A Low Noise Readout Circuit for Astronomical Telescope

CHEN Cheng-ying; HU Xiao-yu; HEI Yong

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A Low Noise Readout Circuit for Astronomical Telescope

更新时间：2026-09-04

- A Low Noise Readout Circuit for Astronomical Telescope
- Vol. 32, Issue 2, Pages: 33-36(2015)
- 作者机构：
  
  中国科学院机构微电子研究所,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
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陈铖颖, 胡晓宇, 黑勇. 一种用于天文望远镜的低噪声CCD读出电路[J]. 微电子学与计算机, 2015, 32(2): 33-36.

CHEN Cheng-ying, HU Xiao-yu, HEI Yong. A Low Noise Readout Circuit for Astronomical Telescope[J]. 2015, 32(2): 33-36.
陈铖颖, 胡晓宇, 黑勇. 一种用于天文望远镜的低噪声CCD读出电路[J]. 微电子学与计算机, 2015, 32(2): 33-36. DOI：

CHEN Cheng-ying, HU Xiao-yu, HEI Yong. A Low Noise Readout Circuit for Astronomical Telescope[J]. 2015, 32(2): 33-36. DOI：

摘要

设计了一种用于天文望远镜的低噪声电荷耦合器件(Charge Coupled Devices

CCD)读出电路.该读出电路主要包括电容增益电路、单端转差分电路、双斜率积分电路以及缓冲器电路.CCD读出电路采用SMIC 0.18 μm 1P6M CMOS工艺实现.后仿真结果表明

在电源电压3.3 V

输入信号67 kHz

输出信号80 mV峰值时

输出信号动态范围86 dB

等效输入噪声2.523 nV/√

整体功耗1.25 mW.

Abstract

In this paper a low noise Readout circuit for astronomical telescope is presented

which consists of capacitor-gain circuit

single-to-differential circuit

dual-slope integrator and buffer. The readout circuit is implemented in SMIC 0.18 m 1P6M CMOS process. The post-simulation results show that in 3.3 V power supply

67 kHz input frequency and 80 mV output

the Dynamic Range (DR) is 86 dB

equal input noise is 2.523 nV/√

total power is 1.25 mW.

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Related Institution

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