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PDF AD8398 Data sheet ( Hoja de datos )
| Número de pieza | AD8398 | |
| Descripción | VDSL / Dual Line Driver | |
| Fabricantes | Analog Devices | |
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VDSL, Dual Line Driver with Shutdown
AD8398
FEATURES
Current feedback
Wide output swing
18.8 V p-p differential, (50 Ω RLOAD) from 12 V supply
20.0 V p-p differential, (100 Ω RLOAD) from 12 V supply
High output current
Linear output current of 250 mA peak
Low distortion
−100 dBc typical at 200 kHz
−76 dBc typical at 4 MHz
−66 dBc typical at 8 MHz
−56 dBc typical at 16 MHz
Low quiescent current
15 mA total
High speed
200 MHz bandwidth (AV DIFF = +2 dB, −3 dB)
900 V/μs slew rate (RLOAD = 50 Ω)
APPLICATIONS
VDSL line driver
Consumer xDSL modems
Twisted pair line drivers
GENERAL DESCRIPTION
The AD8398 comprises two high-speed current feedback
operational amplifiers. The high output current, high band-
width, and fast slew rate make it particularly well suited as the
line driver in VDSL and VDSL2 applications. The AD8398 is
available in a thermally enhanced 4 mm × 4 mm, 16-lead LFCSP.
PIN CONFIGURATION
NC 1
−IN A 2
+IN A 3
GND 4
–
+
NC = NO CONNECT
12 NC
– 11 −IN B
+ 10 +IN B
9 PD1
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_VQ
TYPICAL APPLICATION
VMID*
1/2
AD8398
1/2
*VMID =
VCC – VEE
2
AD8398
Figure 2. Typical PLC Driver Application
The AD8398 incorporates power management functionality via
two CMOS-compatible control pins, PD0 and PD1. These pins
select one of four operating modes: full power, medium power,
low power, and complete power down. In the power-down
mode, the quiescent current drops to 1.2 mA.
The AD8398 operates in the extended industrial temperature
range of −40°C to +85°C.
www.DataSheet4U.com
For more information about the AD8398 email: [email protected].
Rev. Sp0
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
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