Introduction

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The National Instruments USB-6008/6009 devices provide eight single-ended analog input (AI) channels, two analog output (AO) channels, 12 DIO channels, and a 32-bit counter with a full-speed USB interface. This user guide describes how to use these devices.

For specifications, refer to the NI USB-6008 Device Specifications and the NI USB-6009 Device Specifications available at ni.com/manuals.

The following table compares the NI USB-6008 and NI USB-6009 devices.

Table 1. NI USB-6008 and NI USB-6009 Comparison
Feature NI USB-6008 NI USB-6009
AI resolution 12 bits differential, 11 bits single-ended 14 bits differential, 13 bits single-ended
Maximum AI sample rate, single channel[1] 10 kS/s 48 kS/s
Maximum AI sample rate, multiple channels (aggregate)[1] 10 kS/s 48 kS/s
DIO configuration Open collector[2] Each channel individually programmable as open collector or active drive[2]

The following figure shows key functional components of the NI USB-6008/6009.

Figure 1. NI USB-6008/6009 Block Diagram

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1 System-dependent.

2 This document uses NI-DAQmx naming conventions. Open-drain is called open collector and push-pull is called active drive.