# Connecting to external ADC

**URL:** https://discuss.pynq.io/t/connecting-to-external-adc/7061
**Category:** Community corner
**Created:** [May 26, 2024, 3:45am UTC](https://discuss.pynq.io/t/connecting-to-external-adc/7061 "2024-05-26T03:45:24Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![ag2906](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/ag2906/32/5919_2.png) [@ag2906](https://discuss.pynq.io/u/ag2906)
#### Post date: [May 26, 2024, 3:45am UTC](https://discuss.pynq.io/t/connecting-to-external-adc/7061/1 "2024-05-26T03:45:24Z")

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Hello,

I want my Pynq board to extract and process data from an external ADC (LTC2324), and would like to know if the board can support my ADC. The LTC2324 has a rate of 2 Msps and would I have to interleave 2 or more ADCs across all I/Os as indicated by Cathal in the forum.

Thanks,  
Avantika

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### Author: ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)
#### Post date: [May 27, 2024, 12:38pm UTC](https://discuss.pynq.io/t/connecting-to-external-adc/7061/2 "2024-05-27T12:38:36Z")

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Hi @ag2906,

Welcome to the PYNQ community.

What PYNQ board are you using?  
How do you plan to interface to this chip?

Mario

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### Author: ![ag2906](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/ag2906/32/5919_2.png) [@ag2906](https://discuss.pynq.io/u/ag2906)
#### Post date: [May 27, 2024, 2:16pm UTC](https://discuss.pynq.io/t/connecting-to-external-adc/7061/3 "2024-05-27T14:16:51Z")

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Hello @marioruiz,

Thank you for getting back so promptly.

I am using the Pynq Z2 board, and I am planning to interface LTC2324 with Pynq via the SPI interconnects. I am quite sure that the hardware connections I did while connecting the ADC to pynq were fine, it’s on Vivado where I’m not sure.

Thanks,  
Avantika

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### Author: ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)
#### Post date: [May 27, 2024, 2:38pm UTC](https://discuss.pynq.io/t/connecting-to-external-adc/7061/4 "2024-05-27T14:38:04Z")

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I imagine that you are connecting it external ADC to the PL. So, I suggest you check the AXI Quad SPI documentation [AXI Quad SPI](https://www.xilinx.com/products/intellectual-property/axi_quadspi.html)
