Measurement-computing USB-7204 Manuel d'utilisateur

USB-7204 12-Bit, 50 kS/s, Multifunction DAQ BoardDocument Revision 11 December 2014 © Copyright 2014 User's Guide

10 Chapter 3 Functional Details Analog input modes The USB-7204 can acquire analog input data in software paced and continuous scan modes. Software p

USB-7204 User's Guide Functional Details 11 USB connector The USB connector provides +5 V power and communication. The voltage supplied through

USB-7204 User's Guide Functional Details 12 Sync jumper (P6) The Sync jumper internally connects the SYNC pin on the Trigger/Sync connector to t

USB-7204 User's Guide Functional Details 13 Figure 4. Screw terminal pinout Signal connections Analog input You can connect up to eight analog

USB-7204 User's Guide Functional Details 14 A low-noise precision programmable gain amplifier (PGA) is available on differential channels to pro

USB-7204 User's Guide Functional Details 15 Figure 7. Differential voltage example: common mode voltage of –7 V Since the analog inputs are res

USB-7204 User's Guide Functional Details 16 When configured for input, the digital I/O terminals can be used to detect the state of any TTL leve

USB-7204 User's Guide Functional Details 17 terminal. Measurement Computing highly recommends that you figure in a safety factor of 20% below th

USB-7204 User's Guide Functional Details 18 error. The typical offset error specification on the ±10 V range is ±9.77 mV. Offset error affects a

USB-7204 User's Guide Functional Details 19 Figure 12. Error band plot Channel gain queue Use the device's channel gain queue to set up a

HM USB-7204 Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Thank you for choosing

USB-7204 User's Guide Functional Details 20 Mechanical drawing Figure 13. Circuit board dimension

21 Chapter 4 Specifications All specifications are subject to change without notice. Typical for 25°C unless otherwise specified. Specifications in i

USB-7204 User's Guide Specifications 22 Note 1: Input current is a function of applied voltage on the analog input channels. For a given input

USB-7204 User's Guide Specifications 23 Table 6. Noise performance, differential mode Range Typical counts Least significant bitroot mean squ

USB-7204 User's Guide Specifications 24 Digital input/output Table 11. Digital I/O specifications Parameter Specification Digital type CMOS

USB-7204 User's Guide Specifications 25 Counter Table 14. Counter specifications Parameter Specification Pin name (Note 9) CTR Counter type E

USB-7204 User's Guide Specifications 26 Power Table 18. Power specifications Parameter Conditions Specification Supply current (Note 10) 80

USB-7204 User's Guide Specifications 27 General Table 19. General specifications Parameter Specification Device type USB 2.0 (full-speed) Devi

USB-7204 User's Guide Specifications 28 Table 23. Differential mode pinout Pin Signal Name Pin Signal Name 1 CH0 IN HI 21 Port 0 Bit 0 2

USB-7204 User's Guide Specifications 29 OEM connector and pinout (P4) Table 25. OEM connector specifications Parameter Specification Connector

3 Table of Contents Preface About this User's Guide ...

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USB-7204 User's Guide 4 Microcontroller ...

5 Preface About this User's Guide This document describes the Measurement Computing USB-7204 data acquisition device and lists device specificat

6 Chapter 1 Introducing the USB-7204 The USB-7204 is a USB 2.0 full-speed device that provides the following features:  Eight channels of 16-bit an

USB-7204 User's Guide Introducing the USB-7204 7 USB-7204 block diagramUSB-7204 functions are illustrated in the block diagram shown here.Figure

8 Chapter 2 Installing the USB-7204 Unpacking As with any electronic device, you should take care while handling to avoid damage from static electric

USB-7204 User's Guide Installing the USB-7204 9 Calibrating the hardware Factory calibration The Measurement Computing Manufacturing Test depart