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THS4631DGNRG4

更新时间： 2024-11-26 02:57:07
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美国国家半导体 - NSC 放大器输入元件光电二极管
页数 文件大小 规格书
34页 1457K
描述
HIGH-VOLTAGE, HIGH SLEW RATE, WIDEBAND FET-INPUT OPERATIONAL AMPLIFIER

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THS4631DGNRG4 数据手册

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DGN−8  
D−8  
DDA−8  
THS4631  
www.ti.com  
SLOS451B –DECEMBER 2004–REVISED AUGUST 2011  
HIGH-VOLTAGE, HIGH SLEW RATE, WIDEBAND  
FET-INPUT OPERATIONAL AMPLIFIER  
Check for Samples: THS4631  
1
FEATURES  
DESCRIPTION  
The THS4631 is a high-speed, FET-input operational  
amplifier designed for applications requiring wideband  
operation, high-input impedance, and high-power  
2
•
High Bandwidth:  
–
–
325 MHz in Unity Gain  
210 MHz Gain Bandwidth Product  
supply voltages. By providing  
a 210-MHz gain  
bandwidth product, ±15-V supply operation, and  
100-pA input bias current, the THS4631 is capable of  
simultaneous wideband transimpedance gain and  
large output signal swing. The fast 1000 V/µs slew  
rate allows for fast settling times and good harmonic  
distortion at high frequencies. Low current and  
voltage noise allow amplification of extremely  
low-level input signals while still maintaining a large  
signal-to-noise ratio.  
•
High Slew Rate:  
–
–
900 V/µs (G = 2)  
1000 V/µs (G = 5)  
•
•
•
•
•
•
•
•
Low Distortion of –76 dB, SFDR at 5 MHz  
Maximum Input Bias Current: 100 pA  
Input Voltage Noise: 7 nV/√Hz  
Maximum Input Offset Voltage: 500 µV at 25°C  
Low Offset Drift: 2.5 µV/°C  
Input Impedance: 109 || 3.9 pF  
The characteristics of the THS4631 make it ideally  
suited for use as a wideband photodiode amplifier.  
Photodiode output current is a prime candidate for  
transimpedance amplification as shown below. Other  
potential applications include test and measurement  
systems requiring high-input impedance, ADC and  
DAC buffering, high-speed integration, and active  
filtering.  
Wide Supply Range: ± 5 V to ± 15 V  
High Output Current: 95 mA  
APPLICATIONS  
•
•
•
•
•
•
•
Wideband Photodiode Amplifier  
High-Speed Transimpedance Gain Stage  
Test and Measurement Systems  
Current-DAC Output Buffer  
Active Filtering  
The THS4631 is offered in an 8-pin SOIC (D), and  
the 8-pin SOIC (DDA) and MSOP (DGN) with  
PowerPAD™ package.  
Related FET Input Amplifier Products  
SLEW  
RATE  
(V/µS)  
VOLTAGE  
NOISE  
(nV/√Hz)  
High-Speed Signal Integrator  
High-Impedance Buffer  
VS  
(V)  
GBWP  
(MHz)  
MINIMUM  
GAIN  
DEVICE  
OPA656  
OPA657  
OPA627  
THS4601  
±5  
±5  
230  
1600  
16  
290  
700  
55  
7
1
7
1
1
4.8  
4.5  
5.4  
Photodiode Circuit  
±15  
±15  
C
F
180  
100  
R
F
_
+
λ
R
L
−V  
(Bias)  
1
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.  
2
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 © 2004–2011, Texas Instruments Incorporated  
 
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