Datasheet > AD629BRZ-REEL7

AD629BRZ-REEL7

更新时间： 2024-11-19 14:40:47

品牌	Logo	应用领域
亚德诺 - ADI		放大器光电二极管
页数	文件大小	规格书
16页	376K
描述
OP-AMP, 1000uV OFFSET-MAX, PDSO8, PLASTIC, MS-012AA, SOIC-8

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AD629BRZ-REEL7 数据手册

High Common-Mode Voltage,

Difference Amplifier

AD629

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Improved replacement for: INA117P and INA117KU

±270 V common-mode voltage range

Input protection to

±±00 V common mode

±±00 V differential mode

21.1kΩ

380kΩ

REF(–)

–IN

+IN

OUTPUT

REF(+)

20kΩ

–V

Wide power supply range (±2.± V to ±18 V)

±10 V output swing on ±12 V supply

1 mA maximum power supply current

AD629

NC = NO CONNECT

Figure 1.

GENERAL DESCRIPTION

HIGH ACCURACY DC PERFORMANCE

3 ppm maximum gain nonlinearity (AD629B)

20 μV/°C maximum offset drift (AD629A)

10 μV/°C maximum offset drift (AD629B)

10 ppm/°C maximum gain drift

The AD629 is a difference amplifier with a very high input,

common-mode voltage range. It is a precision device that allows

the user to accurately measure differential signals in the

presence of high common-mode voltages up to ±2ꢀ7 ꢁ.

The AD629 can replace costly isolation amplifiers in

applications that do not require galvanic isolation. The device

operates over a ±2ꢀ7 ꢁ common-mode voltage range and has

inputs that are protected from common-mode or differential

mode transients up to ±±77 ꢁ.

EXCELLENT AC SPECIFICATIONS

77 dB minimum CMRR @ ±00 Hz (AD629A)

86 dB minimum CMRR @ ±00 Hz (AD629B)

±00 kHz bandwidth

The AD629 has low offset, low offset drift, low gain error drift,

low common-mode rejection drift, and excellent CMRR over a

wide frequency range.

APPLICATIONS

High voltage current sensing

Battery cell voltage monitors

Power supply current monitors

Motor controls

The AD629 is available in die and packaged form featuring

8-lead PDIP and 8-lead SOIC packages. For all packages

(including die) and grades, performance is guaranteed over

the industrial temperature range of −47°C to +8±°C.

Isolation

100

2mV/DIV

60V/DIV

–240

–120

120

240

100

10k 20k

COMMON-MODE VOLTAGE (V)

FREQUENCY (Hz)

Figure 3. Error Voltage vs. Input Common-Mode Voltage

Figure 2. Common-Mode Rejection Ratio vs. Frequency

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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