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PDF AD8394 Data sheet ( Hoja de datos )
| Número de pieza | AD8394 | |
| Descripción | Dual-Channel ADSL/ADSL2+ Line Driver | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Low Power, High Output Current, Quad Op
Amp, Dual-Channel ADSL/ADSL2+ Line Driver
AD8394
FEATURES
4 current feedback, high output current amplifiers
Ideal for use as ADSL/ADSL2+ dual-channel, central office
(CO) line drivers
Dual-supply operation from ±6 V to ±12 V
Single-supply operation from 12 V to 24 V
Low power consumption
700 mW internal power dissipation while driving 20.4 dBm
ADSL2+ signal (CF = 5.5)
3 active power modes plus shutdown
Low leakage current in shutdown mode
High output voltage and current drive
Low distortion
MTPR down to −70 dBc
High speed: 300 V/μs slew rate
APPLICATIONS
ADSL/ADSL2+ CO line drivers
xDSL line drives
High output current, low distortion amplifiers
DAC output buffers
GENERAL DESCRIPTION
The AD8394 is comprised of four high output current, low
power consumption operational amplifiers. It is particularly well
suited for the CO driver interface in digital subscriber line systems,
such as ADSL and ADSL2+. The driver can deliver 20.4 dBm to
a line, yet compensates for losses due to hybrid insertion and
back termination resistors. In addition, the low distortion, fast
slew rate, and high output current capability make the AD8394
ideal for other applications, such as medical instrumentation,
DAC output drivers, and other high peak current circuits. Four
bias modes are selectable via two digital inputs (PD0 and PD1).
The AD8394 is available in two thermally enhanced packages,
a 20-lead TSSOP_EP (AD8394AREZ) and a 4 mm × 5 mm
24-lead LFCSP (AD8394ACPZ).
PIN CONFIGURATIONS
PD0 1, 2 1
PD1 1, 2 2
+VIN1 3
+VIN2 4
GND 5
IADJ 6
+VIN3 7
+VIN4 8
PD1 3, 4 9
PD0 3, 4 10
AD8394 20 VEE
+
– 19 VOUT1
18 –VIN1
–
+ 17 –VIN2
16 VOUT2
+ 15 VOUT3
– 14 –VIN3
– 13 –VIN4
+ 12 VOUT4
11 VCC
Figure 1. AD8394AREZ, 20-Lead TSSOP_EP
+VIN1
+VIN2
GND
1
2
3
IADJ 4
NC 5
+VIN3 6
+VIN4 7
+
–
–
+
+
–
–
+
19 –VIN1
18 –VIN2
17 VOUT2
16 VOUT3
15 –VIN3
14 –VIN4
13 VOUT4
Figure 2. AD8394ACPZ, 24-Lead LFCSP, 4 mm × 5 mm
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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