Datasheet > AD620S(Q)/883B

AD620S(Q)/883B

更新时间： 2024-11-03 14:47:35

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
20页	410K
描述
INSTRUMENTATION AMPLIFIER, 225uV OFFSET-MAX, 1MHz BAND WIDTH, CDIP8, CERAMIC, DIP-8

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AD620S(Q)/883B 数据手册

Low Cost Low Power

Instrumentation Amplifier

AD620

FEATURES

Easy to use

CONNECTION DIAGRAM

Gain set with one external resistor

(Gain range 1 to 10,000)

–IN

+IN

Wide power supply range ( 2.3 V to 18 V)

Higher performance than 3 op amp IA designs

Available in 8-lead DIP and SOIC packaging

Low power, 1.3 mA max supply current

Excellent dc performance (B grade)

50 μV max, input offset voltage

0.6 μV/°C max, input offset drift

1.0 nA max, input bias current

100 dB min common-mode rejection ratio (G = 10)

Low noise

9 nV/√Hz @ 1 kHz, input voltage noise

0.28 μV p-p noise (0.1 Hz to 10 Hz)

Excellent ac specifications

120 kHz bandwidth (G = 100)

15 μs settling time to 0.01%

OUTPUT

REF

–V

AD620

TOP VIEW

Figure 1. 8-Lead PDIP (N), CERDIP (Q), and SOIC (R) Packages

PRODUCT DESCRIPTION

The AD620 is a low cost, high accuracy instrumentation

amplifier that requires only one external resistor to set gains of

1 to 10,000. 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.

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.

Furthermore, 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.

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,

and 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.

Table 1. Next Generation Upgrades for AD620

30,000

Part

Comment

25,000

20,000

15,000

10,000

5,000

3 OP AMP

IN-AMP

AD8221

AD8222

AD8226

AD8220

AD8228

AD8295

AD8429

Better specs at lower price

Dual channel or differential out

Low power, wide input range

JFET input

Best gain accuracy

+2 precision op amps or differential out

Ultra low noise

(3 OP-07s)

AD620A

SUPPLY CURRENT (mA)

Figure 2. Three Op Amp IA Designs vs. AD620

Rev. H

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

registered trademarks 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 www.analog.com

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与AD620S(Q)/883B相关器件

型号	品牌	获取价格	描述	数据表
AD620SQ/883B	ADI	获取价格	Low Cost Low Power Instrumentation Amplifier
AD621	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621A	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621ACHIPS	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621AN	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621ANZ	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621AR	ADI	获取价格	Low Drift, Low Power Instrumentation Amplifier
AD621AR-REEL	ADI	获取价格	IC INSTRUMENTATION AMPLIFIER, 185 uV OFFSET-MAX, 0.2 MHz BAND WIDTH, PDSO8, PLASTIC, SOIC-
AD621AR-REEL7	ADI	获取价格	Low Drift, Low Power Instrumentation Amp with fixed gains of 10 and 100
AD621AR-REEL7	ROCHESTER	获取价格	INSTRUMENTATION AMPLIFIER, 185 uV OFFSET-MAX, 0.2 MHz BAND WIDTH, PDSO8, PLASTIC, SOIC-8

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