www.instrument.com - Friday, August 29, 2008
Printer-friendly version of the page "PCI-20002M-1A Analog Input Module"
(URL: http://www.edasce.com/.html)
| |
|
25kHz General Purpose Analog Input Module
The PCI-20002M-1 adds 16 single-ended or 8 differential analog input channels to any expandable Intelligent Instrumentation board. Input multiplexers select any one of 16 single-ended input channels. Alternatively, you can program the multiplexer for eight differential channels via jumpers. You can also add additional input channels using the optional PCI-20031M-1 Expander/Sequencer Module. Each module adds 32 single-ended (or 16 differential) channels. A high-performance, differential input, programmable gain amplifier provides signal scaling and common-mode rejection. Gains of 1, 10, 100 and 1000 are available under software control. The 12-bit A/D converter can be set up for an input range of ±5V, 0 to 10V or ±10V full scale. This module synchronizes the start of a new A/D conversion to a software-generated command. The offset voltage and gain accuracy are calibrated at the factory, but you can also calibrate them for optimum performance.
The PCI-20033A-1 is a module extender that facilitates access to the calibration potentiometers on the PCI-20002M-1 Module. The extender fits between the connectors on the carrier and on the module. The PCI-20033A-1 can also be useful with other modules in system troubleshooting situations.
|
•16 Single-Ended or 8 Differential Inputs |
•12-Bit Resolution A/D |
•Programmable Gains - 1, 10, 100, 1000 |
Parameter |
Conditions |
Specifications |
|
|
|
Analog Outputs |
|
|
Number of Channels |
Single-ended |
16 |
|
Differential8 |
|
Resolution |
|
12 bits (1 part in 4,096) |
Voltage Ranges |
Linear operation |
±5V, ±10V, 0 to 10V full scale |
Overvoltage Protection |
Power on |
±35V |
|
Power off |
±20V |
Gain Accuracy |
|
|
Gain = 1 |
|
0.012% |
Gain = 10 |
|
0.049% |
Gain = 100 |
|
0.049% |
Gain = 1000 |
|
0.049% |
Offset Voltage |
RTO |
±2.44mV |
Bias Current |
|
30nA |
Input Impedance |
|
10G ohms/40pF |
Common Mode |
|
|
Range (Vrange) |
Vcm = Vrange - (Vdiff * Gain)/2 |
10V |
Rejection Error |
60Hz, 100 ohm imbalance, 10V range |
|
|
Gain = 1 |
0.04LSB/V (-80dB) |
|
Gain = 10 |
0.07LSB/V (-95dB) |
|
Gain = 100 |
0.07LSB/V (-95dB) |
|
Gain = 1000 |
7.3LSB/V (-95dB) |
Noise |
Input grounded at connector; |
0.5LSB/2LSB |
|
RMS/P-P, Gain = 1 |
|
Monotonicity |
No missing code |
12 bits |
Linearity Error |
Gain = 1, 10 |
±0.04% ,1.6LSB |
|
Gain = 100 |
±0.05%, 2LSB |
|
Gain = 1000 |
±0.065%, 2.7LSB |
System Throughput* |
|
|
Multichannel Analog Input |
|
25kHz |
Physical Characteristics |
|
|
Power Requirements** |
+5V |
200mA maximum |
|
+15V |
32mA maximum |
|
-15V |
56mA maximum |
Operating Temperature Range |
|
0 to 70° C |
Copyright 1996-2008 Intelligent Instrumentation Inc.