AD8221ARZ-RL

更新时间： 2024-11-21 08:17:39

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器放大器电路光电二极管
页数	文件大小	规格书
24页	718K
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Precision Instrumentation Amplifier

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AD8221ARZ-RL 数据手册

Precision Instrumentation Amplifier

AD8221

CONNECTION DIAGRAM

FEATURES

Easy to use

–IN

Available in space-saving MSOP

Gain set with 1 external resistor (gain range 1 to 1000)

Wide power supply range: 2.3 V to 18 V

Temperature range for specified performance:

−40°C to +85°C

OUT

REF

–V

+IN

AD8221

TOP VIEW

Figure 1.

Operational up to 125°C¹

Excellent AC specifications

80 dB minimum CMRR to 10 kHz ( G = 1)

825 kHz, –3 dB bandwidth (G = 1)

2 V/μs slew rate

120

110

100

AD8221

Low noise

8 nV/√Hz, @ 1 kHz, maximum input voltage noise

0.25 μV p-p input noise (0.1 Hz to 10 Hz)

High accuracy dc performance (AD8221BR)

90 dB minimum CMRR (G = 1)

25 μV maximum input offset voltage

0.3 μV/°C maximum input offset drift

0.4 nA maximum input bias current

COMPETITOR 1

COMPETITOR 2

APPLICATIONS

100

FREQUENCY (Hz)

10k

100k

Weigh scales

Industrial process controls

Bridge amplifiers

Figure 2. Typical CMRR vs. Frequency for G = 1

Precision data acquisition systems

Medical instrumentation

Strain gages

Low voltage offset, low offset drift, low gain drift, high gain

accuracy, and high CMRR make this part an excellent choice

in applications that demand the best dc performance possible,

such as bridge signal conditioning.

Transducer interfaces

GENERAL DESCRIPTION

Programmable gain affords the user design flexibility. A single

resistor sets the gain from 1 to 1000. The AD8221 operates on

both single and dual supplies and is well suited for applications

where 10 ꢀ input voltages are encountered.

The AD8221 is a gain programmable, high performance

instrumentation amplifier that delivers the industry’s highest

CMRR over frequency in its class. The CMRR of instrumentation

amplifiers on the market today falls off at 200 Hz. In contrast,

the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz

for all grades at G = 1. High CMRR over frequency allows the

AD8221 to reject wideband interference and line harmonics,

greatly simplifying filter requirements. Possible applications

include precision data acquisition, biomedical analysis, and

aerospace instrumentation.

The AD8221 is available in a low cost 8-lead SOIC and 8-lead

MSOP, both of which offer the industry’s best performance. The

MSOP requires half the board space of the SOIC, making it ideal

for multichannel or space-constrained applications.

Performance is specified over the entire industrial temperature

range of −40°C to +85°C for all grades. Furthermore, the AD8221

is operational from −40°C to +125°C¹.

¹See Typical Performance Characteristics for expected operation from

85°C to 125°C.

Rev. B

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

www.analog.com

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AD8221ARZ-RL 替代型号

型号	品牌	替代类型	描述	数据表
AD8221ARZ	ADI	类似代替	Precision Instrumentation Amplifier
AD8221AR	ADI	类似代替	Precision Instrumentation Amplifier

与AD8221ARZ-RL相关器件

型号	品牌	获取价格	描述	数据表
AD8221BR	ADI	获取价格	Precision Instrumentation Amplifier
AD8221BRM	ADI	获取价格	IC,INSTRUMENTATION AMPLIFIER,SINGLE,SOP,8PIN,PLASTIC
AD8221BR-REEL	ADI	获取价格	Precision Instrumentation Amplifier
AD8221BR-REEL7	ADI	获取价格	Precision Instrumentation Amplifier
AD8221BRZ	ADI	获取价格	Precision Instrumentation Amplifier
AD8221BRZ-R7	ADI	获取价格	Precision Instrumentation Amplifier
AD8221BRZ-RL	ADI	获取价格	Precision Instrumentation Amplifier
AD8221-EVAL	ADI	获取价格	Precision Instrumentation Amplifier
AD8221TRMZ-EP	ADI	获取价格	Precision Instrumentation Amplifier
AD8221TRMZ-EP-R7	ADI	获取价格	Precision Instrumentation Amplifier

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