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THS4509_14

更新时间： 2024-02-14 12:40:51
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 1003K
描述
WIDEBAND, LOW-NOISE, LOW-DISTORTION, FULLY-DIFFERENTIAL AMPLIFIER

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THS4509_14 数据手册

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THS4520  
www.ti.com  
SLOS503A–SEPTEMBER 2006–REVISED OCTOBER 2006  
WIDEBAND, LOW NOISE, LOW DISTORTION FULLY DIFFERENTIAL AMPLIFIER  
WITH RAIL-TO-RAIL OUTPUTS  
FEATURES  
DESCRIPTION  
•
Fully Differential Architecture With  
Rail-to-Rail Outputs  
The THS4520 is  
a wideband, fully differential  
operational amplifier designed for 5-V data  
acquisition systems. It has very low noise at  
2 nV/√Hz, and low harmonic distortion of –115 dBc  
HD2 and –123 dBc HD3 at 100 kHz with 8 VPP, and  
1-kΩ load. The slew rate is 570 V/µs, and with a  
settling time of 7 ns to 0.1% (2-V step), it is ideal for  
data acquisition applications. It is designed for unity  
gain stability.  
•
•
•
•
•
•
•
•
•
•
Centered Input Common-mode Range  
Minimum Gain of 1 V/V (0 dB)  
Bandwidth: 620 MHz  
Slew Rate: 570 V/µs  
0.1% Settling Time: 7 ns  
HD2: –115 dBc at 100 kHz, VOD = 8 VPP  
HD3: –123 dBc at 100 kHz, VOD = 8 VPP  
Input Voltage Noise: 2 nV/√Hz (f >10 kHz)  
Output Common-Mode Control  
Power Supply:  
To allow for dc coupling to ADCs, its unique output  
common-mode control circuit maintains the output  
common-mode voltage within 0.25 mV offset (typical)  
from the set voltage. The common-mode set point  
defaults to mid-supply by internal circuitry, which  
may be over-driven from an external source.  
– Voltage: 3.3 V (±1.5 V) to 5 V (±2.5 V)  
– Current: 14.2 mA  
The input and output are optimized for best  
performance with their common-mode voltages set to  
mid-supply. Along with high performance at low  
power supply voltage, this makes for extremely high  
performance single supply 5-V and 3.3-V data  
acquisition systems.  
•
Power-Down Capability: 15 µA  
APPLICATIONS  
•
•
•
•
•
5-V and 3.3-V Data Acquisition Systems  
High Linearity ADC Amplifier  
Wireless Communication  
Test and Measurement  
Voice Processing Systems  
The THS4520 is offered in a Quad 16-pin leadless  
QFN package (RGT), and is characterized for  
operation over the full industrial temperature range  
from –40°C to 85°C.  
V
IN  
487 W  
499 W  
2.5 V  
From  
50 W  
Source  
RELATED PRODUCTS  
53.6 W  
BW  
Slew Rate  
THD  
(dBc)  
VN  
(nV/Hz)  
V
OUT  
487 W  
487 W  
Device  
1:1  
(MHZ)  
(V/µsec)  
To 50 W  
Test  
Equipment  
56.3 W  
THS4520  
487 W  
THS4509 2000  
6600  
2800  
52  
-102 at 10 MHz  
-82 at 8 MHz  
1.9  
7
THS4500  
THS4130  
370  
150  
0.22 mF  
49.9 W  
CM  
53.6 W  
Open  
-97 at 250 kHz  
1.3  
−2.5 V  
499 W  
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006, Texas Instruments Incorporated  
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