AD8394 Datasheet, PDF (1/2 Pages) Analog Devices – Low Power, High Output Current, Quad Op Amp, Dual-Channel ADSL/ADSL2+ Line Driver

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
+V_IN1 3
+V_IN2 4
GND 5
I_ADJ 6
+V_IN3 7
+V_IN4 8
PD1 3, 4 9
PD0 3, 4 10
AD8394 _{20 VEE}
+
–
19 V_OUT1
18 –V_IN1
–
+
17 –V_IN2
16 V_OUT2
+
15 V_OUT3
–
14 –V_IN3
–
13 –V_IN4
+
12 V_OUT4
11 VCC
Figure 1. AD8394AREZ, 20-Lead TSSOP_EP
+
+V_IN1 1
–
+V_IN2 2
–
GND 3
+
I_ADJ 4
+
NC 5
–
+V_IN3 6
–
+V_IN4 7
+
19 –V_IN1
18 –V_IN2
17 V_OUT2
16 V_OUT3
15 –V_IN3
14 –V_IN4
13 V_OUT4
Figure 2. AD8394ACPZ, 24-Lead LFCSP, 4 mm × 5 mm
For more information about the AD8394 email: [e-mail].
Rev. Sp0
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