FR3138963B1 - Double CTIA pour photodiode non pincée - Google Patents

Double CTIA pour photodiode non pincée

Info

Publication number
FR3138963B1
FR3138963B1 FR2208374A FR2208374A FR3138963B1 FR 3138963 B1 FR3138963 B1 FR 3138963B1 FR 2208374 A FR2208374 A FR 2208374A FR 2208374 A FR2208374 A FR 2208374A FR 3138963 B1 FR3138963 B1 FR 3138963B1
Authority
FR
France
Prior art keywords
photodetector
polarization
readout circuit
output
during
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2208374A
Other languages
English (en)
Other versions
FR3138963A1 (fr
Inventor
François Ayel
Gaëlle Palmigiani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR2208374A priority Critical patent/FR3138963B1/fr
Publication of FR3138963A1 publication Critical patent/FR3138963A1/fr
Application granted granted Critical
Publication of FR3138963B1 publication Critical patent/FR3138963B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4913—Circuits for detection, sampling, integration or read-out
    • G01S7/4914—Circuits for detection, sampling, integration or read-out of detector arrays, e.g. charge-transfer gates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G01S17/894—Three-dimensional [3D] imaging with simultaneous measurement of time-of-flight at a two-dimensional [2D] array of receiver pixels, e.g. time-of-flight cameras or flash lidar
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4816—Constructional features, e.g. arrangements of optical elements of receivers alone

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Dispositif d'acquisition d'images de profondeur d'une scène, le dispositif d’acquisition étant doté d’une pluralité pixels de profondeur comprenant chacun un circuit de lecture doté d’une première capacité d’intégration (CINT1) pour acquérir des premiers échantillons de charges issues du photo-détecteur (PD) lors de premières phases d’échantillonnage (C0) effectuées lors d’une période d’intégration comportant des séquences répétées de plusieurs phases successives d’échantillonnage (C0, C1, C2, C3) de charges, la première capacité d’intégration (CINT1) étant située dans une branche de rétroaction entre une entrée et une sortie d’un premier étage amplificateur (A1) d’une structure d’amplificateur capacitif à transimpédance, ladite entrée étant reliée à un nœud de détection (ND) couplé au photo-détecteur (PD) et ladite sortie étant reliée à un nœud de lecture (NL1) couplé à un étage (51) de sortie dudit circuit de lecture, le circuit de lecture comprenant en outre un bloc (10) de réinitialisation de polarisation servant à la polarisation du photo-détecteur (PD), avec un interrupteur (11) de repolarisation configuré pour, lors de phases de réinitialisation (RAZ) de polarisation dudit photo-détecteur (PD) effectuées entre lesdites première phases d’échantillonnage, coupler le bloc (10) de réinitialisation de polarisation au photo-détecteur (PD) de sorte à lui appliquer un potentiel de polarisation. Figure pour l’abrégé : 3.
FR2208374A 2022-08-18 2022-08-18 Double CTIA pour photodiode non pincée Active FR3138963B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2208374A FR3138963B1 (fr) 2022-08-18 2022-08-18 Double CTIA pour photodiode non pincée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2208374 2022-08-18
FR2208374A FR3138963B1 (fr) 2022-08-18 2022-08-18 Double CTIA pour photodiode non pincée

Publications (2)

Publication Number Publication Date
FR3138963A1 FR3138963A1 (fr) 2024-02-23
FR3138963B1 true FR3138963B1 (fr) 2026-04-10

Family

ID=84569722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2208374A Active FR3138963B1 (fr) 2022-08-18 2022-08-18 Double CTIA pour photodiode non pincée

Country Status (1)

Country Link
FR (1) FR3138963B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3160285A1 (fr) * 2024-03-15 2025-09-19 Commissariat A L' Energie Atomique Et Aux Energies Alternatives pixel de profondeur à capacité d’intégration commutable

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3016056B1 (fr) * 2013-12-31 2017-05-05 Commissariat Energie Atomique Systeme d'acquisition d'images par holographie numerique heterodyne
JP2019080305A (ja) * 2017-10-20 2019-05-23 ソニーセミコンダクタソリューションズ株式会社 固体撮像素子、固体撮像素子の駆動方法および電子機器
FR3094839B1 (fr) * 2019-04-02 2021-04-09 Commissariat A Lenergie Atomique Et Aux Energies Capteur pour l'acquisition d'un signal lumineux modulé à une fréquence acoustique
KR102907586B1 (ko) * 2020-07-15 2026-01-05 삼성전자주식회사 멀티-탭 구조를 갖는 거리 픽셀 및 이를 포함하는 비행 거리 센서
FR3115175B1 (fr) * 2020-10-08 2022-08-26 Commissariat Energie Atomique Dispositif d'acquisition d'une image de profondeur d'une scene

Also Published As

Publication number Publication date
FR3138963A1 (fr) 2024-02-23

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