ADA4004-2ARZ-R7

Overview

The ADA4004-2ARZ-R7 is a dual 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 an open-loop gain of up to 120 dB. Input offset voltage is specified at a maximum of 125 μV at ±15 V, with a drift of 0.7 μV/°C. It consumes 2.2 mA per amplifier and functions from −40°C to +125°C in an 8-Lead SOIC package.

Feature Summary

• Very low voltage noise density of 1.8 nV/√Hz for high signal integrity
• High open-loop gain of 120 dB ensuring precise amplification
• Low input bias current of 90 nA maximum
• Wide bandwidth of 12 MHz supporting fast signal processing

Applications

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

Procurement Notes

Verify the specific ordering suffix R7 confirms tape and reel packaging when sourcing this component. Ensure the ARZ designation matches the required 8-Lead SOIC_N package option. Confirm RoHS compliance status as indicated by the Z suffix. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity and revision history before integration into production designs.

Selection Notes

Select this dual amplifier variant when two independent precision channels are required in a compact form factor. The 8-Lead SOIC package provides a balance between thermal performance and board space efficiency compared to smaller packages. Consider the 12 MHz bandwidth and 2.7 V/μs slew rate for applications requiring moderate speed alongside ultra-low noise characteristics. Verify that the ±5 V to ±15 V operating range aligns with the system power supply constraints.

Part Context

This component belongs to the ADA4004 series, which includes single (ADA4004-1), dual (ADA4004-2), and quad (ADA4004-4) amplifier configurations. All variants share the same core iPolar™ process technology, offering identical electrical specifications such as 1.8 nV/√Hz noise and 12 MHz bandwidth. The series is designed for high-performance analog signal conditioning tasks requiring low power consumption and small footprint.

Replacement Considerations

Direct functional substitutes within the same family include ADA4004-2ARMZ (MSOP package) or ADA4004-2ARZ (tube packaging). For single-channel requirements, ADA4004-1ARZ-R7 is compatible electrically but requires pinout adjustment. Quad versions like ADA4004-4ARZ-R7 offer four channels but differ in pin configuration and thermal dissipation.