AD8220WARMZ

更新时间： 2024-11-17 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 PC
页数	文件大小	规格书
28页	510K
描述
JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package

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AD8220WARMZ 数据手册

JFET Input Instrumentation Amplifier with

Rail-to-Rail Output in MSOP Package

AD8220

FEATURES

PIN CONFIGURATION

Low input currents

AD8220

–IN

10 pA maximum input bias current (B grade)

0.6 pA maximum input offset current (B grade)

High CMRR

100 dB CMRR (minimum), G = 10 (B grade)

80 dB CMRR (minimum) to 5 kHz, G = 1 (B grade)

Excellent ac specifications and low power

1.5 MHz bandwidth (G = 1)

OUT

REF

–V

+IN

TOP VIEW

(Not to Scale)

Figure 1.

14 nV/√Hz input noise (1 kHz)

Slew rate: 2 V/μs

750 μA quiescent supply current (maximum)

Versatile

MSOP package

10n

BIAS

Rail-to-rail output

Input voltage range to below negative supply rail

4 kV ESD protection

4.5 V to 36 V single supply

100p

10p

2.25 V to 18 V dual supply

Gain set with single resistor (G = 1 to 1000)

Qualified for automotive applications

0.1p

APPLICATIONS

–50

–25

100

125

150

Medical instrumentation

Precision data acquisition

Transducer interfaces

TEMPERATURE (°C)

Figure 2. Input Bias Current and Offset Current vs. Temperature

GENERAL DESCRIPTION

The AD8220 is the first single-supply, JFET input instrumentation

amplifier available in an MSOP package. Designed to meet the

needs of high performance, portable instrumentation, the AD8220

has a minimum common-mode rejection ratio (CMRR) of 86 dB

at dc and a minimum CMRR of 80 dB at 5 kHz for G = 1. Maxi-

mum input bias current is 10 pA and typically remains below

300 pA over the entire industrial temperature range. Despite the

JFET inputs, the AD8220 typically has a noise corner of only 10 Hz.

Gain is set from 1 to 1000 with a single resistor. Increasing the

gain increases the common-mode rejection. Measurements that

need higher CMRR when reading small signals benefit when

the AD8220 is set for large gains.

A reference pin allows the user to offset the output voltage. This

feature is useful when interfacing with analog-to-digital converters.

The AD8220 is available in an MSOP that takes roughly half the

board area of an SOIC. Performance for the A and B grade is

specified over the industrial temperature range of −40°C to +85°C,

and the W grade is specified over the automotive temperature

range of −40°C to +125°C.

With the proliferation of mixed-signal processing, the number

of power supplies required in each system has grown. The AD8220

is designed to alleviate this problem. The AD8220 can operate

on a 18 ꢀ dual supply, as well as on a single +5 ꢀ supply. Its

rail-to-rail output stage maximizes dynamic range on the low

voltage supplies common in portable applications. Its ability to

run on a single 5 ꢀ supply eliminates the need to use higher

voltage, dual supplies. The AD8220 draws a maximum of 750 μA

of quiescent current, making it ideal for battery powered devices.

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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AD8220WARMZ 替代型号

型号	品牌	替代类型	描述	数据表
AD8220WARMZ-R7	ADI	类似代替	JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package
AD8220BRMZ-R7	ADI	类似代替	JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package
AD8220BRMZ	ADI	类似代替	JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package

与AD8220WARMZ相关器件

型号	品牌	获取价格	描述	数据表
AD8220WARMZ-R7	ADI	获取价格	JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package
AD8220WARMZ-RL	ADI	获取价格	JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package
AD8221	ADI	获取价格	Precision Instrumentation Amplifier
AD8221AC-P7	ADI	获取价格	Precision Instrumentation Amplifier
AD8221AR	ADI	获取价格	Precision Instrumentation Amplifier
AD8221ARM	ADI	获取价格	Precision Instrumentation Amplifier
AD8221ARM-REEL	ADI	获取价格	Precision Instrumentation Amplifier
AD8221ARMREEL7	ADI	获取价格	Precision Instrumentation Amplifier
AD8221ARM-REEL7	ADI	获取价格	Precision Instrumentation Amplifier
AD8221ARMZ	ADI	获取价格	Precision Instrumentation Amplifier

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