Other Parts Discussed in Thread: INA1650, INA1651
Tool/software:
Good afternoon, I'm in the process to add balanced input and output to a tube hifi preamplifier I'm designing, as part of a new commercial product development.
First question is related to the output, i.e. to the INA1650 which converts from single ended to balanced. I'm starting from the picture reported in the datasheet (figure 62, section 8.2.6):
Here the first questions please:
- I'd like to have your confirmation, if it's possible to power the INA1650 with single supply in this case, connecting Vee to Gnd, and utilizing the internal 1/2 reference, as reported in another section of the datasheet
- Max power voltage is 36 Volt, right ?
- If I understood correctly, the max swing for each output is more or less (load impedance greater than 2Kohm) 29 Volt, right ? i.e. something like 10 VRMS on each leg x 2 (i.e. 10VRMS max at the single ended input)
- Is the high input impedance kept even in this configuration ? This is one of the great plus of INA1650 vs. other similar devices.
Then, - thanks for your patience - I've one question about the input stage, which I plan to deploy around INA1651 (from balanced input to single ended), just one section only:
Again, single 36Volt supply. My question is again about the max output swing in those conditions: is it fair to estimate it's the same 29Volt, i.e. 10VRMS ? Which I guess means 5VRMS max on each input.
