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NF 5325 Circuit Design High Voltage Isolation Amplifier

NF 5325 Circuit Design High Voltage Isolation Amplifier

Model：5325      Country of Origin：Japan

Category：Precision Differential Amplifier

Overview：

Suitable for detecting signals at high voltages, interfacing between devices with different reference potentials, and taking measures such as preventing noise signals from computers (ground separation) at the input of measuring instruments.

Features
Specifications
Application Notes
Functions & Configuration

20210603031336220.jpg

The 5325 is a high-voltage, low-noise, wide-band isolation amplifier that provides electrical isolation between input and output. It is suitable for detecting signals at high voltages, for interfacing between devices with different reference potentials, and for measures such as preventing noise signals from computers (ground separation) at the input of measuring instruments.



Main features:

image.pngWide bandwidth DC∼1MHz
image.pngHigh gain 0.1∼1000x
image.pngLow noise 15nV/√Hz typ.
image.pngHigh voltage 7000Vpeak (1 minute), 2800Vpeak (continuous)
image.pngSignal rejection ratio (IMRR): 180dB or more
image.pngLeakage current: 3µA or less
image.pngBuilt-in low-pass filter 1kHz, 10kHz, 100kHz, THRU (phase linear)
image.pngLightweight design


Isolation voltage

AC7000Vpeak, 48Hz to 62Hz, 1 min.

AC2800Vpeak, 48Hz to 62Hz, continuous

DC± 2000V, continuous

IMRR

180dB or greater (DC and 60Hz, gain = X 1000)

Gain

X 1 to X 1000, 1-2-5 step

Gain accuracy

± 0.2%/FS or less (1kHz, no load)

Frequency range

DC to 1MHz

Noise

15nV/√Hz typ., 20nV/√Hz or less (1kHz)

Low pass filter

1k, 10k, 100kHz and THRU, 12dB/oct. PL(Phase Linear)

Power requirements

AC100V, 120V, 220V or 240V switchable

48to 62Hz, approx. 15VA

Dimensions

215(W) X 88(H) X 350(D) mm

Weight

Approx. 3.2kg


Applications

image.pngMeasurement when the ground potential differs between the signal source and the measuring instrument
image.pngMeasuring the potential difference between two points floating with respect to ground
image.pngGround insulation between analog and digital circuits
image.pngMeasuring weak signals near equipment through which a large ground current flows
image.pngMeasuring weak signals superimposed on high voltage


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