ADA4625-1ARDZ-R7

Overview

The ADA4625-1ARDZ-R7 is a single-channel, precision JFET input operational amplifier manufactured by Analog Devices. It features an 18 MHz gain bandwidth product and a 48 V/µs slew rate. The device operates on dual supplies from ±2.5 V to ±18 V or single supplies from 5 V to 36 V. Key electrical characteristics include a low voltage noise density of 3.3 nV/√Hz at 1 kHz, an input bias current of ±15 pA, and a maximum offset voltage of ±80 µV. It provides rail-to-rail output swing and is housed in an 8-lead SOIC package with an exposed pad.

Feature Summary

• JFET input architecture providing high impedance and minimal input bias current
• Rail-to-rail output capability maximizing dynamic range in single-supply applications
• High-speed performance with wide gain bandwidth and fast settling times
• Low noise density suitable for sensitive signal processing

Applications

• PLL filter amplifiers
• Transimpedance amplifiers
• Photodiode sensor interfaces
• Low noise charge amplifiers

Procurement Notes

Verify the specific ordering suffix R7 corresponds to the reel packaging format required for your assembly line. Confirm that the component meets all necessary environmental compliance standards for your region before finalizing procurement. Ensure the supplier source is authorized to guarantee authenticity and traceability of the Analog Devices semiconductor.

Selection Notes

Select this component when high speed and low noise are critical requirements alongside precision DC accuracy. The JFET input stage is ideal for applications requiring extremely low input bias currents. Consider the rail-to-rail output feature if operating near supply rails in single-supply systems without negative voltage generation.

Part Context

This part belongs to the ADA4625 family of high-voltage, single-supply, rail-to-rail output precision op amps. It builds upon industry-leading JFET input technology to deliver superior speed and low noise characteristics not previously available in this category. The family includes dual-channel variants like the ADA4625-2.

Replacement Considerations

Direct functional replacements within the same family include the ADA4625-1ARJZ and ADA4625-1ARQZ. Verify pin compatibility and thermal resistance specifications when substituting packages.