AD45048AR-REEL7

Overview

The AD45048AR-REEL7 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 density of 4.5 nV/√Hz at 100 kHz. It operates within a temperature range of −40°C to +85°C.

Feature Summary

• Rail-to-rail output stage capable of swinging to within 0.5 V of supply rails
• High output current capability with 230 mA peak linear drive
• Fabricated on XFCB-HV process for high speed and low distortion
• Integrated protection against latch-up issues

Applications

• Consumer xDSL modems
• Twisted pair line drivers
• ADSL 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Verify component status as the datasheet indicates this part is obsolete.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 variants. Check for lead-free (Z) compliance if environmental regulations require it. Validate that the specific lot meets the -40°C to +85°C operating temperature range specified in the ordering guide.

Selection Notes

Select this dual op amp for applications requiring high fidelity signal transmission over twisted pairs. It serves as a drop-in replacement for TS613ID and EL1519CS. Consider the 65 MHz bandwidth and 55 V/μs slew rate for high-speed upstream data signals. Ensure the power supply decoupling follows layout guidelines to minimize ripple. Evaluate transformer turns ratios for impedance matching in bridge hybrid circuits.

Part Context

This component belongs to the Analog Devices AD45048 family of xDSL line driver amplifiers. It is specifically engineered for Customer Premises Equipment (CPE) in ADSL systems. The device utilizes proprietary XFCB-HV silicon-on-insulator technology to achieve high performance while minimizing power dissipation. It is packaged in an 8-lead SOIC housing suitable for surface mount assembly.

Replacement Considerations

The datasheet explicitly identifies the TS613ID and EL1519CS as compatible drop-in replacements. Verify pin compatibility and electrical specifications before substitution. Since the AD45048 is marked obsolete, confirm functional equivalence regarding output swing and current drive capabilities with potential alternative parts.