摘要:
A dummy circuit is provided to which a bias circuit of an low noise amplifier (LNA) can be coupled to during power down of the LNA. The dummy circuit maintains the bias circuit at an approximately normal operating state to reduce wake up time of the LNA.
摘要:
A dummy circuit is provided to which a bias circuit of a low noise amplifier (LNA) can be coupled to during power down of the LNA. The dummy circuit maintains the bias circuit at an approximately normal operating state to reduce wake up time of the LNA.
摘要:
An analog signal processing circuit comprises a bias circuit, a first circuit including a control input that communicates with the bias circuit, a first terminal that generates an output current, and a second terminal, and a device that communicates with the second terminal of the first circuit, that includes a variable resistor, and that has a resistance that is modulated in response to an input signal to the analog signal processing circuit.
摘要:
An input circuit for an integrated circuit (IC), which is mounted on a package having an input pin, rejects signal energy at a first frequency. A first bondwire arranged on the package has one end that communicates with the pin and an opposite end that communicates with components of the IC. A second bondwire located on the package has one end that communicates with the pin and an opposite end that communicates with a capacitance. The capacitance and an inductance of the first and second bondwires resonate at the first frequency to reject signal energy at the first frequency. Bondwires are also used to eliminate external components such as resonant components and impedance matching circuits to reduce cost.
摘要:
A method for reducing a parasitic capacitance of an electrostatic discharge (ESD) protection circuit for an integrated circuit (IC) includes providing an ESD protection circuit including a plurality of transistors; coupling one end of a resistor to a shared drain of the plurality of transistors; and coupling an opposite end of the resistor to at least one of an input pad of the IC, a blocking capacitor of the IC and a transistor in the IC.
摘要:
A bias circuit for biasing a linear input stage of an amplifier comprises a first MOS device having a size. A second MOS device has a size and is arranged with the first MOS device in a cascode configuration. The second MOS device is operated in a saturation region. A third MOS device has a size and biases the first MOS device in a triode region. A bias switch ratio of the size of the first MOS device to the size of the third MOS device is greater than one.
摘要:
An impedance matching circuit is provided for an IC arranged on a package that matches an impedance of an external load. The circuit includes a package, an IC that is arranged on the package, and an impedance matching circuit. The impedance matching circuit includes a first bondwire arranged on the package that has one end that communicates with the external load and an opposite end that communicates with said IC, a capacitance element arranged on the IC, and a second bondwire arranged on the package that has one end that communicates with the external load and an opposite end that communicates with one end of said capacitance element.
摘要:
An input circuit for an integrated circuit (IC), which is mounted on a package having an input pin, rejects signal energy at a first frequency. A first bondwire arranged on the package has one end that communicates with the pin and an opposite end that communicates with components of the IC. A second bondwire located on the package has one end that communicates with the pin and an opposite end that communicates with a capacitance. The capacitance and an inductance of the first and second bondwires resonate at the first frequency to reject signal energy at the first frequency. Bondwires are also used to eliminate external components such as resonant components and impedance matching circuits to reduce cost.
摘要:
A low noise amplifier includes an input stage. The input stage includes a first device configured to receive an input signal. A second device is connected to the first device. The second device has a predetermined input impedance. The input stage is configured so that a change in the input signal to the first device causes a linearly proportional change in a conductance of the first device. A voltage at a junction between the first device and the second device remains substantially constant due to the predetermined input impedance of the second device.
摘要:
An electrostatic discharge (ESD) circuit operable to protect an internal circuit from ESD events and protect the internal circuit from high-side supply noise.