ADA4004-1ARZ

Overview

The ADA4004-1ARZ is a single-channel precision operational amplifier manufactured by Analog Devices Inc. It features a voltage noise density of 1.8 nV/√Hz and a gain bandwidth product of 12 MHz. The device operates on supply voltages ranging from ±5 V to ±15 V with a maximum total supply of 36 V. Key electrical specifications include an input offset voltage of 40 μV, an input bias current of 90 nA, and a supply current of 2.2 mA per amplifier. It provides a slew rate of 2.7 V/μs and maintains operation across a temperature range of −40°C to +125°C.

Feature Summary

• Achieves low voltage noise density of 1.8 nV/√Hz utilizing high-performance iPolar process technology.
• Provides high open-loop gain of 120 dB for precise signal amplification.
• Operates within wide supply voltage ranges from ±5 V to ±15 V.

Applications

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

Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's official documentation before procurement. Confirm that the component meets RoHS compliance requirements as indicated by the 'Z' suffix in the part number. Ensure the selected variant matches the required operating temperature range and pin configuration for your circuit design.

Selection Notes

Select this component when low noise performance and high precision are critical requirements. The device is suitable for applications requiring stable operation over a wide temperature range and moderate bandwidth. Consider the available packaging options to match board space constraints and assembly methods.

Part Context

The ADA4004-1ARZ belongs to the ADA4004 series of precision amplifiers, which also includes dual (ADA4004-2) and quad (ADA4004-4) variants. This family shares common electrical characteristics such as low noise and high gain but differs in channel count and physical package configurations. The series is designed for applications demanding high accuracy and stability.

Replacement Considerations

Direct substitutes within the same family include the ADA4004-1ARJZ and ADA4004-1ARZ-R7. Verify pin compatibility and thermal resistance values when considering alternative packages or reel quantities.

FAQ

What is the input offset voltage drift specification?

The input offset voltage drift is specified as 0.7 μV/°C typical and 1 μV/°C maximum over the operating temperature range.

Does the device exhibit phase reversal upon overdrive?

No, the datasheet indicates no phase reversal occurs even when the input signal exceeds the common-mode range.