AD8624ARUZ

Overview

The AD8624ARUZ is a quad precision operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail output swing, unity gain stability, and low supply current of 215 μA per amplifier typical. The device operates within a voltage range of ±2.5 V to ±15 V and supports an extended industrial temperature range from −40°C to +125°C. Key electrical specifications include a maximum offset voltage of 125 μV, input bias current of 200 pA maximum, and a gain bandwidth product of 560 kHz at ±15 V operation.

Feature Summary

• Rail-to-rail output swing capability for maximizing dynamic range
• Input bias current cancellation circuitry for ultra-low bias current
• Unity gain stable design with no phase reversal issues
• Extended industrial operating temperature range

Applications

• Portable precision instrumentation
• Laser diode control loops
• Strain gage amplifiers
• Medical instrumentation
• Thermocouple amplifiers

Procurement Notes

Verify the specific package type against the ordering guide, as the AD8624 series includes both 14-lead TSSOP and 16-lead LFCSP options. Confirm that the suffix 'RUZ' corresponds to the lead-free 14-lead TSSOP package variant required for the design. Ensure compatibility with the intended supply voltage range and thermal management requirements for the selected footprint.

Selection Notes

Select this component when high DC precision and low power consumption are critical. The AD8624ARUZ offers superior offset voltage and drift characteristics compared to standard op amps. Consider the rail-to-rail output feature if signal swing near the supply rails is necessary. Verify that the 560 kHz bandwidth meets the application's frequency response requirements.

Part Context

This part belongs to the AD8622/AD8624 family of low-power, precision operational amplifiers. The AD8624 specifically provides four independent amplifiers in a single package, whereas the AD8622 provides two. Both share identical electrical characteristics and are designed for applications requiring high accuracy and low quiescent current.

Replacement Considerations

Direct functional replacements within the same package may include other parts from the AD862x family, such as the AD8622 for dual-channel applications. Cross-referencing with similar precision rail-to-rail amplifiers requires verifying matching offset voltage, bias current, and bandwidth specifications.