Looking for PXI product with similar functionality

[stozhary]

Looking for PXI product with similar functionality

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Input channels                    2
Input couplings                   AC, DC, GND
Maximum sampling rate     1 MS/s
A/D conversion resolution  16 bits (2400 LSB/div)                                                                      
Input type                             Isolated unbalanced
Frequency range (-3 dB)     DC, up to 300 kHz (20 V/div to 5 mV/div)
Input range
                       (10:1) 10 mV/div to 200 V/div (in steps of 1, 2, or 5)
                         (1:1) 1 mV/div to 20 V/div (in steps of 1, 2, or 5)
Maximum input voltage (1 kHz or less)
Direct input (1:1) 6, 10       140 V (DC + ACpeak)
Maximum allowable in-phase voltage   
Main unit only (1:1) 11        42 V (DC + ACpeak) (CAT I and CAT II, 30 Vrms)
DC accuracy
   5 mV/div to 20 V/div       ±(0.25% of 10 div)
   2 mV/div                         ±(0.3% of 10 div)
   1 mV/div                         ±(0.5% of 10 div)
Input impedance               1 M\u2126 ± 1%, approx. 35 pF
Connector type                 Isolated type BNC connector
Input filter                          OFF, 400 Hz, 4 kHz, 40 kHz
Temperature coefficient
                Zero point 5 mV/div to 20 V/div: ±(0.02% of 10 div)/°C (typical value)
                               2 mV/div: ±(0.05% of 10 div)/°C (typical value)
                               1 mV/div: ±(0.10% of 10 div)/°C (typical value)          
                         Gain 1 mV/div to 20 V/div: ±(0.02% of 10 div)/°C (typical value)

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[jaced]

It would be much easier if you could narrow down which specs are most important to you for your application, there will be tradeoffs on every board. Knowing what you need rather than another card’s specification will be much more helpful.

[Tom_W_[DE]]

Hi stozhary-

The PXI-6120 comes to mind as one of the best options from a purely DAQ standpoint.  It features 1MS/s/ch simultaneous sampling on 4 AI channels and up to +-42V input at 16-bit resolution.  It also features AC/DC coupling and a 100kHz lowpass front-end filter that are both enabled/disabled through software (NI-DAQmx). 

The biggest missing point from your requirements that I see is the isolated inputs and BNC connectivity.  This document has more information about the specific functional details of the NI 6120 device.

Hopefully this helps-

Message Edited by Tom W [DE] on 01-21-2008 01:07 PM