VDSL, Dual Line Driver with Shutdown
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
−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
200 MHz bandwidth (AV DIFF = +2 dB, −3 dB)
900 V/μs slew rate (RLOAD = 50 Ω)
VDSL line driver
Consumer xDSL modems
Twisted pair line drivers
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.
−IN A 2
+IN A 3
NC = NO CONNECT
– 11 −IN B
+ 10 +IN B
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_VQ
VCC – VEE
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.
For more information about the AD8398 email: email@example.com.
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
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