Download e-book for kindle: Analog Circuit Design Techniques at 0.5 V by Shouri Chatterjee, K.P. Pun, Nebojša Stanic, Yannis

By Shouri Chatterjee, K.P. Pun, Nebojša Stanic, Yannis Tsividis, Peter Kinget

ISBN-10: 0387699538

ISBN-13: 9780387699530

ISBN-10: 0387699546

ISBN-13: 9780387699547

Analog layout at ultra-low offer voltages is a vital problem for the semiconductor learn neighborhood and industry.

Analog Circuit layout suggestions at 0.5V covers demanding situations for the layout of MOS analog and RF circuits at a 0.5V strength provide voltage. All layout ideas awarded are actual low voltage strategies - all nodes within the circuits are in the energy provide rails. The circuit implementations of physique and gate enter totally differential amplifiers also are mentioned. those construction blocks permit us to construct continuous-time filters, track-and-hold circuits, and continuous-time sigma delta modulators.

Current books on low voltage analog layout ordinarily conceal suggestions for offer voltages all the way down to nearly 1V. This e-book provides novel rules and effects for operation from a lot reduce offer voltages and the innovations offered are simple circuit recommendations which are broadly appropriate past the scope of the provided examples.

Analog Circuit layout recommendations at 0.5V is written for analog circuit designers and researchers in addition to graduate scholars learning semiconductors and built-in circuit design.

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18 was used. 3. 5 V, and is shown in comparison to simulated results in Fig. 19. Simulations of the open-loop phase response, adjusted for board parasitic capacitances, are shown compared to measurements, in Fig. 20. Measurements of the gain and phase response of the body-input OTA, in closed loop, are shown in Fig. 21. The measured output noise in the closed loop is shown in Fig. 22. The initial slope is a result of 1/f noise, the peaking in the noise response close to the gain-bandwidth frequency is because of the low phase margin.

23 as the power supply voltage is varied. 5 V R/2 C Fig. 17: General measurement setup for the body and gate-input OTAs. The switches are closed for open-loop measurements and are left open for closed-loop measurements. The dashed resistors are required for testing the gate-input OTA only. The input capacitance of the probe, CL , is differential 10 pF. 2 Gate-input OTA measurements The gate-input OTA, along with its associated bias circuits, was used in a filter, to be discussed in Chapter 4. A stand-alone gate-input OTA was included on the same chip as a test structure.

12(b). The amplifier has a gain-bandwidth product of 20 kHz with a current consumption of 2 µA for a load of 1 pF. 5 (b) Fig. 12: (a) Error-amplifier biasing loop to fix the switching threshold voltage to VDD /2. (b) DC input-output characteristics of a biased error amplifier. 2 Generating a fixed level shift The bias current IL in Fig. 8(b) creates a level shift across resistors R1A , R1B . This level shift is essential in maintaining the pMOS devices in moderate inversion, and in maintaining the correct common-mode level for the output of the first stage 32 2 Fully Differential Operational Transconductance Amplifiers (OTAs) of the OTA.

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Analog Circuit Design Techniques at 0.5 V by Shouri Chatterjee, K.P. Pun, Nebojša Stanic, Yannis Tsividis, Peter Kinget

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