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LT1739IFE#PBF

Description
ADSL Driver Dual 20-Pin TSSOP EP Tube
File Size275KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1739IFE#PBF Overview

ADSL Driver Dual 20-Pin TSSOP EP Tube

LT1739IFE#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.33.00.01
TypeDriver
Amplifier TopologyVoltage Feedback Amplifier
Number of Drivers/Receivers2
JTAG SupportNo
Typical Slew Rate (V/us)600
Minimum CMRR (dB)74
Output TypeDifferential
Maximum Dual Supply Voltage (V)±13.5
Maximum Supply Current (A)0.015
Maximum High Drive Current (mA)1200(Typ)
Power Supply TypeDual
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
PackagingTube
Pin Count20
Supplier PackageTSSOP EP
Standard Package NameSOP
MountingSurface Mount
Package Height1.05(Max)
Package Length6.6(Max)
Package Width4.5(Max)
PCB changed20
Lead ShapeGull-wing
LT1739
Dual 500mA, 200MHz
xDSL Line Driver Amplifier
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
3mm
×
4mm High Power DFN Package
Exceeds All Requirements For Full Rate,
Downstream ADSL Line Drivers
±500mA
Minimum I
OUT
±11.1V
Output Swing, V
S
=
±12V,
R
L
= 100Ω
±10.9V
Output Swing, V
S
=
±12V,
I
L
= 250mA
Low Distortion: – 82dBc at 1MHz, 2V
P-P
Into 50Ω
Power Saving Adjustable Supply Current
Power Enhanced TSSOP-20 Small Footprint Package
200MHz Gain Bandwidth
600V/µs Slew Rate
Specified at
±12V
and
±5V
The LT
®
1739 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 LT1739 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
±11.1V
with
±12V
supplies, and
±10.9V
with a 250mA load. The LT1739 is a
pin-for-pin replacement for the LT1794 in xDSL line driver
applications and requires no circuit changes.
The LT1739 is available in the very small, thermally
enhanced, 3mm
×
4mm DFN package or a 20-lead TSSOP
for maximum port density in central office line driver
applications. For a dual version of the LT1739, see the
LT6301 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
High Density ADSL Central Office Line Drivers
High Efficiency ADSL, HDSL2, G.lite,
SHDSL Line Drivers
Buffers
Test Equipment Amplifiers
Cable Drivers
TYPICAL APPLICATIO
12V
R
BIAS
24.9k
SHDN
High Efficiency
±12V
Supply ADSL Central Office Line Driver
3mm
×
4mm DFN Package
Bottom View
12.7Ω
EXPOSED
THERMAL
PAD
+IN
+
1/2
LT1739
1k
110Ω
1000pF
1:2*
0.8
mm
100Ω
110Ω
1k
1739 TA01
173
9T
A0
2
1/2
LT1739
–IN
12.7Ω
SHDNREF
*COILCRAFT X8390-A OR EQUIVALENT
I
SUPPLY
= 10mA PER AMPLIFIER
WITH R
BIAS
= 24.9k
+
–12V
U
3m
m
m
4m
1739fas, sn1739
U
U
1

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Description ADSL Driver Dual 20-Pin TSSOP EP Tube ADSL Driver Dual 20-Pin TSSOP EP Tube ADSL Driver Dual 20-Pin TSSOP EP T/R ADSL Driver Dual 20-Pin TSSOP EP ADSL Driver Dual 12-Pin DFN EP Tube ADSL Driver Dual 12-Pin DFN EP T/R ADSL Driver Dual 20-Pin TSSOP EP T/R ADSL Driver Dual 20-Pin TSSOP EP T/R ADSL Driver Dual 12-Pin DFN EP Tube ADSL Driver Dual 12-Pin DFN EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant Compliant Compliant Not Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Unconfirmed Active Active Unconfirmed Active Active Active
Type Driver Driver Driver Driver Driver Driver Driver Driver Driver Driver
Amplifier Topology Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier Voltage Feedback Amplifier
Number of Drivers/Receivers 2 2 2 2 2 2 2 2 2 2
JTAG Support No No No No No No No No No No
Typical Slew Rate (V/us) 600 600 600 600 600 600 600 600 600 600
Minimum CMRR (dB) 74 74 74 74 74 74 74 74 74 74
Output Type Differential Differential Differential Differential Differential Differential Differential Differential Differential Differential
Maximum Dual Supply Voltage (V) ±13.5 ±13.5 ±13.5 ±13.5 ±13.5 ±13.5 ±13.5 ±13.5 ±13.5 ±13.5
Maximum Supply Current (A) 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015
Maximum High Drive Current (mA) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ) 1200(Typ)
Power Supply Type Dual Dual Dual Dual Dual Dual Dual Dual Dual Dual
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40 -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85 85 85 85 85 85
Pin Count 20 20 20 20 12 12 20 20 12 12
Supplier Package TSSOP EP TSSOP EP TSSOP EP TSSOP EP DFN EP DFN EP TSSOP EP TSSOP EP DFN EP DFN EP
Standard Package Name SOP SOP SOP SOP DFN DFN SOP SOP DFN DFN
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max) 0.75(Max) 0.75(Max) 1.05(Max) 1.05(Max) 0.75(Max) 0.75(Max)
Package Length 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max) 4 4 6.6(Max) 6.6(Max) 4 4
Package Width 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max) 3 3 4.5(Max) 4.5(Max) 3 3
PCB changed 20 20 20 20 12 12 20 20 12 12
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing No Lead No Lead Gull-wing Gull-wing No Lead No Lead
HTS 8542.33.00.01 8542.33.00.01 8542.33.00.01 - 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01
Packaging Tube Tube Tape and Reel - Tube Tape and Reel Tape and Reel Tape and Reel Tube Tape and Reel
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