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AD8276BRMZ-R7

更新时间： 2024-10-28 06:36:11

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
20页	537K
描述
Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

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AD8276BRMZ-R7 数据手册

Low Power, Wide Supply Range, Low Cost

Unity-Gain Difference Amplifiers

AD8276/AD8277

FEATURES

FUNCTIONAL BLOCK DIAGRAM

+VS

Wide input range beyond supplies

Rugged input overvoltage protection

Low supply current: 200 μA maximum per channel

Low power dissipation: 0.5 mW at V_S= 2.5 V

Bandwidth: 550 kHz

CMRR: 86 dB minimum, dc to 10 kHz

Low offset voltage drift: 2 μV/°C maximum (B Grade)

Low gain drift: 1 ppm/°C maximum (B Grade)

Enhanced slew rate: 1.1 V/μs

AD8276

40kΩ

–IN

+IN

SENSE

OUT

40kΩ

REF

Wide power supply range:

–VS

Single supply: 2 V to 36 V

Dual supplies: 2 V to 18 V

Figure 1. AD8276

+VS

APPLICATIONS

AD8277

40kΩ

Voltage measurement and monitoring

Current measurement and monitoring

Differential output instrumentation amplifier

Portable, battery-powered equipment

Test and measurement

–INA

SENSEA

OUTA

40kΩ

+INA

–INB

REFA

GENERAL DESCRIPTION

The AD8276/AD8277 are general-purpose, unity-gain difference

amplifiers intended for precision signal conditioning in power

critical applications that require both high performance and low

power. They provide exceptional common-mode rejection ratio

(86 dB) and high bandwidth while amplifying signals well beyond

the supply rails. The on-chip resistors are laser-trimmed for

excellent gain accuracy and high CMRR. They also have extremely

low gain drift vs. temperature.

SENSEB

OUTB

40kΩ

+INB

REFB

–VS

Figure 2. AD8277

The common-mode range of the amplifiers extends to almost

double the supply voltage, making these amplifiers ideal for single-

supply applications that require a high common-mode voltage

range. The internal resistors and ESD circuitry at the inputs also

provide overvoltage protection to the op amps.

Table 1. Difference Amplifiers by Category

Low

Distortion

High

Voltage

Current

Sensing¹

Low Power

AD8276

AD8277

AD8270

AD8271

AD8273

AD8274

AMP03

AD628

AD629

AD8202 (U)

AD8203 (U)

AD8205 (B)

AD8206 (B)

AD8216 (B)

The AD8276/AD8277 are unity-gain stable. While they are

optimized for use as difference amplifiers, they can also be

connected in high precision, single-ended configurations with

G = −1, +1, +2. The AD8276/AD8277 provide an integrated

precision solution that has smaller size, lower cost, and better

performance than a discrete alternative.

AD8278

¹U = unidirectional, B = bidirectional.

The AD8276 is available in the space-saving 8-lead MSOP and

SOIC packages, and the AD8277 is offered in a 14-lead SOIC

package. Both are specified for performance over the industrial

temperature range of −40°C to +85°C and are fully RoHS

compliant.

The AD8276/AD8277 operate on single supplies (2.0 V to 36 V)

or dual supplies ( 2 V to 18 V). The maximum quiescent

supply current is 200 μA per channel, which is ideal for battery-

operated and portable systems.

Rev. A

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

Fax: 781.461.3113

www.analog.com

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AD8276BRMZ-R7 替代型号

型号	品牌	替代类型	描述	数据表
AD8276BRMZ-RL	ADI	类似代替	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8276BRMZ	ADI	类似代替	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8276BRZ	ADI	功能相似	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

与AD8276BRMZ-R7相关器件

型号	品牌	获取价格	描述	数据表
AD8276BRMZ-RL	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8276BRZ	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8276BRZ-R7	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8276BRZ-RL	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277ARZ	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277ARZ-R7	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277ARZ-RL	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277BRZ	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers
AD8277BRZ-R7	ADI	获取价格	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

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