ꢀꢁ ꢂ ꢃꢄ ꢅꢅ
ꢀꢁ ꢂ ꢃꢄ ꢅꢆ
SLOS382 − SEPTEMBER 2001
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D
Line Drivers
FEATURES
D
D
Motor Drivers
Piezo Drivers
D
Low Noise
− 2.9 pA/√Hz Noninverting Current Noise
− 10.8 pA/√Hz Inverting Current Noise
− 2.2 nV/√Hz Voltage Noise
DESCRIPTION
The THS3122/5 are low-noise, high-speed current
feedback amplifiers, with high output current drive. This
makes them ideal for any application that requires low
distortion over a wide frequency with heavy loads. The
THS3122/5 can drive four serially terminated video
lines while maintaining a differential gain error less than
0.03%.
D
D
High Output Current, 450 mA
High Speed
− 128 MHz , −3 dB BW(R = 50 Ω, R = 470 Ω)
L
F
− 1550 V/µs Slew Rate (G = 2, R = 50 Ω)
L
D
D
D
D
Wide Output Swing
− 26 V Output Voltage, R = 50 Ω
PP
L
Low Distortion
The high output drive capability of the THS3122/5
enables the devices to drive 50-Ω loads with low
distortion over a wide range of output voltages:
− -80 dBc (1 MHz, 2 V , G = 2)
PP
Low Power Shutdown Mode (THS3125)
− 370-µA Shutdown Supply Current
Standard SOIC, SOIC PowerPAD, and
TSSOP PowerPAD Package
−80 −dBc THD at 2 V
−75 −dBc THD at 8 V
PP
PP
The THS3122/5 can operate from 5 V to 15 V supply
voltages while drawing as little as 7.2 mA of supply
current per channel. They offer a low power shutdown
mode, reducing the supply current to only 370 µA. The
THS3122/5 are packaged in a standard SOIC, SOIC
PowerPAD, and TSSOP PowerPAD packages.
APPLICATIONS
D
Video Distribution
Instrumentation
D
VOLTAGE NOISE AND CURRENT NOISE
vs
THS3125
SOIC (D) AND
THS3122
SOIC (D) AND
FREQUENCY
100
V
T
A
=
5 V to 15 V
SOIC PowerPAD (DDA) PACKAGE
TSSOP PowerPAD (PWP) PACKAGE
CC
= 25°C
(TOP VIEW)
(TOP VIEW)
I
n−
1 OUT
1 IN−
1 IN+
V
CC+
1
2
3
4
8
7
6
5
1 OUT
1 IN−
1 IN+
V
CC+
1
2
3
4
5
6
7
14
2 OUT
2 IN−
2 IN+
13 2 OUT
12 2 IN−
11 2 IN+
I
10
n+
V
CC−
V
CC−
N/C
10
9
V
N/C
n
GND
N/C
SHUTDOWN
N/C
8
1
0.01
0.1
1
10
100
f − Frequency − kHz
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
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Copyright 2001, Texas Instruments Incorporated
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ꢣ ꢧ ꢤ ꢣꢝ ꢞꢱ ꢠꢟ ꢢ ꢪꢪ ꢨꢢ ꢡ ꢢ ꢔ ꢧ ꢣ ꢧ ꢡ ꢤ ꢬ
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1
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