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Analog Input
AI+
AI+
Mux
Mux
AI–
AI–
Analog Input Circuitry
Mux
© National Instruments Corporation
Figure 2-1 shows the analog input circuitry of E Series devices.
NI-PGIA
NI-PGIA
Figure 2-1. Analog Input Circuitry Block Diagram
E Series AI signals include the following signals: AI <0..15>, AI SENSE,
and AI GND. The NI 6031E/6033E/6071E devices include AI <16..63>
and AI SENSE 2 in addition to the previous list of signals. The type of input
signal source and the configuration of the AI channels being used
determine how you connect these AI signals to the E Series devices. This
chapter provides an overview of the different types of signal sources and AI
configuration modes.
Each E Series device has one analog-to-digital converter (ADC). The
multiplexer (mux) routes one AI channel at a time to the ADC through the
NI-PGIA. The mux also gives you the ability to use three different analog
input terminal configuration. For more information, refer to the
Input Terminal Configuration
ADC
ADC
Analog
Analog
Trigger
Trigger
section.
2-1
2
AI FIFO
AI Data
AI FIFO
AI Data
AI Timing Signals
AI Timing Signals
Analog
E Series User Manual
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