Datasheet > AD628

AD628

更新时间： 2024-11-19 12:55:03

品牌	Logo	应用领域
爱美达 - AAVID		放大器
页数	文件大小	规格书
16页	375K
描述
Very Low Distortion, Precision Difference Amplifier

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AD628 数据手册

Very Low Distortion,

Precision Difference Amplifier

AD8274

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Very low distortion

0.00025% THD + N (20 kHz)

0.0015% THD + N (100 kHz)

Drives 600 Ω loads

12kΩ

6kΩ

Excellent gain accuracy

0.03% maximum gain error

2 ppm/°C maximum gain drift

Gain of ½ or 2

AC specifications

20 V/μs minimum slew rate

800 ns to 0.01% settling time

High accuracy dc performance

83 dB minimum CMRR

–V

Figure 1.

700 μV maximum offset voltage

8-lead SOIC and MSOP packages

Supply current: 2.6 mA maximum

Supply range: 2.5 V to 18 V

Table 1. Difference Amplifiers by Category

Low

Distortion

High

Voltage

Single-Supply

Unidirectional

Single-Supply

Bidirectional

APPLICATIONS

ADC driver

AD8270

AD8273

AD8274

AMP03

AD628

AD629

AD8202

AD8203

AD8205

AD8206

AD8216

High performance audio

Instrumentation amplifier building blocks

Level translators

Automatic test equipment

Sine/cosine encoders

GENERAL DESCRIPTION

The AD8274 is a difference amplifier that delivers excellent ac

and dc performance. Built on Analog Devices, Inc., proprietary

iPolar® process and laser-trimmed resistors, AD8274 achieves a

breakthrough in distortion vs. current consumption and has

excellent gain drift, gain accuracy, and CMRR.

With no external components, the AD8274 can be configured

as a G = ½ or G = 2 difference amplifier. For single-ended

applications that need high gain stability or low distortion

performance, the AD8274 can also be configured for several

gains ranging from −2 to +3.

Distortion in the audio band is an extremely low 0.00025%

(112 dB) at a gain of ½ and 0.00035% (109 dB) at a gain of 2

while driving a 600 Ω load

The excellent distortion and dc performance of the AD8274,

along with its high slew rate and bandwidth, make it an excellent

ADC driver. Because of the part’s high output drive, it also

makes a very good cable driver.

With supply voltages up to 18 V (+36 V single supply), the

AD8274 is well suited for measuring large industrial signals.

Additionally, the part’s resistor divider architecture allows it to

measure voltages beyond the supplies.

The AD8274 only requires 2.6 mA maximum supply current. It

is specified over the industrial temperature range of −40°C to

+85°C and is fully RoHS compliant. For the dual version, see the

AD8273 data sheet.

Rev. C

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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AD628_06	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier
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AD628AR	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARM	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARM-REEL	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARM-REEL7	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARMZ	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier
AD628ARMZ-R7	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier
AD628ARMZ-REEL7	ADI	获取价格	OP-AMP, 1500uV OFFSET-MAX, PDSO8, MO-187AA, MSOP-8
AD628ARMZ-RL	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier

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