ADA4004-4ARZ-R7

Overview

The ADA4004-4ARZ-R7 is a quad precision amplifier manufactured by Analog Devices Inc. It features a 12 MHz gain bandwidth product, 2.7 V/µs slew rate, and 1.8 nV/√Hz voltage noise density. The device operates on ±5 V to ±15 V supplies with a supply current of 2.0 mA per amplifier. Input offset voltage is typically 40 µV with a maximum drift of 0.7 µV/°C. It provides 120 dB open-loop gain and 118 dB power supply rejection ratio. The component is housed in a 14-Lead SOIC_N package (R-14) and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Utilizes iPolar™ trench-isolation process technology for improved stability and reduced footprint.
• Delivers ultra-low voltage noise density of 1.8 nV/√Hz with a low 6 Hz 1/f noise corner frequency.
• Provides high open-loop gain of 120 dB and excellent common-mode rejection capabilities.
• Operates reliably across extended industrial temperature ranges without phase reversal.

Applications

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

Procurement Notes

Verify the specific ordering suffix R7 corresponds to the reel packaging configuration required for automated assembly processes. Confirm that the ARZ designation indicates RoHS compliance and lead-free construction as specified in the manufacturer's ordering guide. Ensure the 14-Lead SOIC_N package dimensions align with the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when multiple low-noise amplification channels are required within a single integrated circuit. The quad configuration offers board space savings compared to discrete single-channel solutions. Consider the 12 MHz bandwidth and 2.7 V/µs slew rate for applications requiring moderate speed alongside high DC accuracy and low offset voltage characteristics.

Part Context

This part belongs to the ADA4004 series, which includes single (ADA4004-1), dual (ADA4004-2), and quad (ADA4004-4) variants. All members share identical electrical specifications but differ in channel count and package options. The series is designed using Analog Devices' iPolar™ process to achieve low noise and power consumption simultaneously.

Replacement Considerations

Direct functional substitutes include other parts within the ADA4004 family such as the ADA4004-1 or ADA4004-2 if fewer channels are acceptable. Cross-family replacements like the AD8675 or AD8676 offer similar performance metrics but may require schematic adjustments due to differing pinouts or package types.

FAQ

Does the ADA4004-4 exhibit phase reversal during input overdrive?

No, the device is designed to prevent phase reversal even when the input signal exceeds the common-mode voltage range.

What is the typical 1/f noise corner frequency for this amplifier?

The typical 1/f noise corner frequency is 6 Hz, contributing to its ultra-low noise performance at low frequencies.