參數(shù)資料
型號(hào): THS3122CDDAR
廠商: Texas Instruments, Inc.
英文描述: LOW-NOISE, HIGH-SPEED, 450 mA CURRENT FEEDBACK AMPLIFIERS
中文描述: 低噪聲,高速,450毫安電流反饋放大器
文件頁數(shù): 1/20頁
文件大小: 664K
代理商: THS3122CDDAR
SLOS382 SEPTEMBER 2001
1
www.ti.com
FEATURES
Low Noise
2.9 pA/
Hz Noninverting Current Noise
10.8 pA/
Hz Inverting Current Noise
2.2 nV/
Hz Voltage Noise
High Output Current, 450 mA
High Speed
128 MHz , 3 dB BW(R
L
= 50
, R
F
= 470
)
1550 V/
μ
s Slew Rate (G = 2, R
L
= 50
)
Wide Output Swing
26 V
PP
Output Voltage, R
L
= 50
Low Distortion
-80 dBc (1 MHz, 2 V
PP
, G = 2)
Low Power Shutdown Mode (THS3125)
370-
μ
A Shutdown Supply Current
Standard SOIC, SOIC PowerPAD
, and
TSSOP PowerPAD Package
APPLICATIONS
Video Distribution
Instrumentation
Line Drivers
Motor Drivers
Piezo Drivers
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%.
The high output drive capability of the THS3122/5
enables the devices to drive 50-
loads with low
distortion over a wide range of output voltages:
80 dBc THD at 2 V
PP
75 dBc THD at 8 V
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
μ
A. The
THS3122/5 are packaged in a standard SOIC, SOIC
PowerPAD
, and TSSOP PowerPAD packages.
1
10
100
0.01
0.1
1
10
100
f Frequency kHz
I
VOLTAGE NOISE AND CURRENT NOISE
vs
FREQUENCY
V
p
H
n
H
In
In+
Vn
VCC =
±
5 V to
±
15 V
TA = 25
°
C
THS3122
SOIC (D) AND
SOIC PowerPAD
(DDA) PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
1 OUT
1 IN
1 IN+
V
CC
V
CC+
2 OUT
2 IN
2 IN+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1 OUT
1 IN
1 IN+
V
CC
N/C
GND
N/C
V
CC+
2 OUT
2 IN
2 IN+
N/C
SHUTDOWN
N/C
THS3125
SOIC (D) AND
TSSOP PowerPAD
(PWP) PACKAGE
(TOP VIEW)
PowerPAD is a trademark of Texas Instruments.
Copyright
2001, Texas Instruments Incorporated
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.
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