Upgrade ADC

[shodan_x]

I found a mention of the possibility of replacing the ADC AD9288BST-100.

Will this change with other chips and/or firmware?
On what features it will have an impact?

In your Wiki you tell about “Upto 144MS/s if configured to single channel from .sys version v1.31”
I do not understand how the original AD9288BST-40 is possible at higher speeds 40MS/s. (see Analog Devices AD9288BST-40 datasheet)
It means original AD9288BST-40 is overclocked?
If AD9288BST-40 is overclocked this working stable on 100% ?

Can to improve the stability is desirable to replace me on the ADC model AD9288BST-100?

[geshsoft]

Shodan_x, oversampling would not do much since the analog BW is pretty much limited to about 10MHz (and it is not flat either). If the ADCs are pin by pin compatible then the replacement will require good soldering skills and changing the speed of the clock signal, which I assume is generated by the FPGA. Again, without a better analog front end this modification will not improve things much.

[shodan_x]

Soldering skills is good, this is no problem for me.
ADC AD9288BST-100 is fully compatible.

I dont understand how ADC AD9288BST-40 gets 144 MS/s, when datasheet tell about 40 MS/s is maximum.

I am afraid that the chip is overclocked and this may adversely affect the measurement.

UPD: I read datasheet closer, i realized that if we use a “data align”, then maximum possible speed is 80 MSPS, but not 144 MSPS as in this device.

[chip]

@shodan_x

Soldering skills is good, this is no problem for me.
ADC AD9288BST-100 is fully compatible.

I dont understand how ADC AD9288BST-40 gets 144 MS/s, when datasheet tell about 40 MS/s is maximum.

I am afraid that the chip is overclocked and this may adversely affect the measurement.

UPD: I read datasheet closer, i realized that if we use a “data align”, then maximum possible speed is 80 MSPS, but not 144 MSPS as in this device.

DSO in each channel is 72 MHz, the ADC has a mode when the channels are independent and in turn take data from one input. hence the 144 MHz
but it does not work in current versions

[chip]

@shodan_x

Soldering skills is good, this is no problem for me.
ADC AD9288BST-100 is fully compatible.

I dont understand how ADC AD9288BST-40 gets 144 MS/s, when datasheet tell about 40 MS/s is maximum.

I am afraid that the chip is overclocked and this may adversely affect the measurement.

UPD: I read datasheet closer, i realized that if we use a “data align”, then maximum possible speed is 80 MSPS, but not 144 MSPS as in this device.

chip overclocked, but only a few time mode in which the analog part, too weak