AD8610ARZ

Overview

The AD8610ARZ is a precision, very low noise, low input bias current, wide bandwidth JFET operational amplifier manufactured by Analog Devices Inc. It features ultralow offset voltage and drift, very low input voltage and current noise, and wide bandwidth. The device operates with dual supplies ranging from ±5 V to ±13 V and is stable with capacitive loads exceeding 1000 pF in noninverting unity gain configurations. It offers fast settling times of 600 ns to 0.01% accuracy and high output drive capability, making it suitable for driving high-performance ADC inputs and buffering DAC converter outputs.

Feature Summary

• Very low input voltage noise density and current noise density ensure high signal integrity in sensitive applications.
• Low input bias current maintained over the entire operating temperature range minimizes errors in high-impedance circuits.
• Unconditional stability with large capacitive loads eliminates the need for external compensation components.
• No phase reversal behavior prevents system lockup when inputs are forced beyond the common-mode voltage range.

Applications

• Photodiode amplifiers
• Automated test equipment (ATE)
• Instrumentation and sensor controls
• High performance filters
• Fast precision integrators

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the AD8610 is available in both 8-lead MSOP and 8-lead SOIC packages. Confirm that the selected variant meets the extended industrial temperature range specifications if operation outside standard conditions is required. Ensure compatibility with the intended supply voltage range of ±5 V to ±13 V during the design phase.

Selection Notes

Select this component for applications requiring high precision combined with wide bandwidth and low noise characteristics. Consider the JFET input architecture for its extremely low input bias current, which is critical for interfacing with high-impedance sensors. Evaluate the capacitive load driving capability against the specific requirements of the downstream circuitry to leverage its stability without additional compensation.

Part Context

The AD8610/AD8620 series represents a class of precision JFET input amplifiers designed using the XFCB process. This technology enables dielectrically isolated transistors and thin-film resistors, resulting in superior offset voltage trimming and low temperature drift. The AD8610 is the single-channel version of this family, offering compact surface-mount packaging options for space-constrained designs.

Replacement Considerations

Public confirmed substitute part numbers: AD8620.