Voltage - Input Offset:	2.5mV
Base Part Number:	ADA4891
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
Current - Output / Channel:	125mA
Current - Supply:	4.4mA
Series:	--
Current - Input Bias:	2pA
-3db Bandwidth:	240MHz
Slew Rate:	210 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	3
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The ADA4891-3ARZ-RL is an operational amplifier (opamp) and a buffer amplifier, that is used in the field of linear and instrumentation. This opamp is a high performance, low noise, low power amplifier, which is ideal for signal buffering in a variety of applications. This article discusses the application field and working principle of the ADA4891-3ARZ-RL.

Application Field

The ADA4891-3ARZ-RL is suitable for use in a wide range of instrumentation and linear applications, including medical and industrial instrumentation, digital signal and audio processing, signal conditioning, and motor control applications. The low power consumption of 2.5mA and low noise of 0.3μV/√Hz makes it an ideal choice for these applications.The ADA4891-3ARZ-RL also has a wide range of input and output specifications, allowing for a wide range of applications. The voltage common mode range (CMR) of -7V to +14V and differential input range of ±22V makes it suitable for use in a variety of instrumentation and linear applications. The 1.3nV/√Hz of noise is suitable for high accuracy applications, and the slew rate of 60V/μs ensures a fast response time.

Working Principle

The ADA4891-3ARZ-RL is a bipolar opamp with a single differential input and a single output. It achieves low input noise and distortion by using a differential design with a high common-mode rejection ratio (CMRR) of 82dB, which enables even highly sensitive instrumentation applications to be accurately and reliably processed. The opamp has been designed to reduce total system cost by using a single power supply, allowing for a wider range of applications.The ADA4891-3ARZ-RL uses a conventional operational amplifier architecture, with two differential input stages and one output stage. The differential input stages provide high input impedance, low distortion, and low noise. The output stage is designed to provide low output noise, low output impedance, and good transient performance.

Conclusion

The ADA4891-3ARZ-RL is a low power, low noise operational amplifier used in the field of linear and instrumentation. It is suitable for a wide range of applications, including medical and industrial instrumentation, digital signal and audio processing, signal conditioning, and motor control. It has a wide range of input and output specifications, making it an ideal choice for a variety of applications. The ADA4891-3ARZ-RL also uses a conventional operational amplifier architecture with two differential input stages and one output stage, providing low noise and distortion with a high common-mode rejection ratio of 82dB.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description