AD620

更新时间： 2024-11-26 22:38:59

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器
页数	文件大小	规格书
16页	562K
描述
Low Cost, Low Power Instrumentation Amplifier

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中文翻译

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数据手册

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AD620 数据手册

Low Cost, Low Power

Instrumentation Amplifier

AD620

CONNECTION DIAGRAM

FEATURES

EASY TO USE

Gain Set with One External Resistor

(Gain Range 1 to 1000)

8-Lead Plastic Mini-DIP (N), Cerdip (Q)

and SOIC (R) Packages

Wide Power Supply Range (؎2.3 V to ؎18 V)

Higher Performance than Three Op Amp IA Designs

Available in 8-Lead DIP and SOIC Packaging

Low Power, 1.3 mA max Supply Current

–IN

+IN

OUTPUT

REF

EXCELLENT DC PERFORMANCE (“B GRADE”)

50 ␮V max, Input Offset Voltage

0.6 ␮V/؇C max, Input Offset Drift

–V

AD620

TOP VIEW

1.0 nA max, Input Bias Current

100 dB min Common-Mode Rejection Ratio (G = 10)

1000. Furthermore, the AD620 features 8-lead SOIC and DIP

packaging that is smaller than discrete designs, and offers lower

power (only 1.3 mA max supply current), making it a good fit

for battery powered, portable (or remote) applications.

LOW NOISE

9 nV/√Hz, @ 1 kHz, Input Voltage Noise

0.28 ␮V p-p Noise (0.1 Hz to 10 Hz)

The AD620, with its high accuracy of 40 ppm maximum

nonlinearity, low offset voltage of 50 µV max and offset drift of

0.6 µV/°C max, is ideal for use in precision data acquisition

systems, such as weigh scales and transducer interfaces. Fur-

thermore, the low noise, low input bias current, and low power

of the AD620 make it well suited for medical applications such

as ECG and noninvasive blood pressure monitors.

EXCELLENT AC SPECIFICATIONS

120 kHz Bandwidth (G = 100)

15 ␮s Settling Time to 0.01%

APPLICATIONS

Weigh Scales

ECG and Medical Instrumentation

Transducer Interface

Data Acquisition Systems

Industrial Process Controls

Battery Powered and Portable Equipment

The low input bias current of 1.0 nA max is made possible with

the use of Superβeta processing in the input stage. The AD620

works well as a preamplifier due to its low input voltage noise of

9 nV/√Hz at 1 kHz, 0.28 µV p-p in the 0.1 Hz to 10 Hz band,

0.1 pA/√Hz input current noise. Also, the AD620 is well suited

for multiplexed applications with its settling time of 15 µs to

0.01% and its cost is low enough to enable designs with one in-

amp per channel.

PRODUCT DESCRIPTION

The AD620 is a low cost, high accuracy instrumentation ampli-

fier that requires only one external resistor to set gains of 1 to

30,000

10,000

25,000

20,000

15,000

10,000

5,000

3 OP-AMP

IN-AMP

1,000

(3 OP-07s)

TYPICAL STANDARD

BIPOLAR INPUT

IN-AMP

100

G = 100

AD620A

AD620 SUPER␤ETA

BIPOLAR INPUT

IN-AMP

0.1

10k

100k

10M

100M

SUPPLY CURRENT – mA

SOURCE RESISTANCE – ⍀

Figure 1. Three Op Amp IA Designs vs. AD620

Figure 2. Total Voltage Noise vs. Source Resistance

REV. E

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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中文翻译

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与AD620相关器件

型号	品牌	获取价格	描述	数据表
AD620_04	ADI	获取价格	Low Cost Low Power Instrumentation Amplifier
AD620_05	ADI	获取价格	Low Cost Low Power Instrumentation Amplifier
AD620A	ADI	获取价格	Low Cost, Low Power Instrumentation Amplifier
AD620ACHIPS	ADI	获取价格	Low Cost, Low Power Instrumentation Amplifier
AD620AN	ADI	获取价格	Low Cost, Low Power Instrumentation Amplifier
AD620AN	ROCHESTER	获取价格	INSTRUMENTATION AMPLIFIER, 150 uV OFFSET-MAX, 1 MHz BAND WIDTH, PDIP8, PLASTIC, MO-095-AA,
AD620ANZ	ADI	获取价格	Low Cost Low Power Instrumentation Amplifier
AD620AR	ADI	获取价格	Low Cost, Low Power Instrumentation Amplifier
AD620AR	ROCHESTER	获取价格	INSTRUMENTATION AMPLIFIER, 150 uV OFFSET-MAX, 1 MHz BAND WIDTH, PDSO8, MS-021-AA, SOIC-8
AD620AR-REEL	ADI	获取价格	Low Cost, Low Power Instrumentation Amplifier

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