First, please specify resolution and speed of the ADC and DAC. In most cases, upto 8 bits DAC can be created very cheap by PWM methods.
Visit Analog Devices. They have several options available. Also check Cygnal where you will find (too many) options. Silabs as hot_chmock suggested also have many parts but I found them to be expensive.
Yes, Silab controllers are very atractive.
But there are too moments:
- they are too expensive and too good,
- is it necessary to buy their kit to get JTAG cable ?
I've found parallel JTAG adapter schematics from www.dilogic.hr,
but they suggest only demo software.
Is it possible to get schematics of a serial JTAG adapter?