Question

Ɛ ǀŝďƌĂĕƁĞƐ Ğŵ Ƶŵ ƀŶŝďƵƐ Ğŵ ŵŽǀŝŵĞŶƚŽ ƐĞƌĆŽ ĂŶĂůŝƐĂĚĂƐ ĂƚƌĂǀĠƐ ĚĂ ŵĞĚŝĚĂ ĚĂ ĂĐĞůĞƌĂĕĆŽ ĚƵƌĂŶƚĞ ƉĞƌşŽĚŽƐĚĞƚĞŵƉŽ͕ƉŽƌŵĞŝŽĚŽƐŝƐƚĞŵĂĚĞĂƋƵŝƐŝĕĆŽĨŽƌŵĂĚŽƉŽƌ ƋƵĂƚƌŽŵſĚƵůŽƐ͗ƵŵƐĞŶƐŽƌĚĞĂĐĞůĞƌĂĕĆŽ͕ ƵŵĂŵƉůŝĮĐĂĚŽƌ͕Ƶŵ Sample & HoldĞƵŵĐŽŶǀĞƌƐŽƌ͕ͬĐŽŶĨŽƌŵĞĞƐƋƵĞŵĂĂƐĞŐƵŝƌ͘ Sensor

Figura da questão (imagem do caderno de prova)

de Aceleração Conversor Analógico/Digital KƐĞŶƐŽƌĠƵŵĂĐĞůĞƌƀŵĞƚƌŽƋƵĞĐŽŶǀĞƌƚĞůŝŶĞĂƌŵĞŶƚĞůĞŝƚƵƌĂƐĞŶƚƌĞͲϭ͕ϬŵͬƐ 2Ğнϭ͕ϬŵͬƐ 2ĞŵƐŝŶĂůĚĞƚĞŶƐĆŽ V ĞŶƚƌĞͲϴϬϬŵsĞнϴϬϬŵs͘ƐƐĞƐŝŶĂůƉĂƐƐĂƉŽƌƵŵĂŵƉůŝĮĐĂĚŽƌŽ ƉĞƌĂĐŝŽŶĂůĐŽŵŐĂŶŚŽĚĞƚĞŶƐĆŽĚĂĚŽƉŽƌ ŝŶ ǀсϭнZ ͬZ ͕ĞŵƋƵĞZ сZ сϭϬŬё͘hŵĂǀĞǌĂŵƉůŝĮĐĂĚŽ͕ŽƐŝŶĂůs ĠƐƵďŵĞƟĚŽĂƵŵSample & Hold͕ ĐƵũĂ Ĩ g Ĩ g ŽƵƚ ĐŚĂǀĞĚĞĂŵŽƐƚƌĂŐĞŵƉŽĚĞƐĞƌĐŽŶƚƌŽůĂĚĂƉŽƌƐŽŌǁĂƌĞĂƚƌĂǀĠƐĚĞƐĞƵƉŽŶƚŽĚĞĐŽŶƚƌŽůĞ͞Đ͘͟KĐŽŶǀĞƌƐŽƌ ͬĐŽŶǀĞƌƚĞůŝŶĞĂƌŵĞŶƚĞǀĂůŽƌĞƐĞŶƚƌĞͲϮ͕ϬϬsĞн Ϯ͕ϬϬsƉĂƌĂǀĂůŽƌĞƐďŝŶĄƌŝŽƐƋƵĞƉŽĚĞŵ͕ĞŶƚĆŽ͕ƐĞƌůŝĚŽƐ ƉŽƌƐŽŌǁĂƌĞŽŵĞƐƐĞƐŝƐƚĞŵĂĚĞĂƋƵŝƐŝĕĆŽ͕ƐĞƌĆŽĨĞŝƚĂƐĐŽůĞƚĂƐĚĞĚĂĚŽƐ ĚĞϭϬϬϬĂƋƵŝƐŝĕƁĞƐĂƵŵĂƚĂǆĂĚĞ͘ ϱϬϬĂƋƵŝƐŝĕƁĞƐƉŽƌƐĞŐƵŶĚŽ͕ŽƵƐĞũĂ͕ĐĂĚĂĐŽůĞƚĂĚƵƌĂĚŽŝƐƐĞŐƵ ŶĚŽƐ͘ ĂŶĄůŝƐĞĚĞƐƐĞƐŝƐƚĞŵĂĚĞĂƋƵŝƐŝĕĆŽĚĞĚĂĚŽƐƌĞǀĞůĂƋƵĞ

Accepted Answer

B) ŽĐŽŶǀĞƌƐŽƌͬĚĞǀĞƌĄƐĞƌĚĞϭϮŽƵŵĂŝƐ bitsƉĂƌĂƋƵĞĂƐůĞŝƚƵƌĂƐŽďƟĚĂƐƚĞŶŚĂŵƵŵĂƌĞƐŽůƵĕĆŽĚĞ͕ Ϭ͕ϬϬϭŵͬƐ 2.

Answer

A) ŽĂŵƉůŝĮĐĂĚŽƌƚĞŵŐĂŶŚŽƵŶŝƚĄƌŝŽĞĂůƚĂŝŵƉĞĚąŶĐŝĂĚĞĞŶƚƌĂĚĂ͕ ŝƐŽůĂŶĚŽŽƐĞŶƐŽƌĚŽƌĞƐƚŽĚŽĐŝƌĐƵŝƚŽ͘

Answer

C) ŽƐŽŌǁĂƌĞ ƋƵĞ ĨĂƌĄ Ž ƉƌŽĐĞƐƐĂŵĞŶƚŽ ĚĂ ĂƋƵŝƐŝĕĆŽ ŶĞĐĞƐƐŝƚĂƌĄ ƚƌŽĐĂƌ Ž ƐŝŶĂů ĚĂ ůĞŝƚƵƌĂ ĨĞŝƚĂ͕ ũĄ ƋƵĞ Ă ŵŽŶƚĂŐĞŵĚŽĂŵƉůŝĮĐĂĚŽƌĠŝŶǀĞƌƐŽƌĂ͘

Answer

D) ĂĨĂŝǆĂĚĞƉĂƐƐĂŐĞŵĚŽĂŵƉůŝĮĐĂĚŽƌĚĞǀĞĮĐĂƌƉĞůŽŵĞŶŽƐĞŶƚƌĞϬĞϮϱϬ,ǌ͕ĐŽƌƌĞƐƉŽŶĚĞŶƚĞƐăƚĂǆĂĚĞ EǇƋƵŝƐƚ͕ũĄƋƵĞŽĐŽƌƌĞƌĆŽϱϬϬĂƋƵŝƐŝĕƁĞƐƉŽƌƐĞŐƵŶĚŽ͘

Answer

E) ŽSample & HoldǀĂŝƐĞƌůŝŐĂĚŽŶŽŝŶşĐŝŽĚĂĐŽůĞƚĂĚĞĚĂĚŽƐĞĚĞƐůŝŐĂĚŽĂŽƐĞƵĮŶĂů͕ĐŽŵĂĐŚĂǀĞŵĂŶƟĚĂ ĨĞĐŚĂĚĂĚƵƌĂŶƚĞƚŽĚŽƐŽƐϮƐĞŐƵŶĚŽƐĚĞĐĂĚĂĐŽůĞƚĂ͘ 25 E'E,Z/KDWhdK

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