ADA4841-2YRZ

Overview

The ADA4841-2YRZ is a dual-channel, unity-gain stable, low noise and distortion, rail-to-rail output amplifier manufactured by Analog Devices Inc. It features a maximum quiescent current of 1.5 mA per amplifier, with a typical value of 1.1 mA. The device offers a wideband voltage noise of 2.1 nV/√Hz and current noise of 1.4 pA/√Hz at 100 kHz, alongside a spurious-free dynamic range of −105 dBc at 100 kHz. It provides an 80 MHz bandwidth (G = +1), a slew rate of 12 V/µs, and a settling time to 0.1% of 175 ns. The input offset voltage is typically 40 µV with a maximum of 300 µV. Operating over a supply range of 2.7 V to 12 V, it supports an industrial temperature range from -40°C to +125°C.

Feature Summary

• Low power consumption with 1.1 mA per amplifier quiescent current
• Rail-to-rail output capability extending within 50 mV of either supply rail
• High speed performance including 80 MHz bandwidth and 12 V/µs slew rate
• Low noise characteristics with 2.1 nV/√Hz voltage noise density

Applications

• Low power, low noise signal processing
• Battery-powered instrumentation
• 16-bit PulSAR ADC drivers

Procurement Notes

Verify the specific package type and tape-and-reel quantity against the manufacturer's ordering guide before purchase. Confirm that the component meets RoHS compliance requirements for your region. Ensure the operating temperature range aligns with your system's environmental specifications. Cross-reference the datasheet revision to confirm parameter consistency.

Selection Notes

Select this component when designing circuits requiring high precision with minimal power consumption. It is suitable for driving 16-bit to 18-bit ADCs due to its low noise and distortion profiles. Consider the rail-to-rail output swing if operating near supply limits. Verify capacitive load drive capabilities if interfacing with long cables or sample-and-hold circuits.

Part Context

This part belongs to the ADA4841 family, which includes single-channel (ADA4841-1) and dual-channel (ADA4841-2) variants. The YRZ suffix indicates an 8-lead SOIC_N package with a tape-and-reel shipping configuration. The device is fabricated on ADI's second-generation XFCB process, ensuring trimmed supply current and offset voltage for improved precision.

Replacement Considerations

The ADA4841-1YRZ serves as the single-channel equivalent within the same family. Other low-power, low-noise amplifiers may be considered if pin compatibility is not required, but direct replacement should verify matching bandwidth, noise, and supply voltage specifications.