The Experts below are selected from a list of 4023 Experts worldwide ranked by ideXlab platform
Sandro Rossi - One of the best experts on this subject based on the ideXlab platform.
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180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than -43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
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CICC - 180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than −43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
Davide Ghisu - One of the best experts on this subject based on the ideXlab platform.
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180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than -43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
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CICC - 180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than −43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
F. Moraveji - One of the best experts on this subject based on the ideXlab platform.
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A tiny, high-speed, wide-band, Voltage-Feedback Amplifier stable with all capacitive load
IEEE Journal of Solid-state Circuits, 1996Co-Authors: F. MoravejiAbstract:A tiny, high-speed, wide-band, Voltage-Feedback operational Amplifier capable of driving unlimited capacitive load is described. A class AB input stage is combined with a modified dynamic Witch-Hazel current mirror to provide high slew rate and wide bandwidth with a small die area and small idle current. An RC network couples part of the capacitive load into the high-impedance node, therefore lowering the dominant pole and increasing stability as a function of capacitive load. The part was fabricated on a 3 GHz, 40 V complementary bipolar process. The quiescent current of the chip is 4.5 mA with 1500 V//spl mu/m slew rate and a -3 dB bandwidth of 235 MHz. The part is operational from /spl plusmn/2.5 V to /spl plusmn/18 V supply range. Die size is 38 mils by 46 mils and it fits into a tiny surface outline transistor (SOT) package.
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A tiny, high-speed, Voltage-Feedback Amplifier stable with all capacitive loads
Proceedings of Bipolar Bicmos Circuits and Technology Meeting, 1Co-Authors: F. Moraveji, M. MusbahAbstract:A high-speed, Voltage-Feedback operational Amplifier capable of operating from +/- 1.8 V to +/- 20 V supplies and driving infinite capacitive load is described. Silicon evaluations show 188 MHz bandwidth and 1500 V//spl mu/s slew rate. Die size is 38/spl times/46 square mils in a tiny SOT package. The part has been fabricated on a 40 V poly-emitter complementary bipolar process.
Giulio Ricotti - One of the best experts on this subject based on the ideXlab platform.
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180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than -43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
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CICC - 180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than −43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
Anna Moroni - One of the best experts on this subject based on the ideXlab platform.
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180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than -43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
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CICC - 180Vpp output Voltage, 24MHz bandwidth, low power class AB current-Feedback high Voltage Amplifier for ultrasound transmitters
2018 IEEE Custom Integrated Circuits Conference (CICC), 2018Co-Authors: Davide Ghisu, Andrea Gambero, Marco Terenzi, Giulio Ricotti, Anna Moroni, Sandro RossiAbstract:A novel integrated high-Voltage high bandwidth linear Amplifier for medical ultrasonic transmitter applications is presented in this brief. Compared to digital high Voltage pulsers, linear Amplifiers have many advantages, such as lower harmonic distortion and the capability of generating complex arbitrary waveforms for coded-excitation mode. The Amplifier employs a current-Feedback technique that overcomes the gain-bandwidth product limitation of a conventional Voltage Feedback Amplifier, capable of generating a high output signal swing with a wide closed-loop bandwidth. The output stage is a mixed emitter follower and open drain architectures. The Amplifier is designed and implemented using a 0.18-μm CMOS silicon-on-insulator process with 200 V components. When driving a load of 50 pF in parallel with 100 Ω, it's capable of transmitting a sine-wave signal at a frequency of up to 20 MHz, a maximum signal swing of 180 Vpp, a second-order harmonic distortion (HD2) lower than −43 dB and a maximum slew rate of 12 V/ns with only 20 mW average power dissipation with 0.1 % duty cycle.
