National Instruments USB-6008/6009 Hardware,

Hardware

The following block diagram shows key func tional components of the

USB-6008/6009.

Figure 3. Device Block Diagram

P1.<0..3>

P0.<0..7>

Digital I/O Terminal Block

AI <0..7>

AO 0

AO 1

Analog I/O Terminal Block

+2.5 V/CAL

+5 V/200 mA

8 Channel

12/14b ADC

12b DAC

USB Microcontroller

SPI

External

Power

Supply

Vbus

Full-Speed USB Interface

USB

PFI 0

Contents

Main USER GUIDE AND SPECIFICATIONS USB-6008/6009 Introduction Safety Guidelines Page Software VI Logger Hardware The following block diagram shows key func tional components of the USB-6008/6009. Figure 3. Device Block Diagram Setting Up Hardware I/O Connector Page Signal Descriptions Analog Input Analog Input Circuitry MUX PGA A/D Converter AI FIFO Analog Input Modes Connecting Differential Voltage Signals USB-6008/6009 User Guide and Specifications 12 ni.com Figure 7. Example of a Differential 20 V Measurement Connecting Reference Single-Ended Voltage Signals Digital Trigger Analog Output Analog Output Circuitry DACs Connecting Analog Output Loads Minimizing Glitches on the Output Signal Digital I/O Digital I/O Circuitry Source/Sink Information I/O Protection Power-On States Static DIO Event Counter Reference and Power Sources +2.5 External References +5 V Power Source Specifications Analog Input Analog Output Digital I/O External Voltage Counter Bus Interface Power Requirements Physical Characteristics Safety Standards Voltages Hazardous Locations Environmental Electromagnetic Compatibility CE Compliance Where to Go for Support