ALD1722GSAL

Overview

The ALD1722GSAL is a monolithic precision low power CMOS operational amplifier from Advanced Linear Devices. It features rail-to-rail input and output capabilities, an industry-standard pinout compatible with μA741 and ICL7611 types, and extremely low input signal power. Key electrical parameters include a typical 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 on supply voltages ranging from ±2.0 V to ±5.0 V (single supply 4.0 V to 10.0 V) with a supply current of 0.8 mA. The device 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 ranges
• Robust high-temperature operation suitable for rugged environments
• Industry standard pin configuration for easy replacement

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 'GSAL' corresponds to the lead-free (RoHS) compliant version in the 8-pin Small Outline Plastic Dip (SOIC) package. Confirm the operating temperature range requirements match the commercial grade specification of 0°C to +70°C. Ensure static control procedures are followed during handling as the device is ESD sensitive. Cross-reference the manufacturer part number with distributor listings to confirm availability and authenticity.

Selection Notes

Select this component for applications requiring high source impedance compatibility and minimal loading effects. The rail-to-rail input/output feature allows operation in low power supply environments. Consider the 1.5 MHz bandwidth and 2.1 V/μs slew rate for signal conditioning needs. Verify that the load capacitance requirements do not exceed the specified limits for stability in unity gain configurations.

Part Context

The ALD1722GSAL belongs to the ALD1722 family of precision low power CMOS operational amplifiers manufactured by Advanced Linear Devices. This series is designed to set standards for low input signal power, offering unparalleled accuracy for capacitive and high-sensitivity signal sources. The device utilizes a three-stage architecture with internal frequency compensation for stability.

Replacement Considerations

The datasheet indicates compatibility with industry standard pinouts of μA741 and ICL7611 types. No specific substitute part numbers are provided in the documentation.