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OPA211

更新时间： 2024-11-19 04:11:47
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德州仪器 - TI 运算放大器
页数 文件大小 规格书
9页 329K
描述
1.1nV/Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package

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OPA211 数据手册

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OPA2211  
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SBOS377A–OCTOBER 2006–REVISED FEBRUARY 2007  
1.1nV/√Hz Noise, Low Power, Precision  
Operational Amplifier in Tiny DFN-8 Package  
FEATURES  
DESCRIPTION  
•
•
•
•
•
•
•
LOW-VOLTAGE NOISE: 1.1nV/√Hz at 1kHz  
100nVPP INPUT VOLTAGE NOISE, 0.1Hz–10Hz  
LOW OFFSET VOLTAGE: 100µV (max)  
LOW OFFSET VOLTAGE DRIFT: 0.2µV/°C (typ)  
LOW SUPPLY CURRENT: 3.6mA/Ch  
UNITY GAIN STABLE  
The OPA211 series achieves very low 1.1nV/√Hz  
noise density with a supply current of only 3.6mA. It  
also offers rail-to-rail output swing, which helps to  
maximize dynamic range.  
The OPA211 series’ extremely low voltage and  
current noise, high speed and wide output swing  
make it an excellent choice as a loop filter amplifier  
in PLL applications.  
GAIN BANDWIDTH PRODUCT:  
80MHz (G = 100)  
In precision data acquisition applications, the  
OPA211 series of op amps provide <1µs settling  
time to 16-bit accuracy even for 10V output swings.  
This ac performance, combined with only 100µV of  
offset and low drift over temperature, make the  
•
•
SLEW RATE: 27V/µs  
WIDE SUPPLY RANGE:  
±2.25V to ±18V, +4.5V to +36V  
•
•
•
•
RAIL-TO-RAIL OUTPUT  
OUTPUT CURRENT: 30mA  
SHUTDOWN: 20µA (max)  
OPA211  
high-precision analog-to-digital converters (ADCs) or  
buffering the outputs of high-resolution  
digital-to-analog converters (DACs).  
highly  
suitable  
for  
driving  
fast,  
AVAILABLE IN TINY DFN-8 (3x3mm), MSOP-8,  
SO-8  
The OPA211 is specified over the very wide  
dual-power supply range of ±2.25V to ±18V, or  
single-supply operation from +4.5V to +36V.  
APPLICATIONS  
•
•
PLL LOOP FILTER  
LOW-NOISE, LOW-POWER SIGNAL  
PROCESSING  
HIGH-PERFORMANCE ADC DRIVERS  
HIGH-PERFORMANCE DAC OUTPUT  
AMPLIFIER  
The OPA211 is available in the tiny DFN-8 (3×3mm)  
and MSOP-8 and SO-8 packages. A dual version,  
the OPA2211, is available in the DFN-8 (3×3mm) or  
an MSOP-8 package. This series of op amps is  
specified from –40°C to +125°C.  
•
•
OPA211  
•
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ACTIVE FILTERS  
NC  
-IN  
+IN  
V-  
1
2
3
4
8
7
6
5
Enable  
V+  
LOW-NOISE INSTRUMENTATION AMPS  
ULTRASOUND AMPLIFIERS  
PROFESSIONAL AUDIO PREAMPLIFIERS  
LOW-NOISE FREQUENCY SYNTHESIZERS  
INFRARED DETECTOR AMPLIFIERS  
HYDROPHONE AMPLIFIERS  
MEDICAL  
OUT  
NC  
MSOP-8  
OPA2211  
OUT A  
-IN A  
+IN A  
V-  
1
2
3
4
8
7
6
5
V+  
A
OUT B  
-IN B  
+IN B  
B
MSOP-8  
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.  
All trademarks are the property of their respective owners.  
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2006–2007, Texas Instruments Incorporated  
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