ALD1722SAL

Overview

The ALD1722SAL is a monolithic precision low power CMOS operational amplifier designed for applications requiring extremely low input signal power. It features rail-to-rail input and output voltage ranges, allowing operation with supply voltages from ±2V to ±5V or +5V single supply. The device offers an input bias current of 0.01 pA, input offset voltage of 25 µV, bandwidth of 1.5 MHz, and slew rate of 2.1 V/µs. 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 minimal input bias current and offset voltage
• Rail-to-rail large signal input and output voltage capabilities
• Robust high-temperature operation suitable for rugged environments
• Industry standard pinout compatible with μA741 and ICL7611 configurations

Applications

• Precision cable driver
• Sensor interface circuits
• Unity gain buffer amplifier
• Capacitive and charge integration circuits
• High source impedance electrode amplifiers

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic DIP (SOIC) package and the commercial operating temperature range of 0°C to +70°C. Confirm RoHS compliance status as indicated by the lead-free designation. Ensure design requirements align with the specified absolute maximum ratings and electrical characteristics for single or dual supply operations.

Selection Notes

Select this component when minimizing source loading effects is critical for signal integrity. It is suitable for capacitive and high sensitivity, high impedance signal sources. Consider the rail-to-rail input/output feature for low power supply environments where supply overhead voltage must be reduced. Verify that the load capacitance requirements fall within the specified limits for stability in unity gain or higher gain configurations.

Part Context

The ALD1722 series includes variants such as the ALD1722G for extended temperature ranges and different packaging options like PAL and DA. The ALD1722SAL specifically denotes the surface mount SOIC package variant intended for commercial temperature applications. This part belongs to a family of precision low power CMOS operational amplifiers designed for high accuracy and low power consumption.

Replacement Considerations

Consult manufacturer documentation for direct substitutes. No public confirmed substitute part numbers are available in the provided datasheet.