2.5 Gbit/s Optical Receiver Front-End Circuit with High Sensitivity and Wide Dynamic Range

2017 ◽  
Vol 38 (4) ◽  
Author(s):  
Tiezhu Zhu ◽  
Taishan Mo ◽  
Tianchun Ye
Keyword(s):  
Dynamic Range ◽  
Automatic Gain Control ◽  
Optical Network ◽  
Gain Control ◽  
High Sensitivity ◽  
Cmos Technology ◽  
Optical Receiver ◽  
Passive Optical Network ◽  
Wide Dynamic Range ◽  
Front End

AbstractAn optical receiver front-end circuit is designed for passive optical network and fabricated in a 0.18 um CMOS technology. The whole circuit consists of a transimpedance amplifier (TIA), a single-ended to differential amplifier and an output driver. The TIA employs a cascode stage as the input stage and auxiliary amplifier to reduce the miller effect. Current injecting technique is employed to enlarge the input transistor’s transconductance, optimize the noise performance and overcome the lack of voltage headroom. To achieve a wide dynamic range, an automatic gain control circuit with self-adaptive function is proposed. Experiment results show an optical sensitivity of –28 dBm for a bit error rate of 10

High-sensitivity and wide-dynamic-range 10 Gbit∕s APD∕preamplifier optical receiver module

2002 ◽  
Vol 38 (13) ◽  
pp. 650 ◽  
Author(s):  
H. Matsuda ◽  
A. Miura ◽  
H. Irie ◽  
S. Tanaka ◽  
K. Ito ◽  
...  
Keyword(s):  
Dynamic Range ◽  
High Sensitivity ◽  
Optical Receiver ◽  
Wide Dynamic Range ◽  
Receiver Module

scholarly journals 14.85 µW Analog Front-End for Photoplethysmography Acquisition with 142-dBΩ Gain and 64.2-pArms Noise

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 512
Author(s):  
Binghui Lin ◽  
Mohamed Atef ◽  
Guoxing Wang
Keyword(s):  
Dynamic Range ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Low Noise ◽  
Total Power ◽  
Cmos Process ◽  
Control Block ◽  
Silicon Area ◽  
Front End ◽  
Analog Front End

A low-power, high-gain, and low-noise analog front-end (AFE) for wearable photoplethysmography (PPG) acquisition systems is designed and fabricated in a 0.35 μm CMOS process. A high transimpedance gain of 142 dBΩ and a low input-referred noise of only 64.2 pArms was achieved. A Sub-Hz filter was integrated using a pseudo resistor, resulting in a small silicon area. To mitigate the saturation problem caused by background light (BGL), a BGL cancellation loop and a new simple automatic gain control block are used to enhance the dynamic range and improve the linearity of the AFE. The measurement results show that a DC photocurrent component up-to-10 μA can be rejected and the PPG output swing can reach 1.42 Vpp at THD < 1%. The chip consumes a total power of 14.85 μW using a single 3.3-V power supply. In this work, the small area and efficiently integrated blocks were used to implement the PPG AFE and the silicon area is minimized to 0.8 mm × 0.8 mm.

10-gigabit-per-second high-sensitivity and wide-dynamic-range APD-HEMT optical receiver

1996 ◽  
Vol 8 (9) ◽  
pp. 1232-1234 ◽  
Author(s):  
T.Y. Yun ◽  
M.S. Park ◽  
J.H. Han ◽  
I. Watanabe ◽  
K. Makita
Keyword(s):  
Dynamic Range ◽  
High Sensitivity ◽  
Optical Receiver ◽  
Wide Dynamic Range

An Optimized Design Strategy for the Hardware Implementation of the Hearing Aid Algorithms

2015 ◽  
Vol 719-720 ◽  
pp. 548-553
Author(s):  
Feng Guo ◽  
Shan Shan Yong ◽  
Zhao Yang Guo ◽  
Xin An Wang ◽  
Guo Xin Zhang
Keyword(s):  
Hardware Implementation ◽  
Dynamic Range ◽  
Automatic Gain Control ◽  
Hearing Aid ◽  
Gain Control ◽  
Design Strategy ◽  
Optimized Design ◽  
Wide Dynamic Range ◽  
Dynamic Range Compression ◽  
The Common

In this paper, a new design strategy for the hardware implementation of hearing aid algorithms is proposed. Two familiar hearing aid algorithms—Wide Dynamic Range Compression (WDRC) and Automatic Gain Control (AGC)—are implemented in one circuit as an example. By putting the common arithmetic procedures into common module, the operation units can be used repeatedly. In this way, the area and power consumption are visibly reduced.

scholarly journals A 23-GHZ BANDWIDTH AUTOMATIC GAIN CONTROL AMPLIFIER WITH WIDE DYNAMIC RANGE FOR HIGH SPEED COMMUNICATION

2013 ◽  
Vol 142 ◽  
pp. 261-273
Author(s):  
Bo Zhang ◽  
Yong-Zhong Xiong ◽  
Lei Wang ◽  
Sanming Hu ◽  
Joshua Le-Wei Li
Keyword(s):  
High Speed ◽  
Dynamic Range ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Wide Dynamic Range

High sensitivity and wide-dynamic-range optical receiver for 40 Gbit∕s optical communication networks

2003 ◽  
Vol 39 (1) ◽  
pp. 91 ◽  
Author(s):  
R. Vetury ◽  
I. Gontijo ◽  
Yet-zen Liu ◽  
K. Krishnamurthy ◽  
R. Pullela ◽  
...  
Keyword(s):  
Communication Networks ◽  
Optical Communication ◽  
Dynamic Range ◽  
High Sensitivity ◽  
Optical Receiver ◽  
Wide Dynamic Range
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