Use AD7606 high precision 16 bit ADC chip.8 analog input.Impedance 1 m ohm.[ without negative power supply without front analog op-amp circuit, can be directly connect the sensor output ] Plus or minus 5 v input range, plus or minus 10 v.Through the IO control range.Resolution of 16 bits.Maximum sampling frequency 200 KSPS.Support for custom oversampling setting 8 (can effectively reduce the jitter) Built-in benchmark. SPI interface or 16-bit bus interface.Interface IO level can be a 5 V or 3.3 V Tip:In order to convenient you choose, double row injection on the surface of the PCB look analogue inputs (2) by 8/2.54 mm spacing default not welding. The sampling rate is controlled by MCU or DSP provided by the pulse frequency.AD7606 must use a single 5 v power supply. [ description ] module pin OS2 OS1 OS2: composite state selected sampling mode. 000 said no sampling, maximum 200 KSPS sampling rate. 001 said 2 times oversampling, i.e., average internal hardware to collect two samples 010 said 4 times oversampling, namely hardware inside collect four samples for average 011 said 8 times sampling, namely hardware inside collect eight samples for average 100 indicates 16 times oversampling, namely hardware inside collect 16 samples for average 101 said 32 times oversampling, i.e., average hardware inside collect 32 samples 110 said 64 times before sampling, that is, internal hardware to collect 64 samples for average Oversampling ratio is higher, the longer the ADC conversion time, maximum available the lower sampling frequency. CVA, CVB: start the AD conversion control signals.CVA decided to 1-4 channel, CVB decided to channel 5-8. Two signals can stagger a short time.Generally can be CVA, CVB connected in parallel. RAGE: range range selection.0 means plus or minus 5 v, 1 plus or minus 10 v. RD: read signal RST: reset signal BUSY, BUSY signal CS: choose piece of signal FRST: 1 channel signal sample orders VIO: communication interface level DB0 - DB15: data bus Color: picture color Material: ABS Package Contents: 2 * 8 double row pin 8 * jumper caps Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.