www.instrument.com - Friday, May 18, 2012
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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.
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•16 Single-Ended or 8 Differential Inputs |
•12-Bit Resolution A/D |
•Programmable Gains - 1, 10, 100, 1000 |
Parameter |
Conditions |
Specifications |
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Analog Outputs |
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Number of Channels |
Single-ended |
16 |
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Differential8 |
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Resolution |
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12 bits (1 part in 4,096) |
Voltage Ranges |
Linear operation |
±5V, ±10V, 0 to 10V full scale |
Overvoltage Protection |
Power on |
±35V |
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Power off |
±20V |
Gain Accuracy |
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Gain = 1 |
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0.012% |
Gain = 10 |
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0.049% |
Gain = 100 |
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0.049% |
Gain = 1000 |
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0.049% |
Offset Voltage |
RTO |
±2.44mV |
Bias Current |
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30nA |
Input Impedance |
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10G ohms/40pF |
Common Mode |
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Range (Vrange) |
Vcm = Vrange - (Vdiff * Gain)/2 |
10V |
Rejection Error |
60Hz, 100 ohm imbalance, 10V range |
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Gain = 1 |
0.04LSB/V (-80dB) |
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Gain = 10 |
0.07LSB/V (-95dB) |
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Gain = 100 |
0.07LSB/V (-95dB) |
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Gain = 1000 |
7.3LSB/V (-95dB) |
Noise |
Input grounded at connector; |
0.5LSB/2LSB |
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RMS/P-P, Gain = 1 |
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Monotonicity |
No missing code |
12 bits |
Linearity Error |
Gain = 1, 10 |
±0.04% ,1.6LSB |
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Gain = 100 |
±0.05%, 2LSB |
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Gain = 1000 |
±0.065%, 2.7LSB |
System Throughput* |
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Multichannel Analog Input |
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25kHz |
Physical Characteristics |
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Power Requirements** |
+5V |
200mA maximum |
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+15V |
32mA maximum |
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-15V |
56mA maximum |
Operating Temperature Range |
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0 to 70° C |
Copyright 1996-2012 Intelligent Instrumentation Inc.