ALD1704GPAL

Overview

The ALD1704GPAL is a single-channel CMOS operational amplifier featuring rail-to-rail input and output voltage ranges. It operates on dual supplies from ±3.25V to ±5V or single supplies up to 10V, consuming 5mA of supply current. Key electrical parameters include a gain-bandwidth product of 2.1MHz, a slew rate of 5V/µs, an input offset voltage of 10mV, and an input bias current of 30pA. The device provides symmetrical push-pull drive with short-circuit protection at approximately 15mA.

Feature Summary

• Rail-to-rail input and output voltage ranges allow operation near power supply limits
• Extremely low input bias currents suitable for high source impedance applications
• Unity gain stable without external frequency compensation
• High capacitive load capability supporting large capacitance values

Applications

• Voltage follower/buffer circuits
• Photodiode amplifiers
• Charge integrators
• Data acquisition systems
• Active filters

Procurement Notes

Verify the component matches the specific ALD1704G variant within the family, as performance specifications such as offset voltage and drift vary between sub-models like A, B, and standard G versions. Confirm the package type corresponds to the PDIP-8 designation and ensure the operating temperature range aligns with the 0°C to +70°C specification for this particular suffix. Cross-reference the manufacturer part number against official datasheets to confirm RoHS compliance status.

Selection Notes

Select this component when low operating voltages are required alongside high slew rates and low power consumption. It serves as a direct alternative to JFET input amplifiers in battery-powered or low-voltage systems. Ensure the application does not require extended temperature ranges beyond the specified commercial limits, as other variants exist for industrial environments. Verify that the 15mA output current capability meets the load requirements.

Part Context

This device belongs to the ALD1704 series of rail-to-rail CMOS operational amplifiers manufactured by Advanced Linear Devices. The series includes variants such as the ALD1704A, ALD1704B, and ALD1704, differentiated primarily by precision trimming levels for offset voltage and drift. The GPAL suffix indicates the specific grade and packaging configuration available in the PDIP-8 format.

Replacement Considerations

Direct substitutes include ALD1704APAL and ALD1704BPAL. Note that these variants exhibit different input offset voltage and drift characteristics compared to the standard ALD1704G model.