Analog to digital converters (ADCs) need to float to the common mode of the input signal to absorb the harsh voltage conditions and transients. The best way to do this is to place an isolation barrier between the ADC and the external signal. Even applications that perform under moderate conditions can benefit from the presence of an isolator. The LTM2893 from Linear Technology provides such isolation, improving on system safety, especially when reading from high-resolution successive approximation Read more [...]
Initially, surface mount devices, especially ICs, came as perimeter-only packages, with pins for soldering placed along the edge of the device. As ICs became more complex, they needed more pins for external interfacing, which made the packages larger. Manufacturers soon realized there was a large unused real estate that lay just under the package. Therefore, they made the ball grid array (BGA) packaging, which, in place of pins, had solder balls aligned in a grid under the device. Soldering BGAs Read more [...]
Unlike AC circuits where a simple transformer can change the incoming voltage to a different level, DC circuits need an active device to change the voltage to the desired level. In general, there are two types of circuits to do this—switching and linear. Switching regulators are highly efficient and work on buck, boost, or buck-boost technology to change the voltage level. On the other hand, linear regulators such as LDOs are ideal for powering very low power devices or applications where the difference Read more [...]
CMOS and Bipolar are two of the pioneering technologies of the electronics field. Components fabricated with the CMOS technology dissipate lower power, have smaller noise margins, and are physically smaller. On the other hand, components fabricated with the bipolar technology operate at higher speeds, switch faster, and offer good noise performance. By combining the two, scientists have created the BiCMOS technology that offers a combination of advantages from both processes. For instance, BiCMOS Read more [...]
Switching power-conversion systems such as switching power supplies and power factor controllers increasingly demand higher energy efficiencies. For such energy-conscious designers, super-junction MOSFETs are a favored solution, as the technology allows smaller die sizes when considering key parameters such as on-resistance. This leads to an increase in current density while enabling designers to reduce circuit size. With increasing market adoption of this new technology goes up, other challenges Read more [...]
Linear Technology Corporation, now a part of Analog Devices, Inc., has recently placed on the market a power monitoring IC, LTC2992, which offers a wide-range, dual monitoring system for current, voltage, and power for 0-100 VDC rails. The IC is self-contained and does not need additional circuitry for functioning.
Users get a variety of options for operating the LTC2992. For instance, they can derive power from a 3-100 VDC monitored supply, or from a 2.7-100 VDC secondary supply, or from the shunt Read more [...]