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Chapter 2
Hardware Overview of the NI 783xR
AI+
AI–
Input Mode Mux
AISENSE
AIGND
Calibration
Mux
NI 7830R Overview
NI 7831R/7833R Overview
Analog Input
NI 783xR User Manual
Calibration
DACs
Input Mux
+
Instrumentation
Amplifier
–
x8 Channels
Voltage
Temperature
Reference
Sensor
2
Calibration
DACs
16-Bit
DAC
x8 Channels
Digital I/O (16)
Digital I/O (40)
Digital I/O (40)
Figure 2-2. NI 7831R/7833R Block Diagram
The NI 7830R has four independent, 16-bit AI channels; four independent,
16-bit AO channels; and 56 bidirectional DIO lines that you can configure
individually for input or output.
The NI 7831R and NI 7833R each have eight independent, 16 bit AI
channels; eight independent, 16-bit AO channels; and 96 bidirectional DIO
lines that you can configure individually for input or output.
You can sample NI 783xR AI channels simultaneously or at different rates.
The input mode is software configurable, and the input range is fixed at
Configuration
Control
16-Bit
ADC
User-
Configurable
Data/Address/
FPGA on RIO
Control
Devices
PXI Local Bus (NI PXI-783 x R only)
2-2
Flash
Memory
Control
Bus
Interface
Address/Data
RTSI Bus
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