Misalai ne ADC?

Muhimmiya ADC na nufin?

Bayani a kan Analog to Digital Converter

Analog to Digital Converter (ADC) shine tutsi mai girma da ke yawan shiga alama mai tsarki kamar alama mai girma. 

 Takamatako na ADC

• Shiga da Kula

• Quantizing da Encoding

Shiga da Kula

A cikin Shiga da Kula (S/H), ana shiga alama mai girma kuma ana kula haka har zuwa lokacin da yake. Wannan ya tabbatar da ziyararta a cikin alama mai shiga wanda za su iya haƙa tsari a kan giro. Tsarin shiga mafi kyau yana da muhimmanci da yake dubu daga tsari na uku a kan alama mai shiga.

Quantizing da Encoding

Don in fahimtar quantizing, za a iya nuna bayanan Resolution wanda ake amfani da ita a cikin ADC. Wannan shine mutane mafi kyau a cikin alama mai girma wanda za su haƙa giro a cikin alama mai tsarki. Wannan ta ɗauka quantization error.

V → Tsari na voltage

2N → Jami'ar yanayi

N → Jami'ar bits a cikin alama mai tsarki

Quantizing shine takamatako na kan tsari mai girma don kula shi a kan yanayi masu inganci, ko quanta, sannan kuma ya ba alama mai shiga a kan yanayin daidai.

Encoding ya ba alama mai tsarki daidai a kan har yanayi (quantum) na alama mai shiga. Takamatako na quantizing da encoding an nuna a cikin jadawalin da na baya.

Daga jadawalin da na baya za su iya samun cewa kawai babban alama mai tsarki ne wanda ake amfani da shi don nuna duka ɗan tsari a kan kungiyar. Saboda haka, za su iya faruwa, kuma wannan suna quantization error. Wannan shine fitowa wanda quantization ya yi. A nan, mafi quantization error shine

Yadda A Zama Tsari na ADC

Don in zama tsari na ADC, an amfani da biyu na hukumar: zama resolution da kuma zama tsarin shiga. Wannan an nuna a cikin shekarar da na baya (shekarar 3).

Abubuwan da Amfani da ADCs

Successive Approximation ADC: Wannan converter ya kula alama mai shiga da output na internal DAC a kuli ƙarin. Ya fiye da ma'aikata mafi yawa.

Dual Slope ADC: Yana da tsari mafi yawa amma mafi yawa a yi aiki.

Pipeline ADC: Ya fiye da ma'aikata da Two Step Flash ADC.

Delta-Sigma ADC: Yana da resolution mafi yawa amma mafi yawa saboda over sampling.

Flash ADC: Yana da ma'aikata mafi yawa amma mafi yawa.

Wasu: Staircase ramp, Voltage-to-Frequency, Switched capacitor, tracking, Charge balancing, and resolver.

Amfani da ADC

• An amfani da shi tare da transducer.

• An amfani da shi a cikin computer don in giro alama mai girma zuwa alama mai tsarki.

• An amfani da shi a cikin cell phones.

• An amfani da shi a cikin microcontrollers.

• An amfani da shi a cikin digital signal processing.

• An amfani da shi a cikin digital storage oscilloscopes.

• An amfani da shi a cikin scientific instruments.

• An amfani da shi a cikin music reproduction technology etc.