AD45048ARZ-REEL7

Overview

The AD45048ARZ-REEL7 is a dual voltage feedback operational amplifier with rail-to-rail output, designed for high-current upstream ADSL line driving. It operates on a supply range of 3.3 V to 24 V and delivers a linear output current of 230 mA peak into 25 Ω. The device features a 65 MHz bandwidth and a 55 V/μs slew rate. Noise performance includes 4.5 nV/√Hz voltage noise density at 100 kHz. It achieves −68 dBc multitone power ratio (MTPR) at 15 dBm into a 100 Ω telephone line.

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 low impedance loads
• Fabricated using 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)
• Audio applications

Procurement Notes

Verify component status as the datasheet indicates this part may be obsolete. Confirm availability through authorized distributors or secondary markets if standard channels are depleted. Ensure the ordering suffix matches the required reel quantity and lead-free specifications. Check for updated replacement recommendations from Analog Devices due to potential lifecycle changes.

Selection Notes

Select this dual op amp when driving high-fidelity xDSL signals requiring high output current and wide dynamic range. It serves as a drop-in replacement for TS613ID and EL1519CS in transformer-coupled bridge hybrid circuits. Consider its 65 MHz bandwidth and low noise characteristics for maintaining signal integrity in upstream transmission paths over twisted pair lines.

Part Context

The AD45048 is part of Analog Devices' portfolio of high-speed amplifiers fabricated on the proprietary XFCB-HV silicon-on-insulator process. This technology prevents latch-up and enables high-frequency operation with minimal power dissipation. The device is packaged in an 8-lead SOIC suitable for surface mount assembly in compact telecommunications equipment.

Replacement Considerations

The datasheet identifies the AD45048 as a drop-in replacement for the TS613ID and EL1519CS. Verify pin compatibility and electrical parameter alignment before substituting these legacy components in existing designs.