National Instruments NI PXI-7831R User Manual

Also see for NI PXI-7831R: User manual User manual Note to Users User manual User manual

Contents

National Instruments NI PXI-7831R User Manual Manual pdf 23 page image

Chapter 2 Hardware Overview of the NI PXI-7831RNI PXI-7831R User Manual 2-2 ni.comFigure 2-2. Parts Locator Diagram for the NI PXI-7831RAnalog InputThe NI PXI-7831R has eight independent, 16-bit AI channels that can besimultaneously sampled or sampled at different rates. The input mode issoftware configurable, and the input range is fixed at ±10 V. The convertersreturn data in two’s complement format. Table 2-1 shows the ideal outputcode returned for a given AI voltage.Table 2-1. Ideal Output Code and AI Voltage MappingInput Description AI VoltageOutput Code (Hex)(Two’s Complement)Full-scale range –1 LSB 9.999695 7FFFFull-scale range –2 LSB 9.999390 7FFESW1