what is the gain of usb-6353 DAQ when input range is between -100 to 100 mV?

[hemm]

Hi,

simple question I know, but would really appreciate if someone can tell me the gain of usb-6353 DAQ when input range is between -100 to 100 mV.

Well, why not gains of the complete input range then...

–10 V to 10 V 

–5 V to 5 V

–2 V to 2 V 

–1 V to 1 V 

–500 mV to 500 mV 

–200 mV to 200 mV

–100 mV to 100 mV 

Many thanks in advance!

Sincerely,

Hemm

[johnsold]

Hemm,

Gain is a relative term.  The X Series Users Manual (page 4-1) indicates that these devices use the NI-PGIA (programmable gain instrumentation amplifier) between the input multiplexer and the A/D converter.  It also indicates that the PGIA can amplify or attenuate.  Since the input range of the A/D converter is not specified, there is no way to tell which input ranges use amplification and which use attenuation.

Compared to the +/-10 V range the +/-100 mV range is amplified by a factor of 100.

Lynn

[ThiCop]

Hello Hemm,

Please let me know if you have any further questions about this.

I think I also received an e-mail from you in our inbox.

A correction to my reply in that e-mail: The [-0.1V, 0.1V] range is supported. (I must have been looking at another datasheet that day)