| ??? 02/03/10 08:52 Read: times |
#172861 - gain Responding to: ???'s previous message |
Thanks for the replies.
Rob Klein said:
Yes, G is the IA's gain and yes, you would add the factor ±50/200.
However, these are the typical values, which you should never base your design on. - Rob. That was circled just to clarify the spec. Stefan Kanev said:
I'm lazy to download and read whole document , but
+-50 +- 500/G , when G=100, means - You'll have about +-50microvolt +- 5microvolt initial offset recalculated to input - i think "RTI" is "relative to input" . I'm not very sure with G=100 what will be final offset 50+500 or 55*100 - probably 5500 microvolt is true. This parameter is not so important as temperature drift - ( 0.5 + 20/100 ) * 100 = 70 microvolt per one celsium. Each celsium will add 70 microvolt on INA's output - how strong is Your signal? is AC or DC? regards Not using this opamp at the moment but that spec clarification was a part of general reading . RTI to my knowledge is anything that is ' refered to inputs' or probably 'relative' could be used. Regards -Ap |
| Topic | Author | Date |
| IA datasheet spec | 01/01/70 00:00 | |
| Yes and no | 01/01/70 00:00 | |
| G is gain | 01/01/70 00:00 | |
| Celsius | 01/01/70 00:00 | |
gain | 01/01/70 00:00 |