a
Dual High Output Current,
High Speed Amplifier
AD8017
FEATURES
High Output Drive Capability
20 V p-p Differential Output Voltage, RL = 50 ⍀
10 V p-p Single-Ended Output Voltage While
Delivering 200 mA to a 25 ⍀ Load
Low Power Operation
5 V to 12 V Voltage Supply @ 7 mA/Amplifier
Low Distortion
–78 dBc @ 500 kHz SFDR, RL = 100 ⍀, VO = 2 V p-p
–58 dBc Highest Harmonic @ 1 MHz, IO = 270 mA
(RL = 10 ⍀)
High Speed
160 MHz, –3 dB Bandwidth (G = +2)
1600 V/s Slew Rate
PIN CONFIGURATION
8-Lead Thermal Coastline SOIC (SO-8)
–IN1 2
–VS 4
OUTPUT VOLTAGE SWING – V p-p
The AD8017 is a low cost, dual high speed amplifier capable of
driving low distortion signals to within 1.0 V of the supply rail.
It is intended for use in single supply xDSL systems where low
distortion and low cost are essential. The amplifiers will be able
to drive a minimum of 200 mA of output current per amplifier.
The AD8017 will deliver –78 dBc of SFDR at 500 kHz, required
for many xDSL applications.
OUT2
6
–IN2
5
+IN2
VS = ؎6V
10
8
6
4
VS = ؎2.5V
2
0
10
100
LOAD RESISTANCE – ⍀
1
1000
Figure 1. Output Swing vs. Load Resistance
Fabricated in ADI’s high speed XFCB process, the high bandwidth
and fast slew rate of the AD8017 keep distortion to a minimum, while
dissipating a minimum amount of power. The quiescent current of
the AD8017 is 7 mA/amplifier.
The AD8017 will operate over the commercial temperature
range –40°C to +85°C.
+VS
7
–
+
8
12
PRODUCT DESCRIPTION
The AD8017 drive capability comes in a very compact form.
Utilizing ADI’s proprietary Thermal Coastline SOIC package,
the AD8017’s total (static and dynamic) power on 12 V supplies
is easily dissipated without external heat sink, other than to place
the AD8017 on a 4-layer PCB.
–
+
+IN1 3
APPLICATIONS
xDSL PCI Cards
Consumer DSL Modems
Line Driver
Video Distribution
Low distortion, high output voltage drive, and high output current
drive make the AD8017 ideal for use in low cost Customer Premise
End (CPE) equipment for ADSL, SDSL, VDSL and proprietary
xDSL systems.
AD8017
OUT1 1
+VS
+
R1
RL = 100⍀
OR
135⍀
VREF
VIN
+
LINE
VOUT POWER
IN dB
R2
–
NP:NS
TRANSFORMER
–
–VS
Figure 2. Differential Drive Circuit for xDSL Applications
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
