National Instruments DAQCard-1200 - Manual (Page 7)

Contents
DAQCard-1200 User Manual viii © National Instruments Corporation
Figure 3-1. DAQCard-1200 I/O Connector Pin Assignments................................. 3-2
Figure 3-2. DAQCard-1200 Instrumentation Amplifier.......................................... 3-5
Figure 3-3. Differential Input Connections for Grounded Signal Sources .............. 3-9
Figure 3-4. Differential Input Connections for Floating Sources............................ 3-10
Figure 3-5. Single-Ended Input Connections for Floating Signal Sources ............. 3-12
Figure 3-6. Single-Ended Input Connections for Grounded Signal Sources........... 3-13
Figure 3-7. Analog Output Signal Connections ...................................................... 3-14
Figure 3-8. Digital I/O Connections ........................................................................ 3-16
Figure 3-9. Mode 1 Timing Specifications for Input Transfers............................... 3-19
Figure 3-10. Mode 1 Timing Specifications for Output Transfers ............................ 3-20
Figure 3-11. Mode 2 Timing Specifications for Bidirectional Transfers .................. 3-21
Figure 3-12. EXTCONV* Signal Timing ................................................................. 3-22
Figure 3-13. Posttrigger DAQ Timing....................................................................... 3-23
Figure 3-14. Pretrigger DAQ Timing ........................................................................ 3-24
Figure 3-15. Interval-Scanning Signal Timing .......................................................... 3-25
Figure 3-16. EXTUPDATE* Signal Timing for Updating DAC Output .................. 3-26
Figure 3-17. Event-Counting Application with External Switch Gating .................. 3-27
Figure 3-18. Frequency Measurement Application ................................................... 3-29
Figure 3-19. General-Purpose Timing Signals .......................................................... 3-30
Figure 4-1. DAQCard-1200 Block Diagram ........................................................... 4-1
Figure 4-2. PC Card I/O Interface Circuitry Block Diagram .................................. 4-2
Figure 4-3. Timing Circuitry ................................................................................... 4-4
Figure 4-4. Analog Input Circuitry .......................................................................... 4-6
Figure 4-5. Analog Output Circuitry ....................................................................... 4-11
Figure 4-6. Digital I/O Circuitry.............................................................................. 4-13
Tables
Table 2-1. Analog I/O Settings............................................................................... 2-3
Table 2-2. Analog Input Modes for the DAQCard-1200 ....................................... 2-4
Table 3-1. Bipolar and Unipolar Analog Input Signal Range Versus Gain ........... 3-5
Table 3-2. Recommended Input Configurations for Ground-Referenced
and Floating Signal Sources.................................................................. 3-7
Table 3-3. Port C Signal Assignments ................................................................... 3-17
Table 4-1. Analog Input Settling Time Versus Gain.............................................. 4-10
Table 4-2. DAQCard-1200 Maximum Recommended Data Acquisition Rates .... 4-10
Table C-1. DAQCard-1200 Power-Management Modes ....................................... C-1