AD628ARMZ-R7

更新时间： 2024-11-03 04:04:11

品牌	Logo	应用领域
亚德诺 - ADI		运算放大器放大器电路光电二极管
页数	文件大小	规格书
20页	457K
描述
High Common-Mode Voltage, Programmable Gain Difference Amplifier

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AD628ARMZ-R7 数据手册

High Common-Mode Voltage,

Programmable Gain Difference Amplifier

AD628

FUNCTIONAL BLOCK DIAGRAM

FEATURES

High common-mode input voltage range

±±12 V at V_S= ±±ꢀ V

Gain range 2.± to ±22

EXT1

EXT2

Operating temperature range: −42°C to ±ꢁꢀ°C

Supply voltage range

Dual supply: ±1.1ꢀ V to ±±ꢁ V

100kΩ

10kΩ

–IN

+IN

G = +0.1

–IN

+IN

OUT

Single supply: 4.ꢀ V to 36 V

–IN

10kΩ

Excellent ac and dc performance

Offset temperature stability RTI: ±2 μV/°C maximum

Offset: ±±.ꢀ V mV maximum

+IN

100kΩ

10kΩ

AD628

CMRR RTI: 7ꢀ dB minimum, dc to ꢀ22 Hz, G = +±

–V

REF

APPLICATIONS

FILT

High voltage current shunt sensing

Programmable logic controllers

Analog input front end signal conditioning

+ꢀ V, +±2 V, ±ꢀ V, ±±2 V, and 4 to 12 mA

Isolation

Sensor signal conditioning

Power supply monitoring

Electrohydraulic control

Figure 1.

130

120

110

100

= ±15V

Motor control

GENERAL DESCRIPTION

= ±2.5V

The AD628 is a precision difference amplifier that combines

excellent dc performance with high common-mode rejection

over a wide range of frequencies. When used to scale high

voltages, it allows simple conversion of standard control

voltages or currents for use with single-supply ADCs. A

wideband feedback loop minimizes distortion effects due to

capacitor charging of Σ-Δ ADCs.

100

FREQUENCY (Hz)

10k

100k

Figure 2. CMRR vs. Frequency of the AD628

A reference pin (V_REF) provides a dc offset for converting bipolar

to single-sided signals. The AD628 converts +5 V, +10 V, 5 V,

10 V, and 4 to 20 mA input signals to a single-ended output

within the input range of single-supply ADCs.

A precision 10 kΩ resistor connected to an external pin is

provided for either a low-pass filter or to attenuate large

differential input signals. A single capacitor implements a low-

pass filter. The AD628 operates from single and dual supplies

and is available in an 8-lead SOIC_N or 8-lead MSOP package.

It operates over the standard industrial temperature range of

−40°C to +85°C.

The AD628 has an input common-mode and differential-mode

operating range of 120 V. The high common-mode input

impedance makes the device well suited for high voltage

measurements across a shunt resistor. The inverting input of the

buffer amplifier is available for making a remote Kelvin

connection.

Rev. F

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 9±26, Norwood, MA 21261-9±26, U.S.A.

Tel: 7ꢁ±.319.4722

Fax: 7ꢁ±.46±.3±±3

www.analog.com

12 3 4 5 6 7...20

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AD628ARMZ-R7 替代型号

型号	品牌	替代类型	描述	数据表
AD628ARM	ADI	完全替代	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARMZ-RL	ADI	类似代替	High Common-Mode Voltage, Programmable Gain Difference Amplifier
AD628ARMZ	ADI	类似代替	High Common-Mode Voltage, Programmable Gain Difference Amplifier

与AD628ARMZ-R7相关器件

型号	品牌	获取价格	描述	数据表
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
AD628ARN	ETC	获取价格	Amplifier. Other
AD628AR-REEL	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628AR-REEL7	ADI	获取价格	High Common-Mode Voltage Programmable Gain Difference Amplifier
AD628ARZ	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier
AD628ARZ-R7	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier
AD628ARZ-REEL	ADI	获取价格	OP-AMP, 1500uV OFFSET-MAX, PDSO8, MS-012AA, SOIC-8
AD628ARZ-REEL7	ADI	获取价格	OP-AMP, 1500uV OFFSET-MAX, PDSO8, MS-012AA, SOIC-8
AD628ARZ-RL	ADI	获取价格	High Common-Mode Voltage, Programmable Gain Difference Amplifier

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