AD8676BRZ

Overview

The AD8676BRZ is a dual precision operational amplifier from Analog Devices, housed in an 8-lead narrow SOIC package. It features ultralow offset voltage of 12 μV typical and low input bias current of 2 nA maximum. The device offers a wide bandwidth of 10 MHz and very low voltage noise density of 2.8 nV/√Hz at 1 kHz. It supports operation with supply voltages ranging from ±5 V to ±18 V and provides rail-to-rail output swing capabilities.

Feature Summary

• Features ultralow offset voltage and drift combined with very low input bias currents across the full operating temperature range.
• Provides rail-to-rail output swing capability alongside wide bandwidth and very low voltage noise characteristics.
• Delivers high open-loop gain and excellent common-mode rejection ratio for precision signal processing applications.

Applications

• Precision instrumentation
• PLL filters
• Laser diode control loops
• Strain gage amplifiers
• Medical instrumentation

Procurement Notes

Verify the specific grade (B or A) and package configuration when ordering, as specifications such as offset voltage vary between grades. Confirm that the component is RoHS compliant, indicated by the Z suffix in the part number. Ensure the supplier provides valid traceability documentation for the Analog Devices manufacturing source.

Selection Notes

Select this component for circuits requiring high dc precision and low noise without sacrificing bandwidth. The dual-channel architecture allows for space-efficient designs compared to single-channel alternatives. Consider the thermal resistance of the SOIC package for heat dissipation requirements in dense PCB layouts.

Part Context

The AD8676 belongs to a series of low-noise operational amplifiers offered by Analog Devices. It combines the precision and low power consumption of industry-standard OP07 amplifiers with the rail-to-rail output swing found in OP184 devices. This combination addresses the need for high dynamic range and signal-to-noise ratio in demanding analog signal chains.

Replacement Considerations

The AD8676ARZ is the equivalent single-channel version of this device. For quad-channel configurations within the same family, consider the AD8674. Single-channel alternatives include the AD8675. Verify pin compatibility and electrical specifications before substituting with other manufacturers' parts.

FAQ

What is the maximum supply voltage for the AD8676BRZ?

The absolute maximum supply voltage rating is ±18 V.

Does the AD8676BRZ support rail-to-rail input signals?

No, the datasheet specifies rail-to-rail output swing only; it does not list rail-to-rail input capability.

What is the typical input offset voltage drift for this component?

The typical input offset voltage drift is 0.2 μV/°C over the specified temperature range.