VK701 USB 24-bit Data Acquisition Card

VK701 is a USB-type high-speed data acquisition card with 4-channel true differential input, 24-bitresolution, maximum sampling rate of 400ksps, precision preamplification, and USB optoelectronic isolation. This product uses a number of high-precision 24-bit ADC unit and with the company’s many years of accumulation of the development of the front differential amplification module, making the product has a high speed rate, high resolution, high precision, ultra-low noise, high rejection ratio, wide measurement range, low temperature drift advantages, suitable for precision and high speed rate acquisition of various occasions. Acquisition card expansion for the series version, optional LAN type: LAN version seeVK701N, WIFI high-speed transmission type see VK701W. VK701 capture card adopts all-metal shielding, which can be adapted to the application of industrial interference strong occasions, and has the advantages of moisture-proof, shock-proof and anti-interference.

The VK701 USB data acquisition card can work in common operating systems such as WIN11/Win10/WIN7, 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.

Dimensions	8 × 11,2 × 2,4 cm

Connection: USB
High Precision And High Resolution: 24-Bit resolution
Ultra-low Noise Preamplification: Measures down to 0.1uV
High-speed Synchronized Acquisition: Up to 100ksps (100k dots per second) for a single channel, 400ksps for 4 channels
Scope Of Transferees: 0 ~ ± 10V
Countingfrequency Measurement: Counting or frequency measurement
Integration Of 1 Dac Output:: 0~3.3V Analogue
Integration Of 2 Pwm Outputs: 16- Bit Adjustable PWM
Supports Temperature And Humidity Measurement: Digital Temperature and Humidity Sensors
Usb Optical Isolation: Electrical isolation
Usb Optical Isolation2: High anti-interference capability
Colour: Silver
Usb Supply Voltage: V 5 4.5~5.5
Usb Power Supply Current:: mA 50 30~100
Adc Analogue Port Input Voltages: V +/-10
Digital Port Input Vl Low: V 0 -0.3~1
Digital Port Input Vh High: V 3.3 2~5.5
Digital Port Output Voltage: V 3.3 3.2~3.4
Digital Port Output Drive Current When Output Is High: mA 10
Digital Port Input Absorption Current : uA 170
Adc Maximum Sampling Rate: ksps102.4 (4-channel synchronisation)
Minimum Resolution Voltage: uV 0.1
Out Output Voltage: V 0~3.3
Pwm Output Frequency: Hz 0~100k
Pwm Duty Cycle: % 0~100
Counter Input Maximum Frequency: Hz 100K
Counter Input Maximum Count Value: 2^64
Working Temperature Degrees Centigrade: -40~85
Storage Temperature Degrees Centigrade: -40~105
Safe Use Of Absolute Maximum: USB supply voltage: V -1~+6ADC Analogue Port: V -15V~+24VDigital Ports: V -1V~+5VDAC Output Ports: V -15V~+15VElectrostatic input (ESD) on all ports: V 2000Exceeding the absolute maximum value may damage the device and cause irreversible damage.
Differential Input Common Mode Rejection Ratio Cmrr:: dB 130
Input Bias Current: nA 1
Input Bias Voltages: uv10
Input Equivalent Voltage Noise: nVp-p 200 Maximum value is 400 when+-10 V is selected for the input range.
Input Equivalent Current Noise Iecn: pAp-p 1 Maximum value is 2
Equivalent Input Capacitance: pF 400
Input Resistance: GΩ 1
Adc Reference Accuracy: 0.1%
Overall Maximum Temperature Drift Of Adc Amplification Acquisition Unit: ppm/℃ 6
Input Ranges Vs Bottom Noise: Program set 0 -10V~+10V 0.3mVProgram set 1 -5V~+5V 0.1mVProgram set 2 -2.5V~+2.5V 60uVProgram set 3 -1V~+1V 25uVProgram set 4 -500mV~+500mV 15uVProgram set 5 -100mV~+100mV 6.5uVProgram set 6 -20mV~+20mV 6uVProgram set 7 -1mV~+1mV 5uVADC background noise is white noise, which is super imposed on the measurement result. (White noise can not be eliminated by hardware, only by software filtering.
Sample Rate Vs Effective Resolution: 1K ~ 4Ksps 21bit4K~15Ksps 20bit15k~35Ksps 19bit35k~64Ksps 17bit64k~100Ksps 16bitThe higher the sampling rate, the higher the noise of the ADC and the surrounding internal devices, and the lower the effective resolution.

VK701 USB 24-bit Data Acquisition Card

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