1 power input terminal, the upper end of the ground, the lower end of the +5V.
2.LT3461 power chip, high ripple rejection ratio.
3 power indicator.
4.LP2985, LDO can effectively remove the low frequency noise, resulting in a very pure +5V, ASD1256 to provide analog power.
5.ADR431BRZ, B series for high precision benchmark. The reference chip generates a high precision 2.500000V benchmark
6 reference test hole.
7. Analog input, AIN0-AIN7 a total of eight input port can as eight independent single end input, can also be a group of 4 differential input, ain0 ain1 as a group, ain2 and ain3 ain4 and ain5 ain6 and AIN7.
8 analog input port
9 input resistance and attenuation resistance. The default resistance is not welded.
10.ADS1256 master control chip.
11.AMS1117-3.3v, digital voltage for ADS1256.
The brand of 12.NSK crystal, 7.68MHZ
13 and MCU communication interface.