ADA4805-1AKSZ-R2

Overview

The ADA4805-1AKSZ-R2 is a single-channel, high-speed voltage feedback amplifier with rail-to-rail output. It features an ultralow quiescent current of 500 µA and a shutdown pin that reduces supply current to approximately 3 µA. The device offers a 105 MHz bandwidth, 160 V/µs slew rate, and low input offset voltage of 125 µV maximum. It operates on supplies from ±1.5 V to ±5 V or single 3 V/5 V. Packaged in a 6-lead SC70, it supports industrial temperatures from -40°C to +125°C.

Feature Summary

• Ultralow power consumption with dynamic scaling via a dedicated shutdown pin
• High-speed performance including 105 MHz bandwidth and 160 V/µs slew rate
• Rail-to-rail output capability with low noise density
• Low input offset voltage drift for precision applications

Applications

• Driving high-resolution analog-to-digital converters (ADCs)
• Battery-powered instrumentation systems
• Micropower active filters
• Portable point-of-sale terminals
• Active RFID readers

Procurement Notes

Verify the specific ordering suffix AKSZ-R2 against official Analog Devices documentation to confirm the 6-lead SC70 package and tape-and-reel packaging configuration. Ensure the component meets the required industrial temperature range specifications before integration into final designs.

Selection Notes

Select this amplifier for applications requiring a balance of high speed and low power consumption. The integrated shutdown feature enables dynamic power management between ADC sampling periods. Verify that the 105 MHz bandwidth and 160 V/µs slew rate meet the signal processing requirements of the target system.

Part Context

This component belongs to the ADA4805 family of rail-to-rail amplifiers manufactured by Analog Devices using the XFCB process. The family includes dual-channel variants like the ADA4805-2. These devices are designed for high-performance data acquisition systems where power efficiency and signal integrity are critical constraints.

Replacement Considerations

The ADA4805-1AKSZ is the base part number for the single-channel variant in the SC70 package. Check for other suffixes such as ARJZ for SOT-23 packaging if footprint changes are permissible.