PIC16F18446 FVR presnost interni reference

[Jan Waclawek]

> proc je ta presnost takova tragicka

Lebo to je lacny jednocip (t.j. primarne digitalny IO bez trimrovania apod.)

>externi reference 0.1% s cenou pod 
>1 USD.

Menovite?

wek

----- Original Message ---------------

>dekuji
>
>este by me zajimalo, proc je ta presnost takova tragicka a k cemu se to 
>da pouzit ?
>
>Kdyz dam MCU na LDO, ktere ma vyssi presnost, pak postradam duvod vyuzit 
>to FVR, nehlede na to, ze mohu pouzit externi reference 0.1% s cenou pod 
>1 USD.
>
>
>LK
>
>Dne 13.03.2022 v 16:51 Robert Baranka napsal(a):
>> page 650, 40.4.11 Fixed Voltage Reference (FVR) Specifications v 
>> https://ww1.microchip.com/downloads/en/DeviceDoc/40001985B.pdf
>>
>> Table 40-17.
>> Standard Operating Conditions (unless otherwise stated)
>> Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
>> FVR01 VFVR1 1x Gain (1.024V) -4 — +4 % VDD?2.5V, -40°C to 85°C
>> FVR02 VFVR2 2x Gain (2.048V) -4 — +4 % VDD?2.5V, -40°C to 85°C
>> FVR03 VFVR4 4x Gain (4.096V) -5 — +5 % VDD?4.75V, -40°C to 85°C
>> FVR04 TFVRST FVR Start-up Time — 60 — µs
>>
>> robo
>>
>> Dňa 13. 3. 2022 o 12:16 Libor Konečný napísal(a):
>>> Zdravim
>>>
>>> Nema nekdo prosim informaci, jaka je presnost internich referenci FVR 
>>> v PIC 16Fxxx?
>>>
>>> At hledam jak hledam, tak v PDF neni o tom zminka.
>>>
>>> Diky moc
>>>
>>> Libor
>>>