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THS4120 PDF预览

THS4120

更新时间： 2024-10-01 22:53:07
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
23页 493K
描述
HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

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THS4120 数据手册

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THS4120  
THS4121  
www.ti.com  
SLOS319D–FEBRUARY 2001–REVISED OCTOBER 2004  
HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS  
FEATURES  
KEY APPLICATIONS  
•
Simple Single-Ended To Differential  
Conversion  
•
High Performance  
– 100 MHz, –3 dB Bandwidth  
– 50 V/µs Slew Rate  
•
Differential ADC Driver/Differential  
Antialiasing  
– 75 dB Total Harmonic Distortion at 1 MHz  
(VO = 2 VPP  
•
•
Differential Transmitter and Receiver  
Output Level Shifter  
)
– 5.4 nV/√Hz Input-Referred Noise (10 kHz)  
•
•
Differential Input/Differential Output  
THS4121  
THS4120  
– Balanced Outputs Reject Common-Mode  
Noise  
D, DGN, OR DGK PACKAGE  
D, DGN, OR DGK PACKAGE  
(TOP VIEW)  
(TOP VIEW)  
– Differential Reduced Second Harmonic  
Distortion  
V
IN−  
V
IN+  
V
IN−  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
IN+  
V
OCM  
NC  
V
OCM  
PD  
GND  
V
Power Supply Range  
– VDD = 3.3 V  
V
DD  
OUT+  
GND  
V
DD  
OUT+  
V
V
OUT−  
V
OUT−  
DESCRIPTION  
The THS412x is one in a family of fully differen-  
tial-input, differential-output devices fabricated using  
Texas Instruments' state-of-the-art submicron CMOS  
process.  
HIGH-SPEED DIFFERENTIAL I/O FAMILY  
NUMBER OF  
DEVICE  
POWERDOWN  
CHANNELS  
THS4120(1)  
THS4121  
1
1
Yes  
–
The THS412x consists of a true fully-differential  
signal path from input to output. This results in  
excellent common-mode noise rejection and  
improved total harmonic distortion.  
(1) For proper functiionality, an external 10-kΩ pullup resistor is  
required between the PD pin and the positive supply.  
RELATED DEVICES  
SINGLE SUPPLY  
VOLTAGE RANGE  
SPLIT SUPPLY  
VOLTAGE RANGE  
DEVICE(1)  
DESCRIPTION  
THS413x  
THS414x  
THS415x  
150 MHz, 51 V/µs, 1.3 nV/√Hz  
160 MHz, 450 V/µs, 6.5 nV/√Hz  
150 MHz, 650 V/µs, 7.6 nV/√Hz  
5 V to 30 V  
±2.5 to ±15  
±2.5 to ±15  
±2.5 to ±15  
5 V to 30 V  
5 V to 30 V  
(1) See the TI Web site for additional high-speed amplifier devices.  
TYPICAL A/D APPLICATION CIRCUIT  
3.3 V  
V
DD  
AV  
DV  
V
V
IN  
DD  
DD  
−
+
A
A
IN  
V
OCM  
IN  
DIGITAL  
OUTPUT  
+
−
AV  
SS  
ref  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2001–2004, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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