??? 06/26/06 14:11 Read: times |
#119108 - Data sheets & app notes are your friends Responding to: ???'s previous message |
Rajendra,
If you would take the time to read the data sheet, you will find: 1. This is a sloooow A/D. Conversions per second, not hundreds or thousands of conversions per second! 2. You can't just change the clock to change the conversion rate. This is a dual-slope A/D, which means that it uses external capacitors for the slope timing. The capacitor values and clock frequency are related to the desired conversion rate. The equations are in the data sheet and several app notes (Intersil, Maxim, TI). 3. Because dual-slope A/D's are slow to convert they are best used to measure things that do not change rapidly. I used a similar A/D in a digital panel meter that was used to monitor temperature or flow or other slowly changing phenomena. Now, where did you hear that you can increase the count to 1200000? tom |
Topic | Author | Date |
7135 ADC COUNTS | 01/01/70 00:00 | |
4.5 digit converter! | 01/01/70 00:00 | |
+/- | 01/01/70 00:00 | |
to steve.. | 01/01/70 00:00 | |
Datasheet ? | 01/01/70 00:00 | |
Higher sampling speed or resolution? | 01/01/70 00:00 | |
still not getting the things I want.. | 01/01/70 00:00 | |
mechanical problem![]() | 01/01/70 00:00 | |
Data sheets & app notes are your friends | 01/01/70 00:00 | |
leaving specific n umbers alone, there i | 01/01/70 00:00 | |
why would you connect a BCD converter de | 01/01/70 00:00 |