LT6301 Datasheet, PDF (1/16 Pages) Linear Technology – Dual 500mA, Differential xDSL Line Driver in 28-Lead TSSOP Package

LT6301
Dual 500mA, Differential xDSL
Line Driver in 28-Lead TSSOP Package
FEATURES
s _{Drives Two Lines from One Package}
s _{Exceeds All Requirements For Full Rate,}
Downstream ADSL Line Drivers
s _{Power Enhanced 28-Lead TSSOP Package}
s _{Power Saving Adjustable Supply Current}
s _{±500mA Minimum IOUT}
s _{±11.1V Output Swing, VS = ±12V, RL = 100Ω}
s _{±10.9V 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 Density ADSL Central Office Line Drivers}
s _{High Efficiency ADSL, HDSL2, SHDSL Line Drivers}
s _Buffers
s _{Test Equipment Amplifiers}
s _{Cable Drivers}
DESCRIPTIO
The LT^®6301 is a 500mA minimum output current, quad
op amp with outstanding distortion performance. The
amplifiers are gain-of-ten stable, but can be easily com-
pensated for lower gains. The extended output swing al-
lows for lower supply rails to reduce system power. Supply
current is set with an external resistor to optimize power
dissipation. The LT6301 features balanced, high imped-
ance inputs with low input bias current and input offset
voltage. Active termination is easily implemented for fur-
ther system power reduction. Short-circuit protection and
thermal shutdown ensure the device’s ruggedness.
The outputs drive a 100Ω load to ±11.1V with ±12V
supplies, and ±10.9V with a 250mA load. The LT6301 is a
functional replacement for the LT1739 and LT1794 in
xDSL line driver applications and requires no circuit
changes.
The LT6301 is available in the very small, thermally
enhanced, 28-lead TSSOP 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
+
1/4
LT6301
–
1k
1k
24.9k
SHDN 12.7Ω
TWO COMPLETE ADSL LINE DRIVERS
PROVIDED WITH ONE LT6301 PACKAGE
1:2*
100Ω
–
1/4
LT6301
12.7Ω
*COILCRAFT X8390-A OR EQUIVALENT
I_SUPPLY = 10mA PER AMPLIFIER
WITH R_SHDN = 24.9k
–IN
+
SHDNREF
6301 TA01
–12V
sn6301 6301f
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