PSpice stud. mixed mode A/D

[___]

PSpice 9.1 student

I have a Schmitt Trigger with an op.amp.

If i try to drive a TTL AND with the output
of this op.amp. I got nothing.

Was wondering, how (if) I can drive a digital input
(gate) with an analogue signal.

Thanks in advance

 

[Jim Thompson]

On Wed, 08 Mar 2006 13:08:21 GMT, ___ <none@host.com> wrote:

PSpice 9.1 student

I have a Schmitt Trigger with an op.amp.

If i try to drive a TTL AND with the output
of this op.amp. I got nothing.

Was wondering, how (if) I can drive a digital input
(gate) with an analogue signal.

Thanks in advance

Please elaborate on what you are attempting. You just connect them.
Do you have enough signal?

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

 

[Charlie Edmondson]

Jim Thompson wrote:

On Wed, 08 Mar 2006 13:08:21 GMT, ___ <none@host.com> wrote:


PSpice 9.1 student

I have a Schmitt Trigger with an op.amp.

If i try to drive a TTL AND with the output
of this op.amp. I got nothing.

Was wondering, how (if) I can drive a digital input
(gate) with an analogue signal.

Thanks in advance


Please elaborate on what you are attempting. You just connect them.
Do you have enough signal?

...Jim Thompson
When you say an opamp, what part are you using? Sounds like you grabbed

some non-simulation part, or you don't have power supplies on the opamp
or something...

Charlie