ICTSS20201202Lei Sha, Minh Tri Tran, Anna Kuwana, Haruo Kobayashi
Division of Electronics and Informatics
4th International Conference on Technology and Social Science
Dec.3, 2020
Gunma University
• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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Contents
• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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β Io
Iin1 Vout1
N=16
β Io
β Io
Bipolar Transistor Current Mirror Circuit with Cascode and Base Current Compensation Configuration
Vcc(5V)
R1
Vcc
Iin=1.213mA
Iout=1.206mA
Bipolar Transistor Current Mirror Circuit with Cascode, Level-Shift and Base Current Compensation Configuration
R1
Vcc(5V)
Vcc
-7
-4
-1
2
Bipolar Transistor Current Mirror Circuit with Cascode, Level-Shift and Base Current Compensation Configuration
Iin
Vcc VccVcc(5V)
R3
R2 R2 R2 R2 0 1 2 3 4 5 -6
-4
-2
Bipolar Transistor Current Mirror Circuit with Cascode, Level-Shift and Base Current Compensation Configuration
Vcc(5V) Vcc Vcc
R1
R3
R3
R1=3kΩ R2=50Ω R3=8kΩ 0 1 2 3 4 5
-6
-4
-2
Vout(1V) Vout(1V)
• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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I
I
Bipolar Differential Amplifier with Base Current Compensation and Simple Active Load
I
Vout Ip Im Im
Q3 Q4 Ip
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Bipolar Differential Amplifier with Base Current Compensation and the Cascode Active Load
I
Vip
Vout
Bipolar Differential Amplifier with Base Current Compensation and the Wilson Active Load
Iin+=0 I
Vout Ip Ip Im Im
ImIp Iin-=0 Vim
Vout 3.73uA 3.75uA
• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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Iin1 R3
Vdd5V
Bandgap Reference
Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
Iin2 =0
• Curvature Compensation Circuit in Bandgap Reference Circuit with Base Current Compensation
• Summary
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Summary
1. Cascode current mirror with PNP level-shift and base current compensation technique
• Deviation reduction between input and output currents • Stable output current under lower output voltage
2. Differential amplifier with Wilson active load and base current compensation technique
• High input impedance • High gain
3. Curvature compensation circuit with the base current compensation technique • Dependable and simple curvature compensation in bandgap reference circuit
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Acknowledgements
We would like to thank Mr. Hiroki Sonoda and Mr. Koichi Yamazaki of Renesas Electronics Corp. for their valuable comments about bipolar ICs in industry today
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