ADA4004-4ARZ

Overview

The ADA4004-4ARZ is a quad precision amplifier from Analog Devices, featuring 1.8 nV/√Hz voltage noise density and a 12 MHz gain bandwidth product. It operates on ±5 V to ±15 V supplies with a supply current of 2.2 mA per amplifier. The device offers a maximum offset voltage of 125 μV and input bias current of 90 nA. Packaged in a 14-lead SOIC_N (R-14), it supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Designed using high-performance iPolar™ process technology for reduced noise and power consumption.
• Features very low voltage noise density of 1.8 nV/√Hz and a low 6 Hz 1/f noise corner frequency.
• Provides high open-loop gain of 120 dB and wide bandwidth of 12 MHz.

Applications

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

Procurement Notes

Verify the specific package option R-14 corresponds to the 14-Lead SOIC_N configuration when sourcing. Confirm RoHS compliance status indicated by the Z suffix. Ensure the ordering suffix matches the required tape and reel or tube packaging format for production integration.

Selection Notes

Select this component for applications requiring low noise and high precision within a quad amplifier configuration. Consider the 14-lead SOIC package for layout flexibility compared to smaller footprints. Evaluate the 12 MHz bandwidth against signal requirements to ensure adequate phase margin and stability under expected capacitive loads.

Part Context

This part belongs to the ADA4004 series, which includes single (ADA4004-1) and dual (ADA4004-2) variants. All members share identical electrical characteristics but differ in channel count and package options. The series utilizes the iPolar™ process to achieve low noise and low power consumption simultaneously.

Replacement Considerations

Direct functional substitutes include ADA4004-1 and ADA4004-2 if fewer channels are acceptable. Other low-noise precision amplifiers may require verification of pinout compatibility and electrical parameter alignment.

FAQ

What is the typical supply current per amplifier?

The typical supply current is 2.2 mA per amplifier at ±15 V operation.

Does the device support rail-to-rail output?

No, the datasheet specifies output voltage swing limits relative to the supply rails, not full rail-to-rail capability.