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HomeParauMe pehea e whakarei ai te INA333 i nga tohu raiti iti

NGĀ WAIRANGI HIKORO I roto-STOCK.
NGA KORERO KAUPAPA.

Nga Porowhita Whakakotahi, Nga Pūrere Hiko me nga Waahanga Hau
— Tautoko Tonu Tonu

Tikina te korero inaianei

Me pehea e whakarei ai te INA333 i nga tohu raiti iti

Wā: 2026/06/12

Tirotiro: 58

Ko te INA333 IC whakaritenga taputapu i hangaia hei whakatau tika i nga tohu rerekē iti rawa. Ka whakamārama tēnei tuhinga i ngā āhuatanga matua o te INA333, ngā mahi pin, ngā wāhanga ōrite, te kaupapa mahi, te whakamahi tika, ngā tono i te ao, me te whakatauritanga ki ērā atu whakaritenga taputapu.

Kākau

INA333 Instrumentation Amplifier IC

INA333 Whakaritenga taputapu IC

Ko te INA333 he IC whakaritenga taputapu tika me te mana iti e whakamahia ana ki te whakarei i nga tohu rerekē iti rawa mai i nga pūranga. He tika mo ngā tono e hiahia ana ki te whakatau tika i ngā tohu, pērā i ngā pūranga momotuhi, ngā taputapu rongoā, ngā taputapu kawe, me ngā punaha tiki raraunga. Ka tautoko te whakatika painga me tētahi porohita ā-waho, ā, he pai te mahi i roto i ngā porowhita mana itēra, e whakamahi ana i ngā pūhiko. Kei te wātea te INA333 i roto i ngā mōkī PSSOP 8-pin me ngā pūkoro WSON.

ōrite mo te INA333 IC

• INA317

• AD8237

• AD623

• AD8226

• INA188

Ngā āhuatanga matua me ngā whakaritenga INA333

Tūmomo
 INA333 Whakaritenga
Momo Pūmanawa
 Whakaritenga Tika Whakaritenga Pūmanawa
Te Ōrau Pukapuka Raima
 1.8 V ki 5.5 V
Te Rōrahi Pukapuka Raima
 7 V
Te Rahi Painga
 1 ki te 1000
Tauira Painga
 G = 1 + (100 kΩ / RG)
Rōrahi Ngākaunui Ihua
 25 μV (Max), G ≥ 100
Huringa Rōrahi Ngākaunui
 0.1 μV/°C, G ≥ 100
Rōrahi Noise Hātepe
 50 nV/√Hz, G ≥ 100
Te Rāhui Rōpū He Mahi (CMRR)
 100 dB (Min), G ≥ 10
Rōrahi Hau Ngākaunui
 200 pA (Max)
Rōrahi Korero
 50 μA (Uaraō)
Rōrahi Ihu Tōpū
 (V−) + 0.1 V ki (V+) − 0.1 V
Rōrahi Arotahi Tōpū
 (V−) + 0.05 V ki (V+) − 0.05 V
RFI Whakararu
 Kōmiti RFI Taumahi
Rōrahi Te Mahinga Hātepe
 −40°C ki +125°C
Rōrahi Te Mahinga Pūkoro
 −65°C ki +150°C
Rōrahi Te Huri
 +150°C (Max)
Tauwhāiti Tangata Tīnana (HBM) rohe ESD
 ±4000 V
Tauwhāiti Hoko Whakairoiro (CDM) rohe ESD
 ±1000 V
Tauwhāiti Mahi (MM) rohe ESD
 ±200 V
Ngā Whiringa Pūkoro
 8-Pin VSSOP, 8-Pin WSON
Te Paerewa Takahanga ki te Taiao (VSSOP)
 169.5 °C/W
Te Paerewa Takahanga ki te Taiao (WSON)
 60 °C/W
Te Mahi Pūhiko Iti
 Ae
Te Whakatohe Māori
 Te Tika te Whakatau, Te Taka He, Te Haruru Iti

Te Whakahaere me ngā Mahi o te PIN INA333

INA333 Pin Configuration and Functions
Nama PIN
 Ingoa PIN
 I/O
 Mahi
1
 RG
 —
 PIN whakatakoto gain. Whakapānga he rōpū gain i waenganui i ngā PIN 1 me te 8 ki te whakatakoto te kupuāhu o te pūhiko ki runga i te 1.
2
 VIN−
 Tūranga
 Pūnaha whakawehi (pātea) me te tohu rerekētanga.
3
 VIN+
 Tūranga
 Pūnaha kāohe (pōti) me te tohu rerekētanga.
4
 V−
 Pūhiko
 Whakapānga pūhiko pātea.
5
 REF
 Tūranga
 Whakapānga pūnaha kōwhiringa e whakatakoto ana i te taumata mau pūhiko. Ka hono koe ki te whenua i ngā pūnaha whakaako kotahi.
6
 VOUT
 Putanga
 Tohu putanga whakapakari.
7
 V+
 Pūhiko
 Whakapānga pūhiko pōti.
8
 RG
 —
 PIN whakatakoto gain. Whakapānga he rōpū gain i waenganui i ngā PIN 1 me te 8 ki te whakatakoto te hua tākaro e hiahiatia ana.

Me Pehea e Mahi ai te INA333 IC

How the INA333 IC Works

Ka whakamahia te INA333 he rārangi pūhiko e toru-te wāhi rorohiko whakakotahi ki te whakakirimana i ngā tohu rerekētanga iti me te whakapakari i ngā haruru kāore e hiahiatia ana. Ka pīturutu i te whakaahua, ka pā ai te tohu ki ngā VIN+ me VIN−, e āwhina ana ngā pūnaha RFI-whakakāhoretanga ki te whakaiti i te pāhūhuru rīohiko i mua i te whakakotahi.

Ko te papa tuatahi e mau ana i ngā amplifiers A1 me A2, e whakakotahi ana i te pātea rerekētanga i waenganui i ngā tohu kei te haere. Ka whakatauhia te gain e te whakaurunga RG e hono ana i waenganui i ngā PIN 1 me te 8. Mā te mano RG iti ka puta he rahi te gain e ai ki te pānga G = 1 + (100 kΩ / RG).

Ka tukuna atu ngā tohu whakapakari ki te amplifier A3, e mahi ana hei amplifer rerekētanga. Ka tango tēnei papa i ngā tohu e rua kua whakakotahi, ka whakarere i te haruru rōpū, ā, ka whakaputa i te pātea marama i te VOUT. Ka āhei te REF pin ki te whakapai i te taumata pātea i te wā e hiahiatia ana, ā, ka tuku te V+ me te V− i te pūhiko mō te taputapu.

Me Pehea te Whakamahi i te INA333 IC

How to Utilized INA333 IC

Ka taea te INA333 te whakamahi hei amplifier tika mō ngā tohu iti mai i ngā rōpū. I roto i tēnei irā, ka hono te PIN 7 ki te +5 Vupply, ā, ka hono te PIN 4 ki te whenua. Ka tāia he 0.1 μF capacita tāpiri e noho ana i te taha i te pūhiko ki te whakaiti i te haruru pūhiko, ā, ka āwhina ki te pupuri i te irā i runga i te tau.

Ka hono te tohu ki te VIN+ me VIN−, ā, ko te gain ka whakatakotohia e te whakaurunga R1 i waenganui i ngā PIN 1 me te 8. Mā te rōpū gain 500 Ω, ka tata te gain ki te 201 e whakamahi ana i te pānga G = 1 + (100 kΩ / RG). Ka hono te REF pin ki te whenua, nō reira ko te putanga e pā ana ki te 0 V. Ka tangohia te tohu whakapakari mai i te PIN 6, ā, ka taea te tuku ki te ADC, te rorohiko, rānei ki te pūnaha inenga.

Ngā Whakamahi o te Ao Rēhia o te INA333

Ngā Tākai Taumaha Hiko

Ka whakamahia te INA333 i te rahi atu i ngā tākai taimaha hiko ki te whakapakari i ngā tohu pātea iti mai i ngā rōpū taumaha. Ko tōna pātea iti me te tika te awhina ki te whakaputa i ngā pātea taimaha haumaru me te tika, ahakoa ka inehia ngā whakarereketanga taumaha iti.

Ngā Pūnaha Matatika Haumaru

Ka inehia e ngā taputapu hauora ngā tohu hangarau i ngā wiri e hiahia ana i te whakakotahi tika. Ka āwhina te INA333 ki te whakapai i te kounga o te tohu mā te whakapakari i ngā tohu iti-ake i te kāore e hiahiatia te haruru hiko.

Ngā Pūnaha Whakamuri, Te Rorohiko, me Ngā Pūnaha Inenga Taiao

He tere te INA333 i roto i te tirohanga ahumahi, ngā pūnaha rorohiko, me ngā taputapu whakaata taiao. Ka whakapakari i ngā putanga iti mai i ngā konganuku, kuye, pāma, me ērā atu taputapu inenga i te wa e whakaritehia ana ngā tohu e ADC, te kaiwhakahaere, rānei ki te pūnaha tuhinga.

Ngā Pūnaha whakamātautau Rorohiko me te Pūhiko

Nā tōna tataitanga pūhiko i raro, he pai te INA333 mō ngā mita i te ringaringa, ngā taputapu whakamātautau pātea, me ngā pūnaha rōpū pūhiko. Ka āwhina ia ki te whakarahi i te ora pūhiko i te wa e tuku ana i te whakakotahi tika mō ngā tohu iti.

INA333 vs Ētahi Atu Rūma Rorohiko

Whakamāramatanga
 INA333
 INA317
 AD623
 AD8226
 INA826
 AD620
Kaihanga
 Ngā Pūhanga Texas
 Ngā Pūhanga Texas
 Ngā Pouaka Anahera
 Ngā Pouaka Anahera
 Ngā Pūhanga Texas
 Ngā Pouaka Anahera
Te Taha Pānga Pūhiko
 1.8 V ki te 5.5 V
 1.8 V ki 5.5 V
 3 V ki 12 V
 2.2 V ki 36 V
 2.7 V ki 36 V
 ±2.3 V ki ±18 V
Pūhiko Kōwhiri
 50 μA
 50 μA
 550 μA
 350 μA
 200 μA
 1.3 mA
Tuhinga Kōaro Pūtau (Max)
 25 μV
 25 μV
 200 μV
 35 μV
 125 μV
 50 μV
Whakatūpato Raina
 0.1 μV/°C
 0.1 μV/°C
 2 μV/°C
 0.3 μV/°C
 0.4 μV/°C
 0.6 μV/°C
Pūhiko Pātea Kōwhiri
 200 pA
 200 pA
 25 nA
 300 pA
 5 nA
 1 nA
CMRR (Min)
 100 dB
 100 dB
 90 dB
 100 dB
 100 dB
 100 dB
Tūponotanga Noise
 50 nV/√Hz
 50 nV/√Hz
 35 nV/√Hz
 22 nV/√Hz
 28 nV/√Hz
 9 nV/√Hz
Te Whānuitanga Rōpū
 1 ki 1000
 1 ki 1000
 1 ki 1000
 1 ki 1000
 1 ki 10,000
 1 ki 10,000
Te Kawa Whakarite Rōpū
 Rūri Tahi
 Rūri Tahi
 Rūri Tahi
 Rūri Tahi
 Rūri Tahi
 Rūri Tahi
Rail-ki-Rail Putanga
 Āe
 Āe
 Tata Rail-ki-Rail
 Āe
 Kāore
 Kāore
Pūtahi Tōpū
 -40°C ki +125°C
 -40°C ki +125°C
 -40°C ki +85°C
 -40°C ki +125°C
 -40°C ki +125°C
 -40°C ki +85°C
Kaipuka Whakaritenga
 VSSOP, WSON
 VSSOP, WSON
 SOIC, MSOP
 MSOP
 SOIC, VSSOP
 DIP, SOIC
Tūtohu Matua
 Pūhiko Miiti-iti
 Whakaritenga Pātea
 Utu Iti
 Noise Iti
 Te Whānui Pūwāhi Rōpū
 Te Whakapono Rerekē

Nga Whakamahana Hanga o INA333

Mechanical Dimensions of INA333

Kaihanga

Ko Texas Instruments he kaiwhakanao IC analog rangatira. He tino mōhio ratou ki te hanga i nā pouaka tīki ngā pūhiko pērā i te INA333. Ka whakamahia e te kamupene ngā tukanga semiconductor nāna i whakawhānui i te mahi, i te tirohanga ki te whakamātautau. Ka awhina ēnei ki te INA333 ki te whai pānga iti pātea, te rāpaki iti, te noise iti, me te whakatairanga wātea. Ko Texas Instruments ka whakamahi hoki i te tirohanga kounga me te whakamātautau tūtohu ki te tautoko i te mahi puta noa i te whānuitanga pāmahana. Ka awhina tāna kōtahitanga whakaputa o te ao ki te whakarite i te tautoko me te kounga o te hua.






He Pātai Ka Mārama [FAQ]

1. He aha i whakamahia ai e te INA333 he pīnare īmua (REF) i te mea kāore e hono te putanga tika ki te whenua?

Ka āhei te pīnare REF ki a koe ki te nuku i te pāmahana putanga ki te taumata e hiahiatia ana. He whai hua tēnei i ngā pūnaha pūhiko kotahi e kore ai e taea e te putanga te huri ki raro i te whenua.

2. Ka pēhea te pānga o te rōpū ki te whānuitanga o te INA333?

I te piki o te rōpū, ka ngaro te whānuitanga. Ka tauira te pānga tīki i te pikinga rongoā engari ka whakaheke i te whānuitanga reiti ka taea e te whakawhānui te whai i te tika.

3. He aha ka tupu mēnā kāore te rōpū rārangi e hono ki te INA333?

Mēnā kāore e kopere te rōpū, ka whakahaere te INA333 i tōna rōpū iti o 1, ko te tikanga ko te whakaūti rīpo ēnei ki raro me te hiahiatia he iti.

4. Ka taea e te INA333 te ine i ngā tohu i te taumata mikrovolt?

Āe. Ko tōna pāmahana iti pātea, te whakarite iti, me te CMRR teitei ka taea te whakanui i ngā tohu rerekē iti me te tika.

5. He aha i te mea nui te whakakore rōpū ki te ine tika?

Ko te whakakore rōpū ka awhina ki te tango i te noise e puta ana i ngā rārangi kōwhiri e rua. Ka whakapai tēnei i te tikanga ine i ngā taiao hiko rite ki te noise.

6. He aha ngā take ka kāore te putanga e rata i te INA333?

Ko te rōpū nui, te tohu rorohiko nui, te pāmahana pūhiko kāore e tāpiri, rātou ko te REF pāmahana he pānga ka taea te putanga ki te pāmahana.

7. He pai te INA333 mo nga pūnaha ine mō te wa roa?

Āe. Ko tōna pāmahana iti rāpaki me te kounga pākiki ka awhina i te pupuri i te tika ine i ngā wā roa o te whakahaere.

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