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AD8253ARMZ-RL

更新时间： 2024-10-30 04:30:59
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亚德诺 - ADI 仪表放大器
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24页 575K
描述
10 MHz, 20 V/レs, G = 1, 10, 100, 1000 iCMOS Programmable Gain Instrumentation Amplifier

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AD8253ARMZ-RL 数据手册

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10 MHz, 20 V/μs, G = 1, 10, 100, 1000 iCMOS  
Programmable Gain Instrumentation Amplifier  
AD8253  
FEATURES  
Small package: 10-lead MSOP  
FUNCTIONAL BLOCK DIAGRAM  
DGND WR  
A1  
A0  
2
6
5
4
Programmable gains: 1, 10, 100, 1000  
Digital or pin-programmable gain setting  
Wide supply: ±± V to ±1± V  
LOGIC  
1
–IN  
Excellent dc performance  
High CMRR: 100 dB (minimum), G = 100  
Low gain drift: 10 ppm/°C (maximum)  
Low offset drift: 1.2 μV/°C (maximum), G = 1000  
Excellent ac performance  
7
OUT  
10  
+IN  
Fast settling time: 780 ns to 0.001% (maximum)  
High slew rate: 20 V/ꢀs (minimum)  
AD8253  
8
3
–V  
9
Low distortion: −110 dB THD at 1 kHz,10 V swing  
High CMRR over frequency: 100 dB to 20 kHz (minimum)  
Low noise: 10 nV/√Hz, G = 1000 (maximum)  
Low power: 4 mA  
+V  
REF  
S
S
Figure 1.  
80  
70  
60  
50  
40  
30  
20  
10  
0
APPLICATIONS  
G = 1000  
G = 100  
G = 10  
G = 1  
Data acquisition  
Biomedical analysis  
Test and measurement  
GENERAL DESCRIPTION  
The AD8253 is an instrumentation amplifier with digitally  
programmable gains that has gigaohm (GΩ) input impedance,  
low output noise, and low distortion, making it suitable for  
interfacing with sensors and driving high sample rate analog-to-  
digital converters (ADCs).  
–10  
–20  
1k  
10k  
100k  
1M  
10M  
100M  
It has a high bandwidth of 10 MHz, low THD of −110 dB, and  
fast settling time of 780 ns (maximum) to 0.001%. Offset drift and  
gain drift are guaranteed to 1.2 μV/°C and 10 ppm/°C, respectively,  
for G = 1000. In addition to its wide input common voltage range,  
it boasts a high common-mode rejection of 100 dB at G = 1000  
from dc to 20 kHz. The combination of precision dc performance  
coupled with high speed capabilities makes the AD8253 an  
excellent candidate for data acquisition. Furthermore, this  
monolithic solution simplifies design and manufacturing and  
boosts performance of instrumentation by maintaining a tight  
match of internal resistors and amplifiers.  
FREQUENCY (Hz)  
Figure 2. Gain vs. Frequency  
Table 1. Instrumentation Amplifiers by Category  
General  
Purpose  
Zero  
Drift  
Mil  
Grade  
Low  
Power  
High Speed  
PGA  
AD82201  
AD8221  
AD8222  
AD82241  
AD8228  
AD82311  
AD85531  
AD85551  
AD85561  
AD85571  
AD620  
AD621  
AD524  
AD526  
AD624  
AD6271  
AD6231  
AD82231  
AD8250  
AD8251  
AD8253  
1 Rail-to-rail output.  
The AD8253 user interface consists of a parallel port that allows  
users to set the gain in one of two different ways (see Figure 1  
for the functional block diagram). A 2-bit word sent via a bus  
The AD8253 is available in a 10-lead MSOP package and is  
specified over the −40°C to +85°C temperature range, making it  
an excellent solution for applications where size and packing  
density are important considerations.  
WR  
can be latched using the  
input. An alternative is to use  
transparent gain mode, where the state of logic levels at the gain  
port determines the gain.  
Rev. 0  
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  
rights of third parties that may result from its 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 and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2008 Analog Devices, Inc. All rights reserved.  
 
 
 
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AD8253ARMZ-RL 替代型号

型号 品牌 替代类型 描述 数据表
AD8253ARMZ ADI

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