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THS3121

更新时间： 2024-02-07 08:09:12
品牌 Logo 应用领域
德州仪器 - TI 运算放大器输出元件驱动
页数 文件大小 规格书
28页 896K
描述
LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK, OPERATIONAL AMPLIFIERS

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THS3121 数据手册

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THS3120, THS3121  
www.ti.com  
SLOS420A–SEPTEMBER 2003–REVISED NOVEMBER 2003  
LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK,  
OPERATIONAL AMPLIFIERS  
FEATURES  
DESCRIPTION  
•
Low Noise  
The THS3120 and THS3121 are low-noise,  
high-voltage, high output current drive, current-  
feedback amplifiers designed to operate over a wide  
supply range of ±5 V to ±15 V for today's high  
performance applications.  
– 1 pA/√Hz Noninverting Current Noise  
– 10 pA/√Hz Inverting Current Noise  
– 2.5 nV/√Hz Voltage Noise  
•
•
High Output Current Drive: 475 mA  
The THS3120 offers a power saving mode by provid-  
ing a power-down pin for reducing the 7-mA quiesc-  
ent current of the device, when the device is not  
active.  
High Slew Rate: 1700 V/µs (RL = 50 Ω,  
VO = 8 VPP  
)
•
•
•
Wide Bandwidth: 120 MHz (G = 2, RL = 50 Ω)  
Wide Supply Range: ±5 V to ±15 V  
These  
amplifiers  
provide  
well-regulated  
ac  
performance characteristics. Most notably, the 0.1-dB  
flat bandwidth is exceedingly high, reaching beyond  
90 MHz. The unity gain bandwidth of 130 MHz allows  
for good distortion characteristics at 10 MHz. Coupled  
with high 1700-V/µs slew rate, the THS3120 and  
THS3121 amplifiers allow for high output voltage  
swings at high frequencies.  
Power-Down Feature: (THS3120 Only)  
APPLICATIONS  
•
•
•
•
Video Distribution  
Power FET Driver  
Pin Driver  
Capacitive Load Driver  
The THS3120 and THS3121 are offered in a 8-pin  
SOIC (D), and the 8-pin MSOP (DGN) packages with  
PowerPAD™.  
DIFFERENTIAL GAIN  
vs  
NUMBER OF LOADS  
DIFFERENTIAL PHASE  
vs  
NUMBER OF LOADS  
0.07  
0.14  
0.12  
0.1  
VIDEO DISTRIBUTION AMPLIFIER APPLICATION  
Gain = 2,  
Gain = 2,  
F
S
40 IRE − NTSC and PAL,  
Worst Case ±100 IRE Ramp  
R
V
= 649 Ω,  
= ±15 V,  
F
R
V
= 649 Ω,  
= ±15 V,  
0.06  
0.05  
S
649 Ω  
649 Ω  
40 IRE − NTSC and PAL,  
Worst Case ±100 IRE Ramp  
15 V  
75-Ω Transmission Line  
75 Ω  
V
O(1)  
−
+
0.04  
0.03  
0.02  
0.08  
0.06  
0.04  
PAL  
PAL  
V
I
NTSC  
NTSC  
−15 V  
75 Ω  
n Lines  
75 Ω  
V
O(n)  
75 Ω  
0.01  
0
0.02  
0
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
75 Ω  
Number of 150 Ω Loads  
Number of 150 Ω Loads  
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003, Texas Instruments Incorporated  
1234567...28

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THS3121 替代型号

型号 品牌 替代类型 描述 数据表
THS3120 TI

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 LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK, OPERATIONAL AMPLIFIERS

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