This paper presents a low power design for a 384 x 288 infrared （IR） readout integrated circuit （ROIC）. For the character of IR detector （ ro ≈ 100kΩ, Iint ≈ 100nA）, a novel pixel structure called quad-share ...This paper presents a low power design for a 384 x 288 infrared （IR） readout integrated circuit （ROIC）. For the character of IR detector （ ro ≈ 100kΩ, Iint ≈ 100nA）, a novel pixel structure called quad-share buffered direct injection （QSBDI） is proposed and realized. In QSBDI,four neighbor pixels share one buffered amplifier,which creates high injection efficiency, a stable bias, good FPN performance, and low power usage. This ROIC also supports two integration modes （integration then readout and integration while readout）, two selectable gains, and four window readout modes. A test 128 × 128 ROIC is designed,fabricated,and tested. The test results show that the ROIC has good linearity. The peak to peak variance of the sub array is about 10mV. The power of pixel stage is only lmW,and the total power dissipation is 37mW at a working frequency of 4MHz.展开更多
文摘SoC是超越摩尔定律的未来瞩望。根据ITRS 2010介绍医学市场如何驱动SoC;解释新SoC设计者的设计V图。分析ISSCC 2008～2011中25例生物医学SoC,得到其发展趋势:以NMR-SoC为典型的整机SoC化、超低功耗的无限追求、植入式与贴片式的竞争、迎合BAN(body area networks)。摘取关键技术、分析技术亮点,得出其主要设计创新点包括ADC模块复用、阻抗法消除伪迹、功率调制以及光基因接口和电容阵列实现长时供电等。
文摘This paper presents a low power design for a 384 x 288 infrared （IR） readout integrated circuit （ROIC）. For the character of IR detector （ ro ≈ 100kΩ, Iint ≈ 100nA）, a novel pixel structure called quad-share buffered direct injection （QSBDI） is proposed and realized. In QSBDI,four neighbor pixels share one buffered amplifier,which creates high injection efficiency, a stable bias, good FPN performance, and low power usage. This ROIC also supports two integration modes （integration then readout and integration while readout）, two selectable gains, and four window readout modes. A test 128 × 128 ROIC is designed,fabricated,and tested. The test results show that the ROIC has good linearity. The peak to peak variance of the sub array is about 10mV. The power of pixel stage is only lmW,and the total power dissipation is 37mW at a working frequency of 4MHz.
