National Instruments PC-LPM-16/PnP 사용자 설명서

다운로드
페이지 125
 
 
 National Instruments Corporation
A-1
PC-LPM-16/PnP User Manual
 
Specifications
 
Appendix
 
A
 
This appendix lists the PC-LPM-16PnP specifications. These 
specifications are typical at 25
 
°
 
 C unless otherwise specified. The 
operating temperature range is 0
 
°
 
 to 70
 
°
 
 C.
 
PC-LPM-16PnP Board
 
Analog Input
Input Characteristics
 
Number of channels ........................... 16 single-ended
Type of ADC...................................... Successive approximation
Resolution .......................................... 12 bits, 1 in 4,096
Max sampling rate .............................. 50 kS/s
Input signal ranges .............................
 
±
 
5 V, 
 
±
 
2.5 V, 0 to 10 V, or 
0 to 5 V, software-selectable
Input coupling .................................... DC
Overvoltage protection .......................
 
±
 
45 V powered on, 
 
±
 
35 V powered off
    Inputs protected ....................... ACH<0..15>
FIFO buffer size ................................. 256 S
Data transfers ..................................... Interrupts, programmed I/O
 
Transfer Characteristics
 
Relative accuracy ..............................
 
±
 
1.0 LSB typ, 
 
±
 
1.5 LSB max 
Integral nonlinearity ...........................
 
±
 
0.5 LSB max
Differential nonlinearity .....................
 
±
 
1.0 LSB max
(For more information on nonlinearity and quantization error, see 
the 
 
 
Offset error after calibration ...............
 
±
 
1.0 LSB typ, 
 
±
 
2.0 LSB max
 
 
a.Book : I.Appendix A  Page 1  Wednesday, November 20, 1996  6:36 PM