782 Analog Readout Circuit

782 : Analog Readout Circuit

Design render

How it works

clk pin = 1Mhz - 20Mhz clock rst_pin = connect basic button or switch. ui_in[0] = switch 3 measure for big capacitor ui_in[1] = switch 2 measure for medium capacitor ui_in[2] = switch 1 measure for small capacitor

ui_in[3] = pulse delay control pin for small signal 1um ui_in[4] = pulse delay control pin for small signal 3um ui_in[5] = pulse delay control pin for small signal 4.3um ui_in[6] = pulse delay control pin for small signal 6um

uio_in[0] = current source control pin for small current L= 2um uio_in[1] = current source control pin for small current L= 3um uio_in[2] = current source control pin for small current L= 6.5um uio_in[3] = current source control pin for small current L= 10um uio_in[4] = current source control pin for small current L= 13.5um

uo_out[0:7] = counter results for 8-bit

ua[0] connect to Capacitor ua[1] connect to voltage source. because this pin is comparator input

How to test

You can assign a logical 1 or 0 to the inputs and outputs given above and observe the resulting outcomes.

External hardware

Button Voltage source Microcontroller

IO

#InputOutputBidirectional
0sw3bit1csin1
1sw2bit2csin2
2sw1bit3csin3
3pd1bit4csin4
4pd2bit5csin5
5pd3bit6
6pd4bit7
7bit8

Analog pins

uaPCB PinInternal indexDescription
0B410IN
1B511IN2

Chip location

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