1 Ocak 2019 Dergi makalesi Açık Erişim

Abbas, Shahbaz; Ceylan, Omer; Gurbuz, Yasar

Citation Style Language JSON

{
  "DOI": "10.1109/TCSI.2019.2914191", 
  "abstract": "This paper presents a digital readout integrated circuit (DROIC) for small pitch medium-wave infrared (MWIR) starring focal plane arrays (FPAs). To overcome the limited in-pixel resolution of such DROICs, the concept of error shaping is introduced in pulse frequency modulation (PFM)-based pixels. Multiple integration operations are performed in a single frame and the residue charge from each integration phase is retained and injected into the next charge packet. This over-integration routine provides a high pass noise transfer function (NTF) equivalent to what is obtained in a first order sigma delta modulator. The concise structure of a PFM analog-to-digital converter (ADC) lends itself well to such an operation inside the pixel, while consuming low power. Along with a theoretical analysis of the technique, a prototype based on a 16 x 16 array and sinc decimation filters is developed to demonstrate the performance of the proposed DROIC. With an in-pixel resolution of 5 bits and over-integration ratio (OIR) of 128, 395 noise electrons are demonstrated at full-well fill from the test array fabricated in a 90 nm bulk-CMOS process.", 
  "author": [
    {
      "family": "Abbas", 
      "given": " Shahbaz"
    }, 
    {
      "family": "Ceylan", 
      "given": " Omer"
    }, 
    {
      "family": "Gurbuz", 
      "given": " Yasar"
    }
  ], 
  "container_title": "IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS", 
  "id": "71247", 
  "issue": "10", 
  "issued": {
    "date-parts": [
      [
        2019, 
        1, 
        1
      ]
    ]
  }, 
  "page": "3713-3722", 
  "title": "A DROIC Based on PFM ADCs Employing Over-Integration for Error Shaping", 
  "type": "article-journal", 
  "volume": "66"
}