High-frequency digitally programmable gain amplifier

2003 ◽  
Vol 39 (15) ◽  
pp. 1095 ◽  
Author(s):  
B. Calvo ◽  
S. Celma ◽  
M.T. Sanz
Keyword(s):  
High Frequency ◽  
Digitally Programmable ◽  
Programmable Gain Amplifier ◽  
Programmable Gain

scholarly journals Carbon Nanotubes-Based Digitally Programmable Current Follower

VLSI Design ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
S. K. Tripathi ◽  
Mohd. Samar Ansari ◽  
Amit M. Joshi
Keyword(s):  
High Frequency ◽  
Current Mode ◽  
Instrumentation Amplifier ◽  
High Frequency Signal ◽  
Physical Constraints ◽  
Digitally Programmable ◽  
Digitally Controlled ◽  
Current Follower ◽  
Minimum Number ◽  
Programmable Gain

The physical constraints of ever-shrinking CMOS transistors are rapidly approaching atomistic and quantum mechanical limits. Therefore, research is now directed towards the development of nanoscale devices that could work efficiently in the sub-10 nm regime. This coupled with the fact that recent design trend for analog signal processing applications is moving towards current-mode circuits which offer lower voltage swings, higher bandwidth, and better signal linearity is the motivation for this work. A digitally controlled DVCC has been realized using CNFETs. This work exploited the CNFET’s parameters like chirality, pitch, and numbers of CNTs to perform the digital control operation. The circuit has minimum number of transistors and can control the output current digitally. A similar CMOS circuit with 32 nm CMOS parameters was also simulated and compared. The result shows that CMOS-based circuit requires 418.6 μW while CNFET-based circuit consumes 352.1 μW only. Further, the proposed circuit is used to realize a CNFET-based instrumentation amplifier with digitally programmable gain. The amplifier has a CMRR of 100 dB and ICMR equal to 0.806 V. The 3 dB bandwidth of the amplifier is 11.78 GHz which is suitable for the applications like navigation, radar instrumentation, and high-frequency signal amplification and conditioning.

A DC to 10.1 GHz, 31 dB gain range control, digital programmable gain amplifier

2016 ◽  
Author(s):  
Xuan-Quang Du ◽  
Anselm Knobloch ◽  
Markus Grozing ◽  
Matthias Buck ◽  
Manfred Berroth
Keyword(s):  
Programmable Gain Amplifier ◽  
Programmable Gain
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