socware
Junior Member level 3
proceed design
Hello,
I am a graduate student, and I have been given to design a 1st Order 1-bit sigma-delta ADC as my project.
I have been provided with an Operational Transc. Ampli(OTA) :
Static Power Consumption=4.6458 mW,
DC gain=60 dB,
ω -3dB=476.6KHz,
Phase Margin=56.427 dB(125 degrees)
Output swing=687.304 mV
Input Offset Voltage = 4.693 uV
and a Comparator: offset = 30mV
The task is to design a SC integrator, a 1bit flash ADC and a
1-bit DAC. The decimation filter will be implemented using MATLAB/Simulink
Specification:
The A/D converter must provide at least 50dB SNR (signal to noise ratio) over a 100kHz signal bandwidth.
• Technology: 0.18 um CMOS UMC
• Supply voltage: 1.8 V
• Minimum sampling frequency: 64 MHz
• Differential Input range: 1Vppd
• Power dissipation: less than 30mW
please can someone guide me how to proceed and also if someone have some pervious examples.
Thanks
Hello,
I am a graduate student, and I have been given to design a 1st Order 1-bit sigma-delta ADC as my project.
I have been provided with an Operational Transc. Ampli(OTA) :
Static Power Consumption=4.6458 mW,
DC gain=60 dB,
ω -3dB=476.6KHz,
Phase Margin=56.427 dB(125 degrees)
Output swing=687.304 mV
Input Offset Voltage = 4.693 uV
and a Comparator: offset = 30mV
The task is to design a SC integrator, a 1bit flash ADC and a
1-bit DAC. The decimation filter will be implemented using MATLAB/Simulink
Specification:
The A/D converter must provide at least 50dB SNR (signal to noise ratio) over a 100kHz signal bandwidth.
• Technology: 0.18 um CMOS UMC
• Supply voltage: 1.8 V
• Minimum sampling frequency: 64 MHz
• Differential Input range: 1Vppd
• Power dissipation: less than 30mW
please can someone guide me how to proceed and also if someone have some pervious examples.
Thanks