Differential Difference Amplifier based Parametric Measurement Unit with Digital Calibration

• Published in: Journal of semiconductor technology and science Vol. 18; no. 4; pp. 438 - 444
• Main Authors: Ma, Hyunggun, Nam-Goong, Gyeong Ho, Kim, Seulkirom, Lim, Shin-Il, Bien, Franklin
• Format: Journal Article
• Language: English
• Published: 대한전자공학회 01.08.2018
• Subjects: 전기공학; Automatic Test Equipment (ATE); Parametric Measurement Unit (PMU); Differential Difference Amplifier (DDA)
• ISSN: 1598-1657; 2233-4866
• DOI: 10.5573/JSTS.2018.18.4.438

The proposed PMU with differential difference amplifier (DDA) promises stable operation, accuracy, and reduced power consumption by reducing the number of operational amplifier from five to one. In addition, digital calibration is applied to improve accuracy of forcing ability. The PMU works under various loads from 12.5 Ω to 50 kΩ. In the forcing voltage mode, the PMU forces a voltage of 0 V to 3.5 V. In the forcing current mode, the PMU forces a current of 0.7 μA to 19 mA. The PMU is fabricated using the Magnachip 0.18-μm BCD technology. The total area of the PMU including the resistor bank is 2 μm2, and the active area is 0.2 μm2. KCI Citation Count: 0