TS613IDW ,DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENTTS613DUAL WIDE BAND OPERATIONAL AMPLIFIERWITH HIGH OUTPUT CURRENT ■ LOW NOISE : 3nV/√Hz, 1. ..
TS615 ,DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENTELECTRICAL CHARACTERISTICSV = ±6Volts, R =910Ω,T = 25°C (unless otherwise specified) CC fb ambNot ..
TS616 ,DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENTABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit1)V±7 VCC Supply voltage 2)V±2 Vid Differen ..
TS616IDW ,DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENTELECTRICAL CHARACTERISTICSV = ±6Volts, R =910Ω,T = 25°C (unless otherwise specified) CC fb ambNot ..
TS616IDWT ,DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENTTS616DUAL WIDE BAND OPERATIONAL AMPLIFIERWITH HIGH OUTPUT CURRENT ■ LOW NOISE : 2.5nV/√Hz ■ HI ..
TS634 ,DUAL WIDE BAND OPERATIONAL AMPLIFIER FOR ADSL LINE INTERFACEapplicationswhere multiple carriers must be amplified simulta-PTTSSOP14neously with very low interm ..
UA733MJ ,Differential Video Amplifiermaximum ratings may cause permanent damage to the device. This is a stress rating only, andfunction ..
UA733MJ ,Differential Video Amplifier/sc/package.Please be aware that an important notice concerning availability, standard warranty, an ..
UA7390TC ,GROUND FAULT DETECTORAPPLICATIONS (Cont'd)
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UA739DC ,DUAL AUDIO OPERATIONAL AMPLIFIER / PREAMPLIFIERapplications from dc to 10 MHz,
where two high performance operational amplifiers
are required. I ..
UA739DC ,DUAL AUDIO OPERATIONAL AMPLIFIER / PREAMPLIFIERapplications from dc to 10 MHz,
where two high performance operational amplifiers
are required. I ..
TS613ID-TS613IDT-TS613IDW
DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENT
� LOW NOISE : 3nV/√Hz, 1.2pA/√Hz HIGH OUTPUT CURRENT : 200mA VERY LOW HARMONIC AND INTERMODU-
LATION DISTORTION HIGH SLEW RATE : 40V/μs SPECIFIED FOR 25Ω LOAD
DESCRIPTIONThe TS613 is a dual operational amplifier featur-
ing a high output current (200mA min.), large
gain-bandwidth product (130MHz) and capable of
driving a 25Ω load with a 160mA output current at
±6V power supply.
This device is particularly intended for applications
where multiple carriers must be amplified simulta-
neously with very low intermodulation products.
The TS613 is housed in a SO8 plastic package
and a SO8 Exposed-Pad plastic package.
APPLICATION UPSTREAM line driver for Asymmetric Digital
Subscriber Line (ADSL) (NT).
ORDER CODE
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
DW = Small Outline Package inExposed-Pad (SO) - also available inTape & Reel (DWT)
PIN CONNECTIONS (top view)
TS613DUAL WIDE BAND OPERATIONAL AMPLIFIER
WITH HIGH OUTPUT CURRENT
TS613
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS All voltages values, except differential voltage are with respect to network terminal. Differential voltages are non-inverting input terminal with respect to the inverting input terminal. The magnitude of input and output voltages must never exceed VCC +0.3V. An output current limitation protects the circuit from transient currents. Short-circuits can cause excessive heating.
Destructive dissipation can result from short circuit on amplifiers.
TS613ELECTRICAL CHARACTERISTICS VCC = ±6V, Tamb = 25°C (unless otherwise specified).
TS613
THERMAL INFORMATIONThe TS613 is housed in an Exposed-Pad plastic
package. As described on the figures below, this
package uses a leadframe upon which the dice is
mounted. This leadframe is exposed as a thermal
pad on the underside of the package. The thermal
contact is direct with the dice. This thermal path
provide an excellent thermal performance.
The thermal pad is electrically isolated from all
pins in the package. It can also be soldered to a
copper area of the PCB underneath the package.
Through these thermal paths within this copper ar-
ea, heat can be conducted away from the pack-
age. In this case, the copper area must be con-
INTERMODULATION DISTORTIONThe curves shown below are the measurements
results of a single operator wired as an adder with
a gain of 15dB.
The operational amplifier is supplied by a symmet-
ric ±6V and is loaded with 25Ω.
Two synthesizers (Rhode & Schwartz SME) gen-
erate two frequencies (tones) (70 & 80kHz ; 180 &
280kHz).
An HP3585 spectrum analyzer measures the spu-
rious level at different frequencies.
The curves are traced for different output levels
(the value in the X ax is the value of each tone).
The output levels of the two tones are the same.
The generators and spectrum analyzer are phase
locked to enhance measurement precision.
3rd ORDER INTERMODULATIONGain=15dB, Vcc=±6V, RL=25Ω, 2 tones 70kHz/
80kHz
2nd ORDER INTERMODULATIONGain=15dB, Vcc=±6V, RL=25Ω, 2 tones 180kHz/
280kHz, Spurious measurement @100kHz
3rd ORDER INTERMODULATION
Gain=15dB, Vcc=±6V, RL=25Ω, 2 tones 180kHz/
280kHz
TS613Closed Loop Gain and Phase vs. FrequencyGain=+2, Vcc=±6V, RL=25Ω
Closed Loop Gain and Phase vs. FrequencyGain=+11, Vcc=±6V, RL=25Ω
Maximum Output Swing Vcc=±6V, RL=25Ω
Closed Loop Gain and Phase vs. Frequency Gain=+6, Vcc=±6V, RL=25Ω
Equivalent Input Voltage NoiseGain=+100, Vcc=±6V, no load
Channel Separation (Xtalk) vs. Frequency XTalk=20Log(V2/V1), Vcc=±6V, RL=25Ω
ADSL CONCEPTAsymmetric Digital Subscriber Line (ADSL), is a
new modem technology, which converts the exist-
ing twisted-pair telephone lines into access paths
for multimedia and high speed data communica-
tions.
ADSL transmits more than 8 Mbps to a subscriber,
and can reach 1Mbps from the subscriber to the
central office. ADSL can literally transform the ac-
tual public information network by bringing mov-
ies, television, video catalogs, remote CD-ROMs,
LANs, and the Internet into homes.
An ADSL modem is connected to a twisted-pair
telephone line, creating three information chan-
nels: a high speed downstream channel (up to
1.1MHz) depending on the implementation of the
ADSL architecture, a medium speed upstream
channel (up to 130kHz) and a POTS (Plain Old
Telephone Service), split off from the modem by
filters.
THE LINE INTERFACE - ADSL Remote
Terminal (RT):The Figure1 shows a typical analog line interface
used for ADSL. The upstream and downstream
signals are separated from the telephone line by
using an hybrid circuit and a line transformer. On
this note, the accent will be made on the emission
path.
The TS613 is used as a dual line driver for the up-
stream signal.
For the remote terminal it is required to create an
ADSL modem easy to plug in a PC. In such an ap-
plication, the driver should be implemented with a
+12 volts single power supply. This +12V supply is
available on PCI connector of purchase.
The figure 2 shows a single +12V supply circuit
that uses the TS613 as a remote terminal trans-
mitter in differential mode.
The driver is biased with a mid supply (nominaly
+6V), in order to maintain the DC component of
the signal at +6V. This allows the maximum dy-
namic range between 0 and +12 V. Several op-
tions are possible to provide this bias supply (such
as a virtual ground using an operational amplifier),
such as a two-resistance divider which is the
cheapest solution. A high resistance value is re-
quired to limit the current consumption. On the
other hand, the current must be high enough to
bias the inverting input of the TS613. If we consid-
er this bias current (5μA) as the 1% of the current
through the resistance divider (500μA) to keep a
stable mid supply, two 47kΩ resistances can be
used.
The input provides two high pass filters with a
break frequency of about 1.6kHz which is neces-
sary to remove the DC component of the input sig-
nal. To avoid DC current flowing in the primary of
the transformer, an output capacitor is used. The
Figure 1 : Typical ADSL Line Interface
Figure 2 : TS613 as a differential line driver with a +12V single supply
TYPICAL APPLICATION : TS613 AS DRIVER
FOR ADSL LINE INTERFACES
by C. PRUGNEA SINGLE SUPPLY IMPLEMENTATION WITH PASSIVE
OR ACTIVE IMPEDANCE MATCHING
