First question:
On page 3 it has two different types of casing packages. The chip I has the text: JM024AD, DAC0800LCN, DAC-08EP on it, which chip is it, the one on the left or the one on the right? I suspect its the one on the left as the chip has that DOT which indicates where pin 1 is as shown on the figure on the left.
The right side is a surface mount device, the pins are bent at right angles to the chip, it appears you have the DIP dual in line package, pins thru the pcb or a socket.
Second question:
I've wired this chip up like this:
**broken link removed**
In the typical application figure 8 labelled "Symmetrical offset binary operation" which is the mode of operation I'm after. If I wire up Vref(+) to +10V, Vref(-) to -10V and the rails at +/-15V, as shown in my drawing, do I need that op amp out the front? Will Io spit out -10 to +10V depending on the binary input? (00000000=-10V, 11111111=+10V).
If thats the case, if you look at the typical application noted on page 1, figure 1, why have they got the resistors on the output to what appears to be Vref(+). Do I need these resistors? ie. is the chip open collector? or can I just take the voltage (+/-10V, 20vp-p) out of Io without any external resistances in place.
Your help is appreciated.
Thank you