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OPA2830

更新时间： 2024-11-27 02:58:15
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德州仪器 - TI 放大器
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43页 1063K
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Dual, Low-Power, Single-Supply, Wideband OPERATIONAL AMPLIFIER

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OPA2830  
www.ti.com.................................................................................................................................................. SBOS309D–AUGUST 2004–REVISED AUGUST 2008  
Dual, Low-Power, Single-Supply, Wideband  
OPERATIONAL AMPLIFIER  
1
FEATURES  
DESCRIPTION  
2
•
HIGH BANDWIDTH:  
The OPA2830 is a dual, low-power, single-supply,  
wideband, voltage-feedback amplifier designed to  
operate on a single +3V or +5V supply. Operation on  
±5V or +10V supplies is also supported. The input  
range extends below ground and to within 1.8V of the  
230MHz (G = +1), 100MHz (G = +2)  
•
•
LOW SUPPLY CURRENT: 7.8mA (VS = +5V)  
FLEXIBLE SUPPLY RANGE:  
±1.5V to ±5.5V Dual Supply  
+3V to +11V Single Supply  
positive  
supply.  
Using  
complementary  
common-emitter outputs provides an output swing to  
within 25mV of ground and +VS while driving 150Ω.  
High output drive current (75mA) and low differential  
gain and phase errors also make it ideal for  
single-supply consumer video products.  
•
INPUT RANGE INCLUDES GROUND ON  
SINGLE SUPPLY  
•
•
•
•
4.82VPP OUTPUT SWING ON +5V SUPPLY  
HIGH SLEW RATE: 500V/µs  
Low distortion operation is ensured by the high gain  
bandwidth product (100MHz) and slew rate  
(500V/µs), making the OPA2830 an ideal input buffer  
stage to 3V and 5V CMOS Analog-to-Digital  
Converters (ADCs). Unlike earlier low-power,  
single-supply amplifiers, distortion performance  
improves as the signal swing is decreased. A low  
9.2nV/√Hz input voltage noise supports wide dynamic  
range operation.  
LOW INPUT VOLTAGE NOISE: 9.2nV/√Hz  
AVAILABLE IN AN MSOP-8 PACKAGE  
APPLICATIONS  
•
•
•
•
•
•
•
SINGLE-SUPPLY ADC INPUT BUFFERS  
SINGLE-SUPPLY VIDEO LINE DRIVERS  
CCD IMAGING CHANNELS  
LOW-POWER ULTRASOUND  
PLL INTEGRATORS  
The OPA2830 is available in an industry-standard  
SO-8 package. The OPA2830 is also available in a  
small MSOP-8 package. For fixed-gain and line driver  
applications, consider the OPA2832.  
PORTABLE CONSUMER ELECTRONICS  
LOW-POWER ACTIVE FILTERS  
150pF  
RELATED PRODUCTS  
+5V  
DESCRIPTION  
SINGLES  
DUALS  
TRIPLES  
QUADS  
OPA4830  
—
µ
0.1  
F
Ω
Ω
506  
238  
Rail-to-Rail  
OPA830  
—
—
1/2  
OPA2830  
Rail-to-Rail Fixed-Gain  
OPA832 OPA2832 OPA3832  
OPA690 OPA2690 OPA3690  
+5V  
General-Purpose  
(1800V/s slew rate)  
—
100pF  
Ω
238  
Ω
750  
Low-Noise,  
High DC Precision  
Ω
5k  
5k  
OPA820 OPA2822  
—
OPA4820  
2.5V  
0.1  
VI  
BUF602  
Ω
1500  
VO  
µ
F
Ω
Ω
750  
100pF  
Ω
238  
1/2  
OPA2830  
µ
0.1  
F
Ω
Ω
506  
238  
150pF  
Single-Supply, Differential, 2nd-Order, 5MHz, Low-Pass Sallen-Key Filter  
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
All trademarks are the property of their respective owners.  
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 © 2004–2008, Texas Instruments Incorporated  
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