AD8390

Obsolete

AD8390

Low Power, DSL CO Driver Amplifier

Obsolete

Suggested Replacement Parts

AD8390A

Low Power, High Output Current Differential Amplifier

Obsolete

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Features

Voltage feedback amplifier
Ideal for ADSL and ADSL2+ central office (CO) and customer premises equipment (CPE) applications
Enables high current differential applications
Low power operation:
Single- or dual-power supply operation from 10 V (±5 V) up to 24 V (±12 V)
4 mA total quiescent supply current for full power ADSL and ADSL2+ CO applications
Adjustable supply current to minimize power consumption

High output voltage and current drive:
400 mA peak output drive current
44.2 V p-p differential output voltage
Low distortion:
–82 dBc @ 1 MHz second harmonic
–91 dBc @ 1 MHz third harmonic
High speed:
300 V/µs differential slew rate

Additional Details

The AD8390 high output current - low power consumption amplifier is particularly well suited for the Central Office driver interface in Digital Subscriber Line systems such as ADSL, SDSL and VDSL. The driver is capable, in full bias operation, of providing 24.4dBm output power into low resistance loads, enough to power a 20.4dBm line, while compensating for losses due to hybrid insertion and back termination resistors.

Four power modes controlled by two digital bits allow the driver bias current to be varied so as to be capable of full performance output 'keep alive state', or two intermediate bias states. Additional bias flexibility is provided from the Iadj pin, which allows fine quiescent current trimming to tailor the performance of the AD8390.

The low power consumption, high output current, high output voltage swing and robust efficient packaging enable the AD8390 to be used as the Central Office (CO) terminal driver in ADSL, VDSL and proprietary xDSL systems.

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Technical Documents 7

AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev.0) 07/26/2006

AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications 02/14/2015

AN-358: Noise and Operational Amplifier Circuits 02/14/2015

AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev.0) 02/14/2015

AN-358: Noise and Operational Amplifier Circuits 03/01/1969

AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps 08/07/2023

AD8390: Low Power, High Output Current Differential Amplifier Obsolete Data Sheet (Rev.C) 09/28/2006

Reference Materials 12

MT-056: High Speed Voltage Feedback Op Amps 02/03/2009

MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps 02/14/2015

MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps 02/14/2015

MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth 02/14/2015

MT-033: Voltage Feedback Op Amp Gain and Bandwidth 02/14/2015

MT-050: Op Amp Total Output Noise Calculations for Second-Order System 02/14/2015

MT-047: Op Amp Noise 02/14/2015

MT-032: Ideal Voltage Feedback (VFB) Op Amp 12/11/2008

MT-049: Op Amp Total Output Noise Calculations for Single-Pole System 02/14/2015

MT-052: Op Amp Noise Figure: Don't Be Misled 02/14/2015

MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR 02/14/2015

High Speed Amplifiers Selection Table 02/27/2008

EVAL-AD8390

AD8390 Evaluation Board

EVAL-AD8390

AD8390 Evaluation Board

Buy Now View Details

Product Detail

This page provides ordering information for the AD8390 Low Power, DSL CO Driver Amplifier evaluation board.

EVAL-AD8390

AD8390 Evaluation Board

VRMS/dBm/dBu/dBV calculators

A utility to convert between standard units of power measurement and signal strength.

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Power Dissipation vs Die Temp

This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.

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