ADA4505-2ACBZ-RL

Overview

The ADA4505-2ACBZ-RL is a dual-channel micropower operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output swings, operating from a single 1.8 V to 5 V supply or dual ±0.9 V to ±2.5 V supplies. Key electrical parameters include a maximum offset voltage of 3 mV, typical input bias current of 0.5 pA, and supply current of 7 µA per amplifier. The device offers a gain-bandwidth product of 50 kHz, slew rate of 6 mV/µs, and CMRR of 105 dB. It is housed in an 8-ball WLCSP package and operates within the extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Zero input crossover distortion achieved through an on-chip charge pump technology that powers the input differential pair, eliminating signal distortion at crossover points.
• Rail-to-rail input and output capability ensures full common-mode dynamic range without phase reversal across the entire supply voltage spectrum.
• Ultra-low power consumption with a supply current of less than 10 µA per amplifier, optimizing battery life in portable applications.
• High precision performance characterized by very low input bias current (0.5 pA typical) and high common-mode rejection ratio.

Applications

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

Procurement Notes

Verify the specific ordering suffix ACBZ-RL against the manufacturer's official documentation to confirm the 8-ball WLCSP package and reel packaging configuration. Ensure compatibility with the extended industrial temperature range specifications (-40°C to +125°C) required for your application environment. Cross-reference the datasheet revision history for any updates to electrical characteristics or thermal resistance values prior to final design integration.

Selection Notes

Select this component when designing low-voltage, battery-operated circuits requiring high precision and minimal power draw. The zero crossover distortion feature makes it suitable for applications where standard rail-to-rail amplifiers introduce unacceptable signal artifacts. Consider the 8-ball WLCSP package constraints regarding PCB layout and thermal dissipation if operating near the upper temperature limits.

Part Context

This part belongs to the ADA4505-x family of micropower amplifiers, which includes single (ADA4505-1), dual (ADA4505-2), and quad (ADA4505-4) variants. The family shares core technologies such as the charge pump-based input stage and CMOS architecture. While other variants offer different channel counts or packages like MSOP or TSSOP, the ADA4505-2ACBZ-RL specifically provides dual channels in a compact wafer-level chip-scale package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.