ADA4177-4ARUZ-RL

Overview

The ADA4177-4ARUZ-RL is a quad-channel precision operational amplifier from Analog Devices, housed in a 14-lead TSSOP package. It features low offset voltage (60 µV max), low drift (1 µV/°C max), and low input bias current (1 nA max). The device offers rail-to-rail output swing, unity-gain stability, and operates over a supply range of ±2.5 V to ±18 V. Key specifications include a gain bandwidth product of 3.5 MHz, slew rate of 1.5 V/µs, and typical supply current of 500 µA per amplifier.

Feature Summary

• Integrated input overvoltage protection up to 32 V beyond supply rails
• Built-in electromagnetic interference (EMI) filtering for signal integrity
• Rail-to-rail output capability with capacitive load stability
• Low noise density and low power consumption design

Applications

• Wireless base station control circuits
• Optical network control circuits
• Precision sensor signal conditioning
• Thermocouple and RTD measurement systems

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm the 14-lead TSSOP package type matches the target PCB footprint. Ensure the operating temperature range of -40°C to +125°C aligns with environmental requirements. Cross-reference the datasheet revision E for any updated electrical characteristics or pin configurations before finalizing the bill of materials.

Selection Notes

Select this component for applications requiring high DC precision combined with robust input protection against transient voltages. The integrated EMI filter makes it suitable for noisy industrial environments. Compare the 3.5 MHz bandwidth against system speed requirements. Consider the quad configuration to reduce board space compared to single-channel alternatives.

Part Context

This part belongs to the ADA4177 family of protected input op amps, succeeding earlier generations like the OP191 and ADA4096. It combines the precision of the OPxx77 series with enhanced ruggedness features. The quad variant provides four independent amplifiers in a compact surface-mount package, ideal for multi-channel data acquisition systems.

Replacement Considerations

ADA4177-4ARZ is the SOIC package equivalent. ADA4177-4ARUZ is the tube version of the same TSSOP package. Check pin compatibility and thermal resistance differences between SOIC and TSSOP variants during substitution.