AD8429ARZ

更新时间： 2024-11-21 08:17:47

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
20页	554K
描述
1 nV/√Hz Low Noise Instrumentation Amplifier ±4 V to ±18 V dual supply

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AD8429ARZ 数据手册

1 nV/√Hz Low Noise

Instrumentation Amplifier

AD8429

FEATURES

PIN CONNECTION DIAGRAM

Low noise

1 nV/√Hz input noise

45 nV/√Hz output noise

AD8429

–IN

OUT

REF

–V

High accuracy dc performance (AD8429BRZ)

90 dB CMRR minimum (G = 1)

50 μV maximum input offset voltage

0.02% maximum gain accuracy (G = 1)

Excellent ac specifications

80 dB CMRR to 5 kHz (G = 1)

15 MHz bandwidth (G = 1)

1.2 MHz bandwidth (G = 100)

22 V/μs slew rate

+IN

TOP VIEW

(Not to Scale)

Figure 1.

THD: −130 dBc (1 kHz, G = 1)

Versatile

4 V to 18 V dual supply

Gain set with a single resistor (G = 1 to 10,000)

Temperature range for specified performance

−40°C to +125°C

APPLICATIONS

Medical instrumentation

Precision data acquisition

Microphone preamplification

Vibration analysis

GENERAL DESCRIPTION

The AD8429 is an ultralow noise, instrumentation amplifier

designed for measuring extremely small signals over a wide

temperature range (−40°C to +125°C).

be useful to shift the output level when interfacing to a single

supply signal chain.

The AD8429 performance is specified over the extended industrial

The AD8429 excels at measuring tiny signals. It delivers ultralow

input noise performance of 1 nV/√Hz. The high CMRR of the

AD8429 prevents unwanted signals from corrupting the acqui-

sition. The CMRR increases as the gain increases, offering high

rejection when it is most needed. The high performance pin

configuration of the AD8429 allows it to reliably maintain high

CMRR at frequencies well beyond those of typical instrumentation

amplifiers.

temperature range of −40°C to +125°C. It is available in an 8-lead

plastic SOIC package.

1000

100

G = 1

The AD8429 reliably amplifies fast changing signals. Its current

feedback architecture provides high bandwidth at high gain, for

example, 1.2 MHz at G = 100. The design includes circuitry to im-

prove settling time after large input voltage transients. The AD8429

was designed for excellent distortion performance, allowing use in

demanding applications such as vibration analysis.

G = 10

G = 100

G = 1k

0.1

100

10k

100k

Gain is set from 1 to 10,000 with a single resistor. A reference

pin allows the user to offset the output voltage. This feature can

FREQUENCY (Hz)

Figure 2. RTI Voltage Noise Spectral Density vs. Frequency

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

12 3 4 5 6 7...20

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AD8429ARZ 替代型号

型号	品牌	替代类型	描述	数据表
AD621ARZ	ADI	类似代替	Low Drift, Low Power Instrumentation Amp with fixed gains of 10 and 100
AD621BRZ	ADI	类似代替	Low Drift, Low Power Instrumentation Amplifier
AD8226BRZ	ADI	类似代替	Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

与AD8429ARZ相关器件

型号	品牌	获取价格	描述	数据表
AD8429ARZ-R7	ADI	获取价格	1 nV/√Hz Low Noise Instrumentation Amplifier
AD8429BRZ	ADI	获取价格	1 nV/√Hz Low Noise Instrumentation Amplifier
AD8429BRZ-R7	ADI	获取价格	1 nV/√Hz Low Noise Instrumentation Amplifier
AD842JCHIPS	ADI	获取价格	Wideband, High Output Current, Fast Settling Op Amp
AD842JH	ADI	获取价格	Wideband, High Output Current, Fast Settling Op Amp
AD842JHZ	ADI	获取价格	IC OP-AMP, 2500 uV OFFSET-MAX, 80 MHz BAND WIDTH, MBCY12, METAL CAN, TO-8, 12 PIN, Operati
AD842JN	ADI	获取价格	Wideband, High Output Current, Fast Settling Op Amp
AD842JNZ	ADI	获取价格	Wideband, High Output Current Fast Settling Op Amp
AD842JQ	ADI	获取价格	Wideband, High Output Current, Fast Settling Op Amp
AD842JR	ADI	获取价格	IC OP-AMP, 1500 uV OFFSET-MAX, 80 MHz BAND WIDTH, PDSO16, SOIC-16, Operational Amplifier

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