ADA4505-2ARMZ-RL

Overview

The ADA4505-2ARMZ-RL is a dual-channel micropower operational amplifier from Analog Devices, featuring rail-to-rail input and output swings. It operates on a single supply of 1.8 V to 5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical specifications include a maximum offset voltage of 3 mV, typical input bias current of 0.5 pA, and gain-bandwidth product of 50 kHz. The device provides a minimum power supply rejection ratio (PSRR) of 100 dB and typical common-mode rejection ratio (CMRR) of 105 dB. Supply current is limited to 10 μA per amplifier. It is housed in an 8-lead MSOP package.

Feature Summary

• Zero input crossover distortion achieved through an internal charge pump technology that maintains full common-mode dynamic range without signal degradation.
• Rail-to-rail input and output capabilities ensure maximum signal swing availability across the entire supply voltage range.
• Ultra-low supply current consumption minimizes power drain, making it suitable for extended battery life in portable applications.

Applications

• Pressure and position sensors
• Remote security systems
• Medical monitors
• Battery-powered consumer equipment
• Hazard detectors

Procurement Notes

Verify the specific ordering suffix 'RL' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets all relevant environmental compliance standards applicable to your manufacturing region before finalizing procurement orders.

Selection Notes

Select this component when designing low-voltage circuits requiring high precision with minimal power consumption. Ensure the application environment stays within the specified operating temperature range and that the supply voltage remains within the defined limits to maintain guaranteed performance metrics.

Part Context

This part belongs to the ADA4505-x family of zero-drift amplifiers, which includes single (ADA4505-1) and quad (ADA4505-4) variants. The family shares core architectural features such as CMOS rail-to-rail I/O and ultra-low bias currents, offering designers flexibility in channel count while maintaining consistent electrical characteristics across the series.

Replacement Considerations

Direct substitutes within the same family include the ADA4505-1ARJZ-R7 (single channel) and ADA4505-4ACBZ-RL (quad channel). Verify pin compatibility and thermal requirements when considering these alternatives for board-level replacements.