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AD8018AR
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MFG:AD Package Cooled:SMD-8

AD8 Series Datasheet download

Five Points

Part Number: AD8018AR

MFG: AD

Package Cooled: SMD-8

Description: The AD8018 is intended for use in single-supply (5 V) xDSL modems where high-output current and low distortion are esse...

AD8018AR General Description

The AD8018 is intended for use in single-supply (5 V) xDSL modems where high-output current and low distortion are essential to achieve maximum reach. The dual high-speed amplifiers are capable of driving low distortion signals to within 0.5 V of the power supply rail. Each amplifier can drive 400 mA of current into 10 (differential) while maintaining 82 dBc out-of-band SFDR. The AD8018 is available with flexible standby and shutdown modes. Two digital logic bits (PWDN1 and PWDN0) may be used to put the AD8018 into one of three modes: full power, standby (outputs low impedance), and shutdown (outputs high impedance).

Fabricated with ADI's high-speed XFCB (eXtra Fast Complementary Bipolar) process, the high bandwidth and fast slew rate of the AD8018 keep distortion to a minimum, while dissipating a minimum of power. The quiescent current of the AD8018 is a low 9 mA/amplifier. The AD8018 drive capability comes in compact 8-lead Thermal Coastline SOIC and 14-lead TSSOP packages. Low-distortion, rail-to-rail output voltage, and highcurrent drive in small packages make the AD8018 ideal for use in low-cost USB, PCMCIA, and PCI Customer Premise Equipment for ADSL, SDSL, VDSL, and proprietary xDSL systems. Both models will operate over the temperature range 40°C to
+85°C.

AD8018AR Maximum Ratings

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Internal Power Dissipation²
Small Outline Package (R) . . . . . . . . . . . . . . . . . . . .......650 mW
TSSOP Package (RU) . . . . . . . . . . . . . . . . . . . . . .......... 565 mW
Input Voltage (Common-Mode) . . . . . . . . . . . . . . . . . . . .... ±V_S
Logic Voltage, PWDN0, 1 . . . . . . . . . . . . . . . . . . . . . . . . ... ±V_S
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .±1.6 V
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . .....Observe Power Derating Curves
Storage Temperature Range RU, R . . . . . . . 65°C to +125°C
Operating Temperature Range . . . . . . . . . . . 40°C to +85°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . . 300°C

AD8018AR Features

Ideal xDSL Line Drive Amplifier for USB, PCMCIA, or PCI-Based Customer Premise Equipment (CPE). The AD8018 provides maximum reach on 5 V supply, driving 16 dBm of power into a back-terminated, transformer-coupled 100 while maintaining 82 dBc of out-of-band SFDR.
Rail-to-Rail Output Voltage and High Output Current Drive.
400 mA Output Current into Differential Load of 10 @ 8 V p-p
Low Single-Tone Distortion
86 dBc Worst Harmonic, 6 V p-p into Differential 10 @ 100 kHz
Low Noise
4.5 nV/Hz Voltage Noise Density, 100 kHz
Out-of-Band SFDR = 82 dBc, 144 kHz to 500 kHz, R_LOAD = 12.5 , P_LINE = 13 dBm
Low-Power Operation
3.3 V to 8 V Power Supply Range
   Two Logic Bits for Standby and Shutdown
   Low Supply Current of 9 mA/Amplifier (Typ)
Current Feedback Amplifiers
High Speed
   130 MHz Bandwidth (3 dB)
   300 V/s Slew Rate

AD8018AR Typical Application

xDSL USB, PCI, PCMCIA Cards
Consumer DSL Modems
Twisted Pair Line Driver

AD8018AR Connection Diagram

AD8018AR datasheet

AD8018AR
PDF/DataSheet Download

Datasheet: AD8018AR
File Size: 348141 KB
Manufacturer: AD [Analog Devices]
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