ALD1732ASAL

Overview

The ALD1732ASAL is a precision low-power monolithic CMOS operational amplifier from Advanced Linear Devices. It features rail-to-rail input and output capabilities, allowing operation with supply voltages ranging from ±2V to ±5V (dual) or 4V to 10V (single). The device offers an extremely low input bias current of 0.01 pA and an input offset voltage of 30 µV at 25°C. Key electrical parameters include a bandwidth of 1.5 MHz, a slew rate of 2.1 V/µs, and a supply current of 0.8 mA. It operates within a temperature range of 0°C to +70°C and is housed in an 8-pin SOIC package.

Feature Summary

• Extremely low input signal power draw due to ultra-low 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 traditional 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 'SAL' corresponds to the 8-pin Small Outline Plastic DIP (SOIC) package with lead-free (RoHS) compliance as defined by the manufacturer's ordering information. Confirm that the operating temperature range requirements align with the commercial grade specifications (0°C to +70°C) provided for this package variant. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select this component when designing circuits requiring minimal source loading effects and high signal integrity from high-impedance sources. It is suitable for applications where low power dissipation is critical, such as battery-operated portable instruments. Consider its rail-to-rail performance for systems operating on low supply voltages. Verify that the load capacitance requirements fall within the specified limits for stability in unity gain or gain-of-five configurations.

Part Context

This part belongs to the ALD1732A/ALD1732 series of precision operational amplifiers manufactured using enhanced EPAD silicon gate CMOS technology. The series is designed to minimize input signal power, which is the product of input offset voltage and bias current. The ALD1732ASAL specifically denotes the version packaged in an 8-pin SOIC format, offering industry-standard pin configurations comparable to legacy devices like the µA741 and ICL7611.

Replacement Considerations

The datasheet indicates compatibility with industry standard µA741 and ICL7611 pin configurations. No specific substitute part numbers are documented in the provided material.