Abstract: Aspects of an amplifier with bias stabilization are described. In one example, an amplifier includes an output amplifier stage having an input terminal, a biasing leg having a biasing node coupled to the input terminal, and a bias feedback network coupled between the input terminal of the output amplifier stage and the biasing leg. The bias feedback network can include a difference amplifier, a bypass stage, and a reference voltage generator in one example. The difference amplifier can generate a bias control signal based on a difference between a bias voltage at a base terminal of the output amplifier stage and a voltage reference generated by the reference voltage generator. The bias feedback network generates the bias control signal and controls the bias voltage based on feedback, to keep the bias voltage and bias current constant over process, temperature, gain and other variations for consistent performance.

Abstract: A coupling system in an integrated circuit to block DC components from an amplifier without large costly external coupling capacitors. An input receives an input signal which has a DC component. A first impedance element receives the input signal and blocks the DC component while a second impedance element connects between the output of the first impedance matching element and a ground node. The second impedance element and the first impedance element form a voltage divider network. The first and second impedance element are integrated elements. The amplifier receives the input signal after the DC component is blocked. The first impedance element and the second impedance element may comprise a resistor in series with a capacitor. In a differential pair configuration, an impedance matching element interconnects between a first path and a second path to impedance match the amplifier to a data source.

Abstract: Amplifiers with temperature-adaptive gain and peaking gain control are described. In one example, a temperature-adaptive amplifier includes an amplifier, a temperature sense circuit, and a peaking control level shifter to bias shift the output of the amplifier and adjust a peaking gain of the amplifier based on the temperature control signal. The peaking control level shifter can adjust a peaking gain of the amplifier based on the temperature control signal. The temperature-adaptive control can help to compensate for peaking gain in amplifiers based on the operating temperature of the amplifier. The control can help to compensate for unwanted changes in amplifier peaking gain, over time, resulting in more consistent peaking gain over the full operating frequency range of amplifiers.

Abstract: A distributed amplifier system comprising an impedance matching network configured to match an input impedance to an output impedance of the signal source, and a DC block configured to block DC components in the input signal. A variable gain amplifier adjusts the gain applied to the input signal based on a gain control signal to generate a gain adjusted signal. An emitter follower circuit receives and processes the gain adjusted signal to introduce gain peaking to create a modified signal. A distributed amplifier receives and amplifies the modified signal from the emitter follower circuit, to create an amplified signal. The distributed amplifier includes a termination network and one or more impedance matching elements configured for gain shaping the amplified signal. The gain peaking introduced by the emitter follower circuit is controlled by a variable current source. The distributed amplifier may be an open collector distributed amplifier.

Abstract: A distributed amplifier system comprising an impedance matching network configured to match an input impedance to an output impedance of the signal source, and a DC block configured to block DC components in the input signal. A variable gain amplifier adjusts the gain applied to the input signal based on a gain control signal to generate a gain adjusted signal. An emitter follower circuit receives and processes the gain adjusted signal to introduce gain peaking to create a modified signal. A distributed amplifier receives and amplifies the modified signal from the emitter follower circuit, to create an amplified signal. The distributed amplifier includes a termination network and one or more impedance matching elements configured for gain shaping the amplified signal. The gain peaking introduced by the emitter follower circuit is controlled by a variable current source. The distributed amplifier may be an open collector distributed amplifier.

Abstract: A distributed amplifier system comprising an impedance matching network configured to match an input impedance to an output impedance of the signal source, and a DC block configured to block DC components in the input signal. A variable gain amplifier adjusts the gain applied to the input signal based on a gain control signal to generate a gain adjusted signal. An emitter follower circuit receives and processes the gain adjusted signal to introduce gain peaking to create a modified signal. A distributed amplifier receives and amplifies the modified signal from the emitter follower circuit, to create an amplified signal. The distributed amplifier includes a termination network and one or more impedance matching elements configured for gain shaping the amplified signal. The gain peaking introduced by the emitter follower circuit is controlled by a variable current source. The distributed amplifier may be an open collector distributed amplifier.

Abstract: A distributed amplifier system comprising an impedance matching network configured to match an input impedance to an output impedance of the signal source, and a DC block configured to block DC components in the input signal. A variable gain amplifier adjusts the gain applied to the input signal based on a gain control signal to generate a gain adjusted signal. An emitter follower circuit receives and processes the gain adjusted signal to introduce gain peaking to create a modified signal. A distributed amplifier receives and amplifies the modified signal from the emitter follower circuit, to create an amplified signal. The distributed amplifier includes a termination network and one or more impedance matching elements configured for gain shaping the amplified signal. The gain peaking introduced by the emitter follower circuit is controlled by a variable current source. The distributed amplifier may be an open collector distributed amplifier.

Abstract: An enhanced electrical circuit can employ conductive fill components that can facilitate providing desirable resistive stabilization of the electrical circuit and other desirable circuit qualities without having to use a physical resistor. The electrical circuit can comprise a transmission line, which can be a microstrip line, that can have defined dimensions. The electrical circuit can comprise respective conductive fill components that can be in proximity to desired sides of the transmission line, wherein the respective conductive fill components can provide the desired resistive stabilization for the electrical circuit. The respective conductive fill components can be separated from, and not in contact with, each other based on respective gaps of a defined size(s) between respective adjacent conductive fill components. The respective conductive fill components can be across a single layer or multiple layers of conductive fill components.

Abstract: Amplifiers with temperature-adaptive gain and peaking gain control are described. In one example, a temperature-adaptive amplifier includes an amplifier, a temperature sense circuit, and a peaking control level shifter to bias shift the output of the amplifier and adjust a peaking gain of the amplifier based on the temperature control signal. The peaking control level shifter can adjust a peaking gain of the amplifier based on the temperature control signal. The temperature-adaptive control can help to compensate for peaking gain in amplifiers based on the operating temperature of the amplifier. The control can help to compensate for unwanted changes in amplifier peaking gain, over time, resulting in more consistent peaking gain over the full operating frequency range of amplifiers.

Abstract: A coupling system in an integrated circuit to block DC components from an amplifier without large costly external coupling capacitors. An input receives an input signal which has a DC component. A first impedance element receives the input signal and blocks the DC component while a second impedance element connects between the output of the first impedance matching element and a ground node. The second impedance element and the first impedance element form a voltage divider network. The first and second impedance element are integrated elements. The amplifier receives the input signal after the DC component is blocked. The first impedance element and the second impedance element may comprise a resistor in series with a capacitor. In a differential pair configuration, an impedance matching element interconnects between a first path and a second path to impedance match the amplifier to a data source.

Abstract: A semiconductor package and die assembly with a package having an exterior surface and an interior space, the interior space defined by a first side wall, and a second side wall that opposes the first side wall. Also part of the assembly is a package floor and a package ceiling. The package floor includes package floor conductors. The package ceiling opposes the package floor and includes package ceiling conductors in the package ceiling. One or more semiconductor dies are on the floor of the package floor. Electrical conductors electrically connect the one or more floor dies to the package floor conductors. One or more semiconductor dies are located on the package ceiling. Electrical conductors are configured to electrically connect the one or more ceiling dies to the package ceiling conductors. An air space is located between the package floor and the package ceiling.

Abstract: A semiconductor package and die assembly with a package having an exterior surface and an interior space, the interior space defined by a first side wall, and a second side wall that opposes the first side wall. Also part of the assembly is a package floor and a package ceiling. The package floor includes package floor conductors. The package ceiling opposes the package floor and includes package ceiling conductors in the package ceiling. One or more semiconductor dies are on the floor of the package floor. Electrical conductors electrically connect the one or more floor dies to the package floor conductors. One or more semiconductor dies are located on the package ceiling. Electrical conductors are configured to electrically connect the one or more ceiling dies to the package ceiling conductors. An air space is located between the package floor and the package ceiling.

Abstract: An energy management gateway is provided. The energy management gateway includes a memory, a processor coupled to the memory, a building management system (BMS) interface executed by the processor and an energy management system interface executed by the processor. The BMS interface is configured to receive a first message, the first message being structured according to an industrial protocol. The energy management interface is configured to translate the first message into a second message structured according to an energy management protocol different from the industrial protocol, the second message including a query comprising at least one command and a set of qualifiers, the query being addressed to at least one first endpoint and to provide the second message to a first domain member of a first domain including the at least one first endpoint, the first domain member being a device other than the at least one first endpoint.

Abstract: An energy management gateway is provided. The energy management gateway includes a memory, a processor coupled to the memory, a building management system (BMS) interface executed by the processor and an energy management system interface executed by the processor. The BMS interface is configured to receive a first message, the first message being structured according to an industrial protocol. The energy management interface is configured to translate the first message into a second message structured according to an energy management protocol different from the industrial protocol, the second message including a query comprising at least one command and a set of qualifiers, the query being addressed to at least one first endpoint and to provide the second message to a first domain member of a first domain including the at least one first endpoint, the first domain member being a device other than the at least one first endpoint.

Abstract: Methods and circuitry for implementing monolithic high gain wideband amplifiers. The invention implements an amplifier with a limiter that also performs a signal dividing function. In a specific embodiment, the limiter is designed to make available two in-phase outputs that are then used to drive two gate input lines of a combiner distributed amplifier.

Abstract: Methods and circuitry for implementing monolithic high gain wideband amplifiers. The invention implements an amplifier with a limiter that also performs a signal dividing function. In a specific embodiment, the limiter is designed to make available two in-phase outputs that are then used to drive two gate input lines of a combiner distributed amplifier.