AD8017 Datasheet, PDF (1/16 Pages) Analog Devices – Dual High Output Current, High Speed Amplifier

a
Dual High Output Current,
High Speed Amplifier
AD8017
FEATURES
High Output Drive Capability
20 V p-p Differential Output Voltage, R_L = 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, R_L = 100 ⍀, V_O = 2 V p-p
–58 dBc Highest Harmonic @ 1 MHz, I_O = 270 mA
(R_L = 10 ⍀)
High Speed
160 MHz, –3 dB Bandwidth (G = +2)
1600 V/␮s Slew Rate
APPLICATIONS
xDSL PCI Cards
Consumer DSL Modems
Line Driver
Video Distribution
PRODUCT DESCRIPTION
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.
Fabricated in ADI’s high speed XFCB process, the high band-
width 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.
Low distortion, high output voltage drive, and high output
current drive make the AD8017 ideal for use in low cost Cus-
tomer Premise End (CPE) equipment for ADSL, SDSL, VDSL
and proprietary xDSL systems.
PIN CONFIGURATION
8-Lead Thermal Coastline SOIC (SO-8)
OUT1 1
–IN1 2
+IN1 3
–V_S 4
AD8017
–
+
8 +V_S
7 OUT2
6 –IN2
5 +IN2
12
V_S = ؎6V
10
8
6
4
V_S = ؎2.5V
2
0
1
10
100
1000
LOAD RESISTANCE – ⍀
Figure 1. Output Swing vs. Load Resistance
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 sup-
plies is easily dissipated without external heatsink, other than to
place the AD8017 on a 4-layer PCB.
The AD8017 will operate over the commercial temperature
range –40°C to +85°C.
+V_S
+
R1
+
V_IN
V_REF
R_L = 100⍀
OR
135⍀
LINE
V_{OUT POWER}
IN dB
R2
–
–
N_P:N_S
TRANSFORMER
–V_S
Figure 2. Differential Drive Circuit for xDSL Applications
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 2000