LPC Microcontrollers中的主题 Re: LPC4370 ADCHS analog bandwidth

LPC4370 ADCHS analog bandwidth

lpcware — Wed, 15 Jun 2016 18:35:01 GMT

Content originally posted in LPCWare by svenb on Fri Dec 05 07:17:00 MST 2014
Hi!

What is the analog bandwidth of the ADCHS in the LPC4370? I couldn't find that information in the user manual.

Thanks and best regards,
Sven

Re: LPC4370 ADCHS analog bandwidth

lpcware — Wed, 15 Jun 2016 18:35:01 GMT

Content originally posted in LPCWare by svenb on Tue Dec 09 04:00:36 MST 2014
Nobody? :(

Re: LPC4370 ADCHS analog bandwidth

lpcware — Wed, 15 Jun 2016 18:35:02 GMT

Content originally posted in LPCWare by TheFallGuy on Tue Dec 09 04:11:39 MST 2014
The LPC4370 data sheet says:

Quote:
One 6-channel, 12-bit high-speed ADC (ADCHS) with DMA support and a data
conversion rate of 80 MSamples/s.

Is this what you are asking?

Re: LPC4370 ADCHS analog bandwidth

lpcware — Wed, 15 Jun 2016 18:35:03 GMT

Content originally posted in LPCWare by svenb on Tue Dec 09 10:21:05 MST 2014
Thanks for your reply but no, that is not the question. This merely states that the sample rate is 80 MSa/s, which would allow sampling a band which is 40 MHz wide. It does however not tell anything about where that band can be centered (is e.g. 120-160 MHz possible?).
Look for example at this Analog Devices data sheet: http://www.analog.com/static/imported-files/data_sheets/AD9283.pdf
The ADC is specified for 50 / 80 / 100 MSa/s, and for an analog bandwidth of 475 MHz (page 2, under "Analog input", last value). This is the information I'm looking for in case of the LPC4370.

Best regards,
Sven