AD45048AR-REEL

Overview

The AD45048AR-REEL is a dual voltage feedback operational amplifier designed for rail-to-rail upstream ADSL line driving. It features a wide supply range from 3.3 V to 24 V and delivers high output current with a linear peak of 230 mA into 25 Ω. The device provides a differential output swing of 23 V p-p at 12 V supply with a 50 Ω load. Key electrical parameters include a 65 MHz bandwidth, 55 V/μs slew rate, and low noise characteristics of 4.5 nV/√Hz voltage and 1.5 pA/√Hz current noise density at 100 kHz.

Feature Summary

• Rail-to-rail output stage capable of swinging within 0.5 V of supply rails
• High output current capability of 230 mA peak into 25 Ω loads
• Fabricated on XFCB-HV process for high speed and low distortion
• Designed specifically for driving upstream signals in ADSL CPE applications

Applications

• Consumer xDSL modems
• Twisted pair line drivers
• ADSL Customer Premises Equipment (CPE) applications
• Audio applications

Procurement Notes

Verify component status as the datasheet indicates this part is obsolete. Confirm availability through authorized distributors or secondary market sources. Ensure the ordering suffix matches the required packaging format, such as reel options for automated assembly. Check for lead-free variants if environmental compliance is required for the specific manufacturing process.

Selection Notes

Select this dual op amp when high output current and rail-to-rail performance are critical for driving telephone lines. It serves as a drop-in replacement for TS613ID and EL1519CS in existing designs. Consider the 8-lead SOIC package constraints and thermal dissipation requirements. Ensure the application benefits from the specific bandwidth and slew rate characteristics provided by the XFCB-HV process technology.

Part Context

This component belongs to the Analog Devices family of high-speed amplifiers fabricated using proprietary XFCB-HV silicon-on-insulator technology. This process enables high frequency operation while preventing latch-up issues. The AD45048 is part of a series of line drivers optimized for xDSL applications, offering integrated solutions for consumer premise equipment manufacturers requiring reliable twisted pair signal transmission.

Replacement Considerations

The datasheet explicitly identifies the AD45048 as a drop-in replacement for the TS613ID and EL1519CS components. Designers migrating from these parts should verify pin compatibility and ensure that the power supply and decoupling requirements remain consistent with the original design specifications.