| ??? 08/14/12 16:05 Read: times |
#188072 - Analog Input Range. Responding to: ???'s previous message |
Anil Gupta said:
Have any body used A/D Converter in 89LPC9XX series Micros?
(1) What is reference voltage for A/D converter in 89LPC917? (2) What is A/D input voltage range in 89LPC917? in data sheet it is mentioned as Vss-0.2V to Vss+0.2 V? Well it looks like the table in section 13.2 of the data sheet may be off the mark with regards to the analogue input voltage range. They probably meant Vss-0.2V and Vdd+0.2V. My guess is that the valid A/D converter operational range is from Vss to Vdd with an input at Vss resulting in a conversion value of 0x00 and an input at Vdd producing a conversion result of 0xFF. Michael Karas |
| Topic | Author | Date |
| A/D Converter in 89LPC9xx series | 01/01/70 00:00 | |
Analog Input Range. | 01/01/70 00:00 |