sample hold HS9704

ADAM75 · Joined: 16 Apr 2009 Posts: 6

hello
Here is my project:
I have 3 analog input (current i1, i2, i3) I will put in a blocker echantiolloneur " HS9704" then a single output that will attack the PIC 16F877 by ports RA0.
port b I use it as output (RB0, RB1) to activate the buffer to hold the sampler and RB2 for hold all and then I pulled the signal via the channel A0, then the A / D and towards the end serial link and to the pc
1 I known a bit about the scheduling of the conversion but I do not know how to use the ports and then pulled out the signal (PIC 16F877 liaison and HS9704) if you have an idea or source code will be pleased and thank you

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

You're talking about some ancient chip made in 1986 by Hybrid Systems.
You can find the datasheet at http://www.datasheetarchive.com
It's a quad 12-bit Sample/Hold chip. My advice is that you should look
at Texas Instruments (Burr-Brown) http://www.ti.com and find a modern
chip.