ADA4895-1ARJZ-R7

Overview

The ADA4895-1ARJZ-R7 is a single-channel, high-speed voltage feedback operational amplifier manufactured by Analog Devices Inc. It features a gain-bandwidth product exceeding 1.5 GHz and a slew rate of 943 V/µs. The device operates on a supply voltage range of 3 V to 10 V with a quiescent current of 3 mA per amplifier. Key electrical parameters include an input offset voltage of 53 µV, an input bias current of 6 µA, and an open-loop gain of 110 dB. It utilizes a 6-lead SOT-23 package.

Feature Summary

• Rail-to-rail output stage capability
• Gain stability for gains greater than or equal to +10
• Integrated disable feature for power management
• Low wideband noise performance

Applications

• Low noise preamplifier circuits
• Ultrasound amplifiers
• PLL loop filters
• High performance analog-to-digital converter (ADC) drivers
• Digital-to-analog converter (DAC) buffers

Procurement Notes

Verify the specific ordering suffix ARJZ-R7 against the manufacturer's official documentation to confirm the exact package type and reel specifications. Ensure the component matches the required pinout for the 6-lead SOT-23 configuration. Cross-reference the datasheet revision to confirm parameter consistency before finalizing procurement decisions.

Selection Notes

Select this component when a high bandwidth and low noise profile are required in a compact surface-mount package. It is suitable for applications demanding gain stability at gains of +10 or higher. Consider the 3 mA quiescent current consumption relative to system power budgets. Verify that the required gain does not fall below the stable operating range specified in the data sheet.

Part Context

This part belongs to the ADA4895 series, which includes single and dual channel variants. The series is designed using a proprietary SiGe bipolar process to achieve high speed and low noise characteristics. Other members of the family include the ADA4895-2 dual amplifier and companion devices like the ADA4896 and ADA4897 series.

Replacement Considerations

The ADA4897-1 is documented as a unity-gain stable alternative with similar bandwidth. For dual-channel requirements, the ADA4895-2 serves as the companion part within the same series.