from the Lab
Rarely Asked Questions
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Feature Articles: Products, Applications, Technology, Design Ideas, Tutorials,
FPGA-Based Systems Increase Motor-Control Performance
motor-control systems combine control algorithms, industrial networks, and user
interfaces, so they require additional processing power to execute all tasks in
real time. Multichip architectures are used to implement modern motor-control
systems: a DSP executes motor-control algorithms; an FPGA implements high-speed
I/O and networking protocols; a microprocessor handles executive control.
Powering ICs On and Off
Modern integrated circuits employ sophisticated circuits to
ensure that they turn on in a known state; and preserve memory, boot quickly,
and conserve power when they are powered down. This two-part article provides
tips for using power-on reset and power-down functions.
Isnít that gain specification a bit lopsided?
Can you explain why the minimum and maximum gain errors specified by my ADC differ so much?
Design a PLL
Loop Filter When Only the Zero Resistor and Capacitor are Adjustable
A standard procedure uses open-loop bandwidth and phase
margin to determine the component values for a PLL loop filter, solving
for the pole capacitor and deriving the remaining values. In some cases this
capacitor may be integrated, so the standard procedure can't be used. This
article proposes an alternative procedure that can be used when the value of the
pole capacitor is fixed.
Quickly Implement JESD204B on a
The JESD204 high-speed serial interface connects data
converters to logic devices. As the speed and resolution of converters
continues to increase, this interface has become common in ADCs, DACs,
and RF transceivers. Serializer/deserializer designs in FPGAs implement
the physical layer. This article describes how to quickly set up a
project using a Xilinx FPGA to implement the JESD204B interface.
So how do I choose a voltage reference?
eBooks and Printable
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Process Control and Industrial Automation
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Analog Dialogue is the technical
magazine of Analog Devices. It discusses products, applications,
technology, and techniques for analog, digital and mixed-signal