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■ LOW NOISE : 3.2nV/√Hz, 1.5pA/√Hz
■ HIGH OUTPUT CURRENT : 160mA min.
■ VERY LOW HARMONIC AND INTERMODU-
LATION DISTO RTION
■ HIGH SLEW RATE : 40V/µs
■ SPECIFIED FOR 25Ω LOAD
DESCRIPTION
This device is particularly intended for applications
where multiple carriers must be amplified simultaneously with very low intermodulation products. It
has been mainly designed to fit with ADSL
chip-set such as ST70134 or ST70135.
The TS634 is a high output current dual operational amplifier, with a large gain-band width product
(130MHz) and capable of driving a 25Ω load at
12V power supply. The TS634 is fitted out with
Power Down function in order to decrease the
consumption.
The TS634 is housed in SO20 batwing plastic
package for a very low thermal resistance.
APPLICATION
■ UPSTREAM line driver for Asymmetric Digital
Subs criber Line (ADSL) (NT).
ORDER CODE
D=Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part
Number
Temperature
Range
Package
DP
TS634ID -40, +85°C
•
D
SO20 Batwing
(Plastic Micropackage)
Vcc+ 1
Inverting input 1
Non-inver ting i nput 1
Vcc+ 2
Vcc -
Vcc -
Power Down 2
Non-Inverting i nput 2
Inverting input 2
GND
Vcc -
Vcc -
Vcc -
Vcc -
Vcc -
Vcc -
Power Down 1
Vcc-
Output 1
Output 2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
_
+
_
+
SO20 batwing - To p V iew
Thermal Heat Tabs
connected to -Vcc
Thermal Heat Tabs
connected to -Vcc
TS634
DUAL WIDE BAND OPERATIONAL AMPLIFIER
FOR ADSL LINE INTERFACE
March 2003
TS634
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ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
APPLICATION: ADSL LINE INTERFACE
Symbol Parameter Value Unit
V
CC
Supply voltage
1)
±7 V
V
id
Differential Input Voltage
2)
±2 V
V
in
Input Voltage Range
3)
±6 V
T
oper
Operating Free Air Temperature Range TS634TS634ID -40 to +85 °C
T
std
Storage Temperature -65 to +150 °C
T
j
Maximum Junction Temperature 150 °C
SO20-Batwing
R
thjc
Thermal Resistance Junction to Case 25 °C/W
R
thja
Thermal Resistance Junction to Ambient Area 45 °C/W
P
max.
Maximum Power Dissipation (@25°C) 2.7 W
1. All voltages values, except differential voltage are with respect to network terminal.
2. Differential voltages are non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of input and output voltages must never exceed V
CC
+0.3V.
Symbol Parameter Value Unit
V
CC
Supply Voltage ±2.5 to ±6 V
V
icm
Common Mode Input Voltage
(V
CC
) +2 to (V
CC
+
) -1
V
twiste d-pair
telephone
line
HYBRID
CIRCUIT
LP filter
TS634
Line Driver
reception
(analog signal)
emission
(analog
signal)
upstream
downstream
ST70135 ST70134
TS636
Receiver
VGA
ASCOT ADSL
CHIP-SET
Power Down
4-bit Gain C ontrol
TX
RX
TS634
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ELECTRICAL CHARACTERISTICS VCC = ±6Volts, T
amb
= 25°C (unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
DC PERFORMANCE
∆
V
io
Differential Input Offset Voltage
T
amb
= 25°C
6mV
I
io
Input Offset Current
T
amb
0.2 3
µ
A
T
min.
< T
amb
< T
max.
5
I
ib
Input Bias Current
T
amb
515
µ
A
T
min.
< T
amb
< T
max.
30
CMR Common Mode Rejection Ratio
V
ic
= 2V to 2V, T
amb
90 108
dB
T
min.
< T
amb
< T
max.
70
SVR Supply Voltage Rejection Ratio
V
ic
= ±6V to ±4V, T
amb
70 88
dB
T
min.
< T
amb
< T
max.
50
I
CC
Total Supply Current per Operator
No load, V
out
= 0
14 mA
DYNAMIC PERFORMANCE
V
OH
High Level Output Voltage
I
out
= 160mA
R
L
connected to GND
4 4.5 V
V
OL
Low Level Output Voltage
I
out
= 160mA
R
L
connected to GND
-4.5 -4 V
A
VD
Large Signal Voltage Gain
V
out
= 7V peak
R
L
= 25Ω, T
amb
6500 11000
V/V
T
min.
< T
amb
< T
max.
5000
GBP Gain Bandwidth Product
A
VCL
= +7, f = 20MHz
R
L
= 100
Ω
130 MHz
SR Slew Rate
A
VCL
= +7, RL = 50
Ω
23 40 V/µs
I
sink
I
source
Output Current
V
id
= ±1V, T
amb
160
mA
T
min.
< T
amb
< T
max.
140
Φ
M14
Phase Margin at A
VCL
= 14dB RL = 25Ω//15pF
60 °
Φ
M6
Phase Margin at A
VCL
= 6dB RL = 25Ω//15pF
40 °
NOISE AND DISTORTION
en Equivalent Input Noise Voltage f = 100kHz 3.2 nV/√Hz
in Equivalent Input Noise Current f = 100kHz 1.5 pA/√Hz
THD Total Harmonic Distortion
V
out
= 4Vpp, f = 100kHz
A
VCL
= -10
R
L
= 25Ω//15pF
-69 dB
IM2
-10
2nd Order Intermodulation Product
F1 = 80kHz, F2 = 70kHz
V
out
= 8Vpp, A
VCL
= -10
Load = 25Ω//15pF
-77 dBc
IM3
-10
3rd Order Intermodulation Produ ct
F1 = 80kHz, F2 = 70kHz
V
out
= 8Vpp, A
VCL
= -10
Load = 25Ω//15pF
-77 dBc