Description

 

VKINGING VK701H+ 24Bit 400K DAQ USB Precision High Speed Data Acquisition Card Supports 4 Channels

Description:
VK701H+ is a USB type high-speed 24-bit data acquisition card. The VK701H+ acquisition card features true differential input, 4 channels of simultaneous acquisition, sampling accuracy of up to 24 bits, 400ksps sampling rate, 500 times precision pre-gain and USB optical isolation. Using multiple high-precision 24-bit ADC units and a pre-differential amplifier module developed by our company for many years, VK701H+ has high speed, high resolution, high precision, ultra-low noise, high common mode rejection ratio, wide measurement range, low temperature drift, etc. Thus, it is suitable for various occasions of precise and high-rate acquisition.

Features:
* ADC up to 24 bit resolution and USB interface with photoelectric isolation
* Input range: 0 ~ ± 10V
* High rate: 400ksps; 100ksps sampling rate per channel
* 4 IO ports, configurable input and output, external trigger acquisition
* Configurable 2-channel PWM
* Configurable 1-channel counting input
* Configurable 1-channel DAC output
* High-precision reference standard: 2.5V ±0.05%
* ADC input common mode signal rejection ratio: >140dB
* Configurable external IO port to trigger collection
* Integrated IEPE unit, 4 channels can be configured
* Differential input, can measure differential signal
* High-speed isolated USB data transmission, convenient for hot swapping
* Input impedance: 1000MΩ
* Input noise suppression ratio: >110dB
* ADC nonlinear THD: >100dB
* Temperature drift: <2 μV/°C
* Metal shielded shell: strong anti-interference ability
* The whole machine adopts ultra-low noise industrial-grade devices, with low temperature drift and strong anti-interference ability

Applications:
* Weak signal measurement collection
* Low noise data collection
* High resolution signal measurement
* High impedance differential signal measurement

AD analog input function:
* AD type: Bipolar 24 bits
* Sampling rate: 400k sampling rate for 4 channels, 100K sampling rate for each channel
* Input impedance: 1000M ohm
* Voltage input range: 4 channels ±1mV ~ ±10V (eight range options)

DA analog output function:
* Number of channels: 1-channel 10 bits (Bit), output voltage range: 0-3.3V

DI digital input and output function:
* Number of channels: 4, compatible level voltage: +5V or +3.3V

PWM function:
* Number of channels: 2-channel independent PWM adjustable, range of 1~100Khz, 0.0~1.0 adjustable duty cycle

Counting function:
* Pulse counting measurement: 1-way, the high level is 3.3V or 5V

Product size:
* Data acquisition card: 112 x 80 x 23mm/4.4 x 3.1 x 0.9" (LxWxH)

Package Included:
* 1 x Data acquisition card
* 1 x USB high-speed data cable

Note:
* Please contact us for data packages such as drivers and routines after purchasing. Thank you!



Acquisition of a sine wave with a Vp-p of 100uV


Acquisition of a sine wave with a Vp-p of 2V


Collected data is saved in EXCEL

 

PC collection software interface


Acquisition card software description:
The VK701H+ USB data acquisition card can work in common operating systems such as WIN11/Win10/WIN7 and LINUX, and provides a dynamic link library called by common programming languages such as Python, VB, VC, C#, C++Builder, VB, Delphi, Labview/Labwindows, and Matlab. The programming function interface is simple and easy to use, and it is easy to write applications. It provides routines such as Python, VB, VC, C#, C++Builder, VB, Delphi, Labview/Labwindows, and Matlab.