functional equivalence regarding input bias current and offset voltage before substituting legacy bipolar op-amps.