A flexible 12-bit self-calibrated quad-core current-steering DAC

Radulov, Georgi; Quinn, Patrick; Hegt, Hans; Roermund, Arthur van

doi:10.1109/apccas.2008.4745951

Cited by 11 publications

(10 citation statements)

References 8 publications

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“…When the MSB (Most Significant Bit) is 0, the output is channel A. When the MSB is 1, the output is channel B [5] . The formula of the output voltage as in (1) …”

Section: E High Voltage Generating Circuitmentioning

confidence: 99%

Using DSP to design spectralog service instrument

Xue

Sun

Tan

et al. 2011

2011 International Conference on Electric Information and Control Engineering

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The paper presents a spectralog service instrument based on DSP processor. The instrument collects spectrum information from the well thousands of meters underground. The instrument consists of the lower computer and the communication device. The communication between the upper computer on the ground and lower computer in a well uses the Manchester code. The upper computer not only displays spectrum information on the computer, but also achieves to control the lower computer. The upper computer sends the command by a Manchester encode, the lower computer decodes the Manchester code and fulfill different tasks, including the collection and transmission of natural gamma ray spectralog, the collection and transmission of temperature information, the frequency of natural gamma ray radiation energy, etc. The spectralog service instrument is experimentally proved to be steady, reliable and effective.Keywords: DSP; spectralog service instrument; Manchester encoder and decoder I.

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“…When the MSB (Most Significant Bit) is 0, the output is channel A. When the MSB is 1, the output is channel B [5] . The formula of the output voltage as in (1) …”

Section: E High Voltage Generating Circuitmentioning

confidence: 99%

Using DSP to design spectralog service instrument

Xue

Sun

Tan

et al. 2011

2011 International Conference on Electric Information and Control Engineering

View full text Add to dashboard Cite

show abstract

“…Therefore, the transistors of the CalDAC have a smaller overdrive voltage (V GS − V T ) and also usually different width (W) and length (L) with respect to the main current source transistors. With the exemplary DAC of [6], measurements show that a relative correction step of ILSB,cor ILSB,main < 0.2 results in a 12 bits linearity and a relative correction step of ILSB,cor ILSB,main < 0.1 results in a 13 bits linearity [3].…”

Section: Temperature and Disturbance Dependencementioning

confidence: 99%

“…1, which is used in [5] and [6]. In the current cell, named Calibrated Unit Element (CUE), transistor M 1 is the main current source with output current I main .…”

Section: Temperature and Disturbance Dependencementioning

confidence: 99%

“…The ADC does not need to be fast or accurate and is implemented as a Successive Approximation (SAR) ADC [6], [7] with 5 bits linearity. The additional area for the ADC and the FSM is negligible compared to the area of the current source array.…”

Section: ) Unary Current Cellsmentioning

confidence: 99%

“…To quantify the temperature dependence, a simple transistor level simulation based on [6] is performed. Two calibrated CUEs with threshold voltage mismatch between each other are simulated over a temperature range of −50…”

Section: A Temperature Responsementioning

confidence: 99%

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