Hardware Overview Of The Ni 7831R - National Instruments NI 7831R User Manual

Hardware Overview
of the NI 7831R
AI+
AI–
Input Mode Mux
AISENSE
AIGND
Calibration
Mux
© National Instruments Corporation
This chapter presents an overview of the hardware functions and
I/O connectors on the NI 7831R.
Figure 2-1 shows a block diagram for the NI 7831R. Figure 2-2 shows the
parts locator diagram for the NI PXI-7831R. Figure 2-3 shows the parts
locator diagram for the NI PCI-7831R.
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)
Configuration
Control
16-Bit
ADC
User-
Configurable
Data/Address/
FPGA on RIO Control
Devices
PXI Local Bus (NI PXI-7831R only)
Figure 2-1. NI 7831R Block Diagram
2-1
2
Flash
Memory
Control
Bus
Interface
Address/Data
RTSI Bus
NI 7831R User Manual