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AD8031ART

更新时间： 2024-10-28 12:33:15
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器放大器电路光电二极管
页数 文件大小 规格书
21页 635K
描述
2.7 V, 800 muA, 80 MHz Rail-to-Rail I/O Amplifiers

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2.7 V, 800 µA, 80 MHz  
Rail-to-Rail I/O Amplifiers  
Data Sheet  
AD8031/AD8032  
FEATURES  
CONNECTION DIAGRAMS  
Low power  
NC  
–IN  
+IN  
1
2
3
4
AD8032  
– +  
8
7
6
5
NC  
+V  
OUT1  
–IN1  
+IN1  
1
2
3
4
8
7
6
5
+V  
S
–
+
Supply current 800 µA/amplifier  
Fully specified at +2.7 V, +5 V, and 5 V supplies  
High speed and fast settling on 5 V  
80 MHz, −3 dB bandwidth (G = +1)  
30 V/µs slew rate  
OUT2  
–IN2  
+IN2  
S
OUT  
NC  
+ –  
–V  
S
AD8031  
–V  
S
NC = NO CONNECT  
Figure 1. 8-Lead PDIP (N) and  
SOIC_N (R)  
Figure 2. 8-Lead PDIP (N),  
SOIC_N (R), and MSOP (RM)  
125 ns settling time to 0.1%  
Rail-to-rail input and output  
No phase reversal with input 0.5 V beyond supplies  
Input CMVR extends beyond rails by 200 mV  
Output swing to within 20 mV of either rail  
Low distortion  
AD8031  
V
1
2
3
5
4
+V  
S
OUT  
–V  
S
–
+
+IN  
–IN  
Figure 3. 5-Lead SOT-23 (RJ-5)  
−62 dB @ 1 MHz, VO = 2 V p-p  
−86 dB @ 100 kHz, VO = 4.6 V p-p  
Output current: 15 mA  
High grade option: VOS (maximum) = 1.5 mV  
Operating on supplies from +2.7 V to +12 V and dual supplies  
up to 6 V, the AD8031/AD8032 are ideal for a wide range of  
applications, from battery-operated systems with large bandwidth  
requirements to high speed systems where component density  
requires lower power dissipation. The AD8031/AD8032 are  
available in 8-lead PDIP and 8-lead SOIC_N packages and  
operate over the industrial temperature range of −40°C to  
+85°C. The AD8031A is also available in the space-saving  
5-lead SOT-23 package, and the AD8032A is available in an  
8-lead MSOP package.  
APPLICATIONS  
High speed, battery-operated systems  
High component density systems  
Portable test instruments  
A/D buffers  
Active filters  
High speed, set-and-demand amplifiers  
V
= 4.85V p-p  
V
= 4.65V p-p  
IN  
OUT  
G = +1  
GENERAL DESCRIPTION  
The AD8031 (single) and AD8032 (dual) single-supply, voltage  
feedback amplifiers feature high speed performance with  
80 MHz of small signal bandwidth, 30 V/µs slew rate, and 125 ns  
settling time. This performance is possible while consuming less  
than 4.0 mW of power from a single 5 V supply. These features  
increase the operation time of high speed, battery-powered  
systems without compromising dynamic performance.  
2µs/DIV  
2µs/DIV  
Figure 4. Input VIN  
Figure 5. Output VOUT  
+5V  
The products have true single-supply capability with rail-to-rail  
input and output characteristics and are specified for +2.7 V, +5 V,  
and 5 V supplies. The input voltage range can extend to 500 mV  
beyond each rail. The output voltage swings to within 20 mV of  
each rail providing the maximum output dynamic range.  
–
+
V
OUT  
V
IN  
1kΩ  
1.7pF  
+2.5V  
Figure 6. Rail-to-Rail Performance at 100 kHz  
The AD8031/AD8032 also offer excellent signal quality for only  
800 µA of supply current per amplifier; THD is −62 dBc with a  
2 V p-p, 1 MHz output signal, and –86 dBc for a 100 kHz,  
4.6 V p-p signal on +5 V supply. The low distortion and fast  
settling time make them ideal as buffers to single-supply ADCs.  
Rev. F  
Document Feedback  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rightsof third parties that may result fromits use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks andregisteredtrademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Technical Support  
©2013 Analog Devices, Inc. All rights reserved.  
www.analog.com  
 
 
 
 
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