D
David Novak
- Jan 1, 1970
- 0
I find two input voltage specifications in the LM339 data sheet, Vidr
(input differential range = 36V) and Vicmr (input common mode range,
-0.3V to Vcc). I understand Vidr, but how do I interpret Vicmr? Is this
stating the voltage range of the inputs if they move together at the
same rate? In other words, the DC offset that effects both inputs equally?
Since the Vidr specification does not refer to Vcc, it appears that I
can set IN- = 1V, Vcc = 5V and let IN+ swing from 0V to 36V. Is this
correct? I am worried about letting either input exceed Vcc.
Thanks,
David
(input differential range = 36V) and Vicmr (input common mode range,
-0.3V to Vcc). I understand Vidr, but how do I interpret Vicmr? Is this
stating the voltage range of the inputs if they move together at the
same rate? In other words, the DC offset that effects both inputs equally?
Since the Vidr specification does not refer to Vcc, it appears that I
can set IN- = 1V, Vcc = 5V and let IN+ swing from 0V to 36V. Is this
correct? I am worried about letting either input exceed Vcc.
Thanks,
David