A read-in IC for infrared scene projectors with voltage drop compensation for improved uniformity of emitter current

Cho, Min Ji; Shin, Uisub; Lee, Hee Chul

doi:10.1117/12.2256111

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2018

Publication Types

Select...

Article1

Relationship

Self Cite1

Independent0

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Building upon our previous work that introduces an RIIC design with voltagedrop compensation [7], this letter presents a mismatch-tolerant RIIC that effectively resolves the issues of emitter-current non-uniformity and non-monotonicity. The proposed RIIC employs a current-output D/A converter (DAC) and current sample-and-hold (S/H) circuits in order to program scene-data currents into unit pixels.…”

Section: Introductionmentioning

confidence: 99%

Mismatch-tolerant read-in IC with voltage-drop compensation for infrared scene projectors

Shin

Cho

Lee

2018

IEICE Electron. Express

Self Cite

View full text Add to dashboard Cite

This letter presents a mismatch-tolerant read-in integrated circuit (RIIC) with voltage-drop compensation applicable to high-speed and hightemperature infrared scene projectors. A current-programmed unit pixel is designed to compensate for ground-line voltage drops, thus improving the array-wide current uniformity. The proposed mismatch-tolerant design circumvents non-monotonic fluctuations in the output current, irrespective of the matching properties of sampling capacitors and switches. A prototype RIIC with a 32 × 32 unit-pixel array is fabricated in a 0.18-µm CMOS process. The RIIC compensates for voltage drops up to 500 mV with error currents below 1 µA and achieves 10-bit accuracy with output-current nonmonotonicity eliminated.

show abstract

Section: Introductionmentioning

confidence: 99%