ADA4891-4ARUZ-RL

Overview

The ADA4891-4ARUZ-RL is a quad-channel, low-cost CMOS high-speed operational amplifier with rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device features a small-signal bandwidth of 220 MHz at unity gain (G = +1) and a slew rate of 170 V/µs. It achieves a settling time of 28 ns to 0.1% and delivers a linear output current of 125 mA. The quiescent current per amplifier is 4.4 mA. Input offset voltage is typically ±2.5 mV, and the input bias current is ±50 pA. The component is housed in a 14-lead TSSOP package.

Feature Summary

• Rail-to-rail input and output stages maximize dynamic range by swinging within 50 mV of the supply rails.
• High-speed performance includes a 220 MHz bandwidth and 170 V/µs slew rate for fast signal processing.
• Low distortion characteristics ensure high fidelity in video and imaging applications.
• Single-supply operation allows flexibility in power system design.

Applications

• Automotive infotainment systems
• Automotive driver assistance systems
• Imaging and consumer video equipment
• Active filters
• Coaxial cable drivers

Procurement Notes

Verify that the specific ordering suffix ARUZ-RL corresponds to the 14-lead TSSOP package and reel packaging configuration required for your assembly process. Confirm that the component meets automotive qualification standards if intended for vehicle electronics. Ensure compatibility with the specified operating temperature range of −40°C to +125°C during final design validation.

Selection Notes

Select this component when a quad-channel configuration is required alongside high-speed signal handling and low power consumption. The rail-to-rail capability makes it suitable for single-supply designs where maximizing output swing is critical. Consider the 125 mA output drive capability for driving moderate loads directly without additional buffering stages.

Part Context

This part belongs to the ADA4891 family of low-cost CMOS amplifiers, which also includes single (ADA4891-1), dual (ADA4891-2), and triple (ADA4891-3) channel variants. All members share identical electrical specifications and pinouts, differing only in the number of integrated amplifiers per package. The family is designed for cost-sensitive applications requiring high performance.

Replacement Considerations

Direct functional substitutes within the same package include the ADA4891-1, ADA4891-2, and ADA4891-3, provided the unused channels are terminated correctly. Other quad-channel amplifiers may require circuit redesign due to differences in bandwidth, slew rate, or pinout configurations.