Product description
A / D conversion time: 10 microseconds, 100kHz

Programmable program-controlled gain control, program-controlled gain has four amplification options
When the gain multiple of 1000 is selected, the input signal is 0-10 MV
A / D conversion accuracy: ± 1lsb, less than 2 ‰
Nonlinearity error: maximum ± 1lsb
One minute withstand voltage of photoelectric isolation chip is 2500V
The data passing rate of photoelectric isolation chip is 25kHz
The analog chip is powered by on-board power isolation module
Trigger mode: software trigger
Data transmission: inquiry and interruption
Input impedance: greater than 10m Ω
Temperature drift: typical value 5ppm, maximum 15ppm
Digital switch value TTL input and output (di / do)
8-bit switch input, input 0-5V when leaving the factory
By changing the current limiting resistance of the input signal, 0 ~ 12V or 0 ~ 24V can be input
8-bit switch output, with latch, output 0 ~ 5V
The switch output needs external + 5V power supply
Working temperature: 0 ℃～ 50 ℃
Storage temperature: - 20 ℃ ~ 80 ℃
Humidity: 5 ~ 95%, no condensation
Power supply: occupy system power + 5V
Overall dimension: 150 mm (length) × 105 mm (width)
Matching protection head: P900

It is suitable for IBM PC bus compatible computer and industrial control computer, and conforms to ISA bus standard. High precision measurement of 32 channel analog signal can be completed. High performance ad1674jn is selected as a / D conversion chip, and pga204 / 205 of BB company is selected as program-controlled gain amplifier chip, which can directly complete the data acquisition of input millivolt level small signal, which can replace the small signal amplification board at the front end of a / D board. In the field of industrial measurement and monitoring application system, this board is an ideal choice, it has a high cost performance. The I / O address of the board can be selected from 000 to 3fdh through the dial switch, occupying three addresses, and the factory output is 280-282H.