AD8016_03 Datasheet, PDF (1/20 Pages) Analog Devices – Low Power, High Output Current xDSL Line Driver

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Low Power, High Output Current
xDSL Line Driver
AD8016
FEATURES
xDSL Line Driver that Features Full ADSL CO (Central
Office) Performance on ؎12 V Supplies
Low Power Operation
؎5 V to ؎12 V Voltage Supply
12.5 mA/Amp (Typ) Total Supply Current
Power Reduced Keep Alive Current of 4.5 mA/Amp
High Output Voltage and Current Drive
I_OUT = 600 mA
40 V p-p Differential Output Voltage R_L = 50 ⍀,
V_S = ؎12 V
Low Single-Tone Distortion
–75 dBc @ 1 MHz SFDR, R_L = 100 ⍀, V_O = 2 V p-p
MTPR = –75 dBc, 26 kHz to 1.1 MHz, Z_LINE = 100 ⍀,
P_LINE = 20.4 dBm
High Speed
78 MHz Bandwidth (–3 dB), G = +5
40 MHz Gain Flatness
1000 V/␮s Slew Rates
PRODUCT DESCRIPTION
The AD8016 high output current dual amplifier is designed
for the line drive interface in Digital Subscriber Line systems
such as ADSL, HDSL2, and proprietary xDSL systems. The
drivers are capable, in full-bias operation, of providing 24.4 dBm
output power into low resistance loads, enough to power a
20.4 dBm line, including hybrid insertion loss.
–75dBc
549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3
FREQUENCY (kHz)
Figure 1. Multitone Power Ratio; V_S = ±12 V, 20.4 dBm
Output Power into 100 Ω, Downstream
REV. B
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PIN CONFIGURATION
20-Lead PSOP3
24-Lead Batwing
(RP-20)
(RB-24)
+V1 1
20 +V2
+V1 1
V_OUT1 2
V_INN1 3
V_INP1 4
NC 5
NC 6
NC 7
PWDN0 8
DGND 9
–V1 10
–+ +–
AD8016
19 _VOUT2
18 _VINN2
17 _VINP2
16 NC
V_OUT1 2
V_INN1 3
V_INP1 4
AGND 5
15 NC
AGND 6
AGND 7
14 NC
AGND 8
13 PWDN1 _{PWDN0 9}
12 BIAS
DGND 10
11 –V2
–V1 11
NC = NO CONNECT
NC 12
–+ +–
AD8016
24 +V2
23 V_OUT2
22 V_INN2
21 V_INP2
20 AGND
19 AGND
18 AGND
17 AGND
16 PWDN1
15 BIAS
14 –V2
13 NC
NC = NO CONNECT
28-Lead TSSOP-EP
(RE-28-1)
NC 1
28 NC
NC 2
27 NC
NC 3
26 NC
+V_IN2 4
25 NC
–V_IN2 5
24 PWDN1
V_OUT2 6
23 BIAS
+V2 7
22 –V2
AD8016ARE
+V1 8
21 –V1
V_OUT1 9
–V_IN1 10
+V_IN1 11
20 DGND
19 NC
18 PWDN0
NC 12
17 NC
NC ¹³
16 NC
NC ¹⁴
15 NC
NC = NO CONNECT
The AD8016 is available in a low cost 24-lead SO-Batwing,
a thermally enhanced 20-lead PSOP3, and a 28-lead TSSOP-EP
with an exposed lead frame (ePAD). Operating from ±12 V
supplies, the AD8016 requires only 1.5 W of total power
dissipation (refer to the Power Dissipation section for details)
while driving 20.4 dBm of power downstream using the
xDSL hybrid in Figure 33a and Figure 33b. Two digital bits
(PWDN0, PWDN1) allow the driver to be capable of full perfor-
mance, an output keep-alive state, or two intermediate bias
states. The keep-alive state biases the output transistors enough
to provide a low impedance at the amplifier outputs for back
termination.
The low power dissipation, high output current, high output voltage
swing, flexible power-down, and robust thermal packaging enable
the AD8016 to be used as the Central Office (CO) terminal driver
in ADSL, HDSL2, VDSL, and proprietary xDSL systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
www.analog.com
Fax: [phone] © 2003 Analog Devices, Inc. All rights reserved.