Newport 1830-C - Simplified 1830-C Functional Block Diagram

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Appendix C
Simplified 1830-C Functional Block Diagram
A simplified block diagram of the 1830-C is shown in Figure 11. The heart of
the 1830-C is a current to voltage converter followed by an A/D converter
that translates the conditioned analog input signals into a form usable by
the microcomputer. The microcomputer performs all necessary system
control and calculations required to display the correct reading.
Calibration
Module
Input
Connector
Analog
Output
Voltage Amp
x1, x10
VI
Voltage
Buffer
Transimpedance
Current Amplifier
Range
Resistors
A/D
Microcomputer
Keypad
LCD
Display
Figure 11. Simplified Functional Block Diagram