Improved offset-compensation schemes for switched-capacitor circuits

Temes, Gábor C.; Haug, K.

doi:10.1049/el:19840353

Cited by 63 publications

(6 citation statements)

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“…• Auto-zero or correlated double sampling [30,31] • Chopper stabilization [32,33] The auto-zero or correlated double sampling technique reduces the offset and low-frequency noise at the system level. [34,35] This technique requires sampled data operation.…”

Section: 51voltage Outputmentioning

confidence: 99%

17 Interface Circuitry and Microsystems

Malcovati

Maloberti

2006

MEMS: A Practical Guide to Design, Analysis, and Applications

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Section: 51voltage Outputmentioning

confidence: 99%

17 Interface Circuitry and Microsystems

Malcovati

Maloberti

2006

MEMS: A Practical Guide to Design, Analysis, and Applications

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“…With the field concentrators used, the magnetic field component perpendicular to the chip is equal to 50 mT FS for the 20 A range and 500 mT FS for the 200 A range, thus leading to sensor output voltages of 10 mV and 100 mV FS, respectively. [10] with binary-weighted capacitor banks to allow offset and gain calibration.…”

Section: Current Monitor Architecturementioning

confidence: 99%

Technology‐Driven Alternatives for Smart Sensor Interfaces

Baschirotto

Malcovati

2003

Sensors Update

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The importance of integrated microsystems is continuously growing because of the combination of two trends: the progress of silicon sensor technology and the introduction of new techniques for interface circuits. In this chapter we show how different approaches to the implementation of smart sensor systems, basically driven by the available fabrication technologies, can lead to successful designs. Three examples are presented: a fully integrated current monitor, a biaxial accelerometer, and a rotational accelerometer. The current monitor is an example of single chip implementation. It supports two different operating ranges (20 A and 200 A full scale), provides digitally programmable gain and offset with an on-chip PROM, and achieves 9 bits of resolution and ± 0.6 LSB of linearity. The biaxial accelerometer and the rotational accelerometer are examples of implementations based on two chips in the same package. They achieve 80 dB of dynamic range with ±1 g full-scale signal over a 30 Hz bandwidth and 38 dB of dynamic range with 200 rad/s 2 full-scale signal over an 800 Hz bandwidth.

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“…5, while the capacitance and design parameter values are summarized in Table II. This circuit, consisting of an integrator with autozero [6], a latched comparator, and a flip-flop (D), is very similar to a first-order Because of the periodic reset of the integrator, the behavior of this circuit is deterministic rather than stochastic (i.e., for equal input signals, we obtain equal output bitstreams). Moreover, the decimating filter can be reduced to a simple up/down counter, as shown in Fig.…”

Section: B Incremental A/d Convertermentioning

confidence: 99%

An integrated microsystem for 3-D magnetic field measurements

Malcovati

Maloberti

2000

IEEE Trans. Instrum. Meas.

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In this paper, we present a portable, battery-operated, three-dimensional magnetic microsystem (magnetodosimeter), intended for monitoring the workers' exposure to magnetic fields in particular working environments, such as hospitals or physics laboratories. The proposed microsystem is based on a multichip module containing three equal channels for the three components of the magnetic field measurement, a microprocessor, and a memory. Each single-chip channel detects the magnetic field, converts it into the digital domain, and delivers the result to the microprocessor by means of an on-chip serial interface. The single-chip channel, fabricated in a 0.8-m CMOS technology, is sensitive to magnetic fields ranging from 0200 to +200 mT, achieving 12 bits of resolution, 11 bits of linearity, and an overall accuracy better than 1% in the temperature range from 020 to +80 C.

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Improved offset-compensation schemes for switched-capacitor circuits

Cited by 63 publications

References 0 publications

17 Interface Circuitry and Microsystems

17 Interface Circuitry and Microsystems

Technology‐Driven Alternatives for Smart Sensor Interfaces

An integrated microsystem for 3-D magnetic field measurements

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