Replacement board for ADuC842 with dual ADC, single DAC, low noise, compact size

Hi everyone,I am looking for a proper board to replace an ADuC842 for an embedded  application. The important points upon choosing are the following:

1. I need two ADCs and one DAC with similar (or better) noise characteristics then the ADuC842. This is very important.
2. Physical size of the board should be smaller.3. Clock cycle can be slightly lower, it's not critical.
Could you please recommend something

Hi Geza Kiss, You can find some ADuC842 Equivalent board online on many electronics components selling website. I recommended you some famous sellers like Gartner, Amazon. I believe UTSOURCE  fits your needs too. This is also an emerging electronic component selling company all over the world. Thanks, Jay Solanki 

Not sure what you mean by proper board? Have a look at the Silicon Labs C8051F06 series. Obviously an 8051 core if you want to stay with hardware you are familiar with. Not sure if their demo board is smaller though.If you want to move away from the 8051/2 core, then there a many that would do it, most of the higher end 8/16  bit processors have 12 bit ADCs and DACs. There are also 32 bit ARM processors out there as well. One consideration is the programming side of it, you have not commented on this. Are you comfortable having to change to to a new tool set and processor family,cheers,Richard

Dear Richard,
thank you very much for the reply and sorry for being ambiguous. By proper I have meant a board with similar performance. I have no problem with leaving the 8051 core and to change to a new tool. I am using  the ADuC board to realize a very simple digital PID with a regulation bandwidth of only a couple of kHz, and just want to replace it with a smaller electronics, that's all.I was also considering using an external, high-precision ADC/DAC circuitry (e.g.RB-Wav-08 that I have bought long time ago for a Raspberry pi), but I am still unsure what kind of microcontroller to use in combination.
One additional note is that I want to spare any longish hardware development, this is why I said "board". But I apart from that I am really open to ANY solutions.

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