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- Ali Hajimiri, Thomas H Lee
- 1998

The authors of the above paper 1 have found an error in (19) on p. 185. The factor of 8 in the denominator should be 4; therefore (19) should read Lf1!g = 10 1 log i 2 n 1f 1 n=0 c 2 n 4q 2 max 1! 2 : Noise power around the frequency n!0 + 1! causes two equal sidebands at !0 6 1!: However, the noise power at n!0 0 1! has a similar effect as mentioned in the… (More)

—We describe a new method for determining component values and transistor dimensions for CMOS operational amplifiers (op-amps). We observe that a wide variety of design objectives and constraints have a special form, i.e., they are posyn-omial functions of the design variables. As a result, the amplifier design problem can be expressed as a special form of… (More)

Three-dimensional die stacking integration provides the ability to stack multiple layers of processed silicon with a large number of vertical interconnects. Through Silicon Vias (TSVs) provide a promising area- and power-efficient way to support communication between different stack layers. Unfortunately, low TSV yield significantly impacts design of… (More)

—A companion analysis of clock jitter and phase noise of single-ended and differential ring oscillators is presented. The impulse sensitivity functions are used to derive expressions for the jitter and phase noise of ring oscillators. The effect of the number of stages, power dissipation, frequency of oscillation, and short-channel effects on the jitter and… (More)

- Ali Hajimiri, Thomas H Lee
- 1999

— An analysis of phase noise in differential cross-coupled inductance–capacitance (LC) oscillators is presented. The effect of tail current and tank power dissipation on the voltage amplitude is shown. Various noise sources in the complementary cross-coupled pair are identified, and their effect on phase noise is analyzed. The predictions are in good… (More)

- Sunderarajan S Mohan, Maria Del Mar Hershenson, Stephen P Boyd, Thomas H Lee
- 1999

—We present several new simple and accurate expressions for the DC inductance of square, hexagonal, octagonal, and circular spiral inductors. We evaluate the accuracy of our expressions, as well as several previously published inductance expressions, in two ways: by comparison with three-dimensional field solver predictions and by comparison with our own… (More)

- Thomas H Lee, Ali Hajimiri
- 2000

—Linear time-invariant (LTI) phase noise theories provide important qualitative design insights but are limited in their quantitative predictive power. Part of the difficulty is that device noise undergoes multiple frequency translations to become oscillator phase noise. A quantitative understanding of this process requires abandoning the principle of time… (More)

We present a method for optimizing and automating component and transistor sizing for CMOS operational amplifiers. We observe that a wide variety of performance measures can be formulated as posynomial functions of the design variables. As a result, amplifier design problems can be formulated as a geometric program, a special type of convex optimization… (More)

We present an efficient method for optimal design and synthesis of CMOS inductors for use in RF circuits. This method uses the the physical dimensions of the inductor as the design parameters and handles a variety of specifications including fixed value of inductance, minimum self-resonant frequency, minimum quality factor, etc. Geometric constraints that… (More)