High Performance Bootstrapped CMOS Dual Supply Level Shifter for 0.5V Input and 1V Output

2009 ◽  
Author(s):  
José Carlos Garcia-Montesdeoca ◽  
Juan A. Montiel-Nelson ◽  
Saeid Nooshabadi
Keyword(s):  
High Performance ◽  
Level Shifter ◽  
Supply Level

A High Performance Current-Mode Instrumentation Amplifier with Level Shifter for Single Power Biomedical Applications

2014 ◽  
Vol 530-531 ◽  
pp. 217-220
Author(s):  
Hwang Cherng Chow ◽  
Bing Shiun Tang
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Current Mode ◽  
Cmos Technology ◽  
Low Noise ◽  
Instrumentation Amplifier ◽  
Level Shifter ◽  
High Cmrr ◽  
Cmos Implementation ◽  
Single Power

In this paper, a high performance current-mode instrumentation amplifier has been proposed with low noise, low power and high CMRR features. The proposed design can adjust the gain with an external resistor for the processing of various biomedical signals. To reduce the noise of the amplifier, two design methods including PMOS input and lateral pnp BJT input have been implemented to improve the prior arts. To meet the single power supply need, a biomedical voltage level shifter is also proposed for low cost CMOS implementation. Based on the post-layout simulation results, the presented current-mode amplifier achieves high CMRR over 120 dB, power consumption of 61 uW at 1.8-V supply using standard 0.18-um CMOS technology.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

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