LT6300 Datasheet, PDF (1/16 Pages) Linear Technology – 500mA, 200MHz X DSL LINE DRIVER IN 16-LEAD SSOP PACKAGE

LT6300
500mA, 200MHz xDSL
Line Driver in 16-Lead SSOP Package
FEATURES
s _{Exceeds All Requirements For Full Rate,}
Downstream ADSL Line Drivers
s _{Power Enhanced 16-Lead SSOP Package}
s _{Power Saving Adjustable Supply Current}
s _{±500mA Minimum IOUT}
s _{±10.9V Output Swing, VS = ±12V, RL = 100Ω}
s _{±10.7V Output Swing, VS = ±12V, IL = 250mA}
s _{Low Distortion: – 82dBc at 1MHz, 2VP-P Into 50Ω}
s _{200MHz Gain Bandwidth}
s _{600V/µs Slew Rate}
s _{Specified at ±12V and ±5V}
U
APPLICATIO S
s _{High Efficiency ADSL, HDSL2, SHDSL Line Drivers}
s _Buffers
s _{Test Equipment Amplifiers}
s _{Cable Drivers}
DESCRIPTIO
The LT^®6300 is a 500mA minimum output current, dual op
amp with outstanding distortion performance. The ampli-
fiers are gain-of-ten stable, but can be easily compensated
for lower gains. The extended output swing allows for
lower supply rails to reduce system power. Supply current
is set with an external resistor to optimize power dissipa-
tion. The LT6300 features balanced, high impedance in-
puts with low input bias current and input offset voltage.
Active termination is easily implemented for further sys-
tem power reduction. Short-circuit protection and thermal
shutdown insure the device’s ruggedness.
The outputs drive a 100Ω load to ±10.9V with ±12V
supplies, and ±10.7V with a 250mA load. The LT6300 is a
functional replacement for the LT1739 and LT1794 in
xDSL line driver applications and requires no circuit
changes.
The LT6300 is available in the very small, thermally
enhanced, 16-lead SSOP package (same PCB area as the
SO-8 package) for maximum port density in line driver
applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
High Efficiency ±12V Supply ADSL Line Driver
12V
+IN
1000pF
110Ω
110Ω
+
1/2
LT6300
–
1k
24.9k
SHDN 12.7Ω
1:2*
1k
100Ω
–
1/2
LT6300
12.7Ω
*COILCRAFT X8390-A OR EQUIVALENT
I_SUPPLY = 10mA PER AMPLIFIER
WITH R_SHDN = 24.9k
–IN
+
SHDNREF
6300 TA01
–12V
1