ADA4004-1ARJZ-R2

Overview

The ADA4004-1ARJZ-R2 is a single-channel precision operational amplifier manufactured by Analog Devices Inc. It features a voltage noise density of 1.8 nV/√Hz and operates within a supply voltage range of ±5 V to ±15 V (up to 36 V total). The device offers a gain bandwidth product of 12 MHz, a slew rate of 2.7 V/µs, and a maximum input offset voltage of 125 µV at ±15 V. It consumes 1.7 mA per amplifier and is housed in a 5-lead SOT-23 package.

Feature Summary

• Very low voltage noise density of 1.8 nV/√Hz
• High open-loop gain of 120 dB
• Low input bias current of 90 nA maximum
• Wide bandwidth of 12 MHz

Applications

• Precision instrumentation
• Filter blocks
• Microphone preamplifiers
• Industrial control
• Thermocouples and RTDs

Procurement Notes

Verify the specific ordering suffix R2 indicates reel packaging when sourcing this component. Confirm that the ARJZ designation corresponds to the 5-lead SOT-23 package option. Ensure compliance with RoHS standards as indicated by the Z suffix. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component for applications requiring high precision and low noise in a compact footprint. The 5-lead SOT-23 package is suitable for space-constrained designs compared to larger SOIC or MSOP options. Consider the 1.7 mA supply current per amplifier for power-sensitive systems. Verify that the 12 MHz bandwidth meets the signal frequency requirements of the target circuit design.

Part Context

This device belongs to the ADA4004 series of precision amplifiers from Analog Devices. The series includes single (ADA4004-1), dual (ADA4004-2), and quad (ADA4004-4) variants. These amplifiers are designed on the iPolar process to achieve improved speed, stability, and reduced noise while maintaining a small physical footprint for flexible layout options.

Replacement Considerations

Direct substitutes include other models within the ADA4004 family such as ADA4004-1ARJZ-R7 or ADA4004-1ARJZ-RL, which share identical electrical characteristics but differ in packaging quantity. Other single-channel precision amplifiers with similar noise and bandwidth specifications may be considered if pin compatibility allows.