AD624BDZ

更新时间： 2024-11-03 12:58:19

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
20页	273K
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High Precision, Low Noise Instrumentation Amplifier

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AD624BDZ 数据手册

Wide Supply Range, Rail-to-Rail

Output Instrumentation Amplifier

AD8426

Preliminary Technical Data

FEATURES

PIN CONFIGURATION

2 channels in a small, 4 mm × 4 mm LFCSP

LFCSP package has no metal pad

More routing room

No current leakage to pad

Gain set with 1 external resistor

Gain range: 1 to 1000

Input voltage goes below ground

Inputs protected beyond supplies

Very wide power supply range

Single supply: 2.2 V to 36 V

16 15 14 13

AD8426

12 –IN2

–IN1

RG1

+IN1

RG2

+IN2

Dual supply: 1.35 V to 18 V

Bandwidth (G = 1): 1.5 MHz

Figure 1.

CMRR (G = 1): 80 dB minimum

Input noise: 22 nV/√Hz

Typical supply current (per amp): 350 μA

Specified temperature range: −40°C to +125°C

Table 1. Instrumentation Amplifiers by Category¹

General

Purpose

Zero

Drift

Military

Grade

Low

Power

High Speed

PGA

APPLICATIONS

Industrial process controls

Bridge amplifiers

Medical instrumentation

Portable data acquisition

Multichannel systems

AD8220

AD8221

AD8222

AD8224

AD8228

AD8295

AD8231 AD620

AD8290 AD621

AD8293 AD524

AD8553 AD526

AD8556 AD624

AD8557

AD627

AD623

AD8235 AD8253

AD8236

AD8426

AD8226

AD8250

AD8251

AD8227

¹See www.analog.com for the latest instrumentation amplifiers.

GENERAL DESCRIPTION

The AD8426 is a dual channel, low cost, wide supply range

instrumentation amplifier that requires only one external

resistor to set any gain from 1 to 1000.

bias currents are specified to facilitate open-wire detection.

The AD8426 is designed to make PCB routing easy and

efficient. The two amplifiers are arranged in a logical way

so that typical application circuits have short routes and few

vias. Unlike most chip scale packages, the AD8426 does not

have an exposed metal pad on the back of the part, which frees

additional space for routing and vias. The AD8426 offers two in

amps in the equivalent board space of a typical MSOP package.

The AD8426 is designed to work with a variety of signal

voltages. A wide input range and rail-to-rail output allow the

signal to make full use of the supply rails. Because the input

range also includes the ability to go below the negative supply,

small signals near ground can be amplified without requiring

dual supplies. The AD8426 operates on supplies ranging from

1.ꢀ3 V to 18 V for dual supplies and 2.2 V to ꢀ6 V for single

supply.

The AD8426 is ideal for multichannel, space-constrained

industrial applications. Unlike other low cost, low power

instrumentation amplifiers, the AD8426 is designed with a

minimum gain of 1 and can easily handle 10 V signals. With

its space-saving LFCSP package and 123°C temperature rating,

the AD8426 thrives in tightly packed, zero airflow designs.

The robust AD8426 inputs are designed to connect to real-

world sensors. In addition to its wide operating range, the

AD8426 can handle voltages beyond the rails. For example,

with a 3 V supply, the part is guaranteed to withstand ꢀ3 V

at the input with no damage. Minimum as well as maximum input

The AD8226 is the single channel version of the AD8426.

Rev. PrD

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 are theproperty 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

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AD624BDZ 替代型号

型号	品牌	替代类型	描述	数据表
AD624CDZ	ADI	类似代替	High Precision, Low Noise Instrumentation Amplifier
AD524CDZ	ADI	类似代替	Precision Instrumentation Amplifier
AD624SD	ADI	类似代替	Precision Instrumentation Amplifier

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