AD8620BR

Overview

The AD8620BR is a dual-channel, precision JFET input operational amplifier manufactured by Analog Devices. It features a gain bandwidth product of 25 MHz and a slew rate of 60 V/μs at ±13 V supplies. The device offers low offset voltage (100 μV maximum), low input bias current (10 pA maximum), and low noise density (6 nV/√Hz). It operates within an extended industrial temperature range from -40°C to +125°C and utilizes an 8-lead narrow SOIC surface-mount package.

Feature Summary

• JFET input architecture providing ultralow offset voltage and drift alongside very low input bias current across the entire operating temperature range.
• High output drive capability with fast settling time to 0.01% accuracy and unconditional stability even with large capacitive loads exceeding 1000 pF.
• Designed without phase reversal when inputs are forced beyond the common-mode voltage range, ensuring reliable operation in servo systems.

Applications

• Photodiode amplifiers
• Automated test equipment (ATE) amplification and buffering
• Medical instrumentation including CAT, MRI, and ultrasound devices
• Fast precision filters and integrator circuits

Procurement Notes

Verify that the ordering suffix BR corresponds to the specific grade and package configuration required for your design. Confirm the manufacturer source is authorized to ensure component authenticity. Check datasheet specifications against your system requirements for supply voltage limits and thermal management needs before finalizing procurement.

Selection Notes

Select this component when high precision and wide bandwidth are required simultaneously. It is suitable for driving high-performance ADC inputs or buffering DAC outputs due to its high output drive and low distortion characteristics. Consider the extended temperature range if the application involves environments with limited active cooling.

Part Context

The AD8620BR belongs to the AD8610/AD8620 family of precision amplifiers fabricated on the XFCB process. This technology combines dielectrically isolated NPN/PNP transistors with N-channel JFETs and thin-film resistors. The dual-channel AD8620 variant shares these core performance attributes with the single-channel AD8610 but provides two independent amplifiers in one package.

Replacement Considerations

The AD8620ARZ is a verified substitute part number within the same product family offering identical electrical specifications and functionality.