VCA5807 Series
Fully Integrated, 8-channel, Voltage Controlled Amplifier w/ Passive CW Mixer
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Supplier Device Package | Applications | Mounting Type | Type | Package / Case | Board Type | Channels per IC▲▼ | Utilized IC / Part | -3db Bandwidth▲▼ | Voltage - Supply, Single/Dual (±)▲▼ | Voltage - Supply, Single/Dual (±)▲▼ | Supplied Contents | Output Type | Current - Output / Channel▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
100-HTQFP (14x14) | Medical Ultrasound Imaging, Sonar | Surface Mount | Variable Gain | 100-TQFP Exposed Pad | ||||||||||
Texas Instruments VCA5807EVMVCA5807 8 - Octal Channels per IC Variable Gain Amplifier Evaluation Board | Fully Populated | 8 ul | VCA5807 | 800000 Hz | 3.5999999046325684 V, 5.5 V | 3.1500000953674316 V, 4.75 V | Board(s) | Differential | 0.019999999552965164 A |
Key Features
• 8-Channel Voltage Controlled AmplifierLNA, VCAT, PGA, LPF, and CW MixerProgrammable Low-Noise Amplifier (LNA)24/18/12 dB Gain0.25/0.5/1 VPPLinear Input Range0.63/0.7/0.9 nV/rtHz Input Referred NoiseProgrammable Active Termination40 dB Low Noise Voltage Controlled Attenuator (VCAT)24/30 dB Programmable Gain Amplifier (PGA)3rdOrder Linear Phase Low-Pass Filter (LPF)10, 15, 20, 30 MHzButterworth CharacteristicsNoise/Power Optimizations (Full Chain)99 mW/CH at 0.75 nV/rtHz56 mW/CH at 1.1 nV/rtHz80 mW/CH at CW ModeExcellent Device-to-Device Gain Matching±0.5 dB (typical) and ±1.05 dB (max)Low Harmonic DistortionFast and Consistent Overload RecoveryLow Frequency Sonar Signal ProcessingPassive Mixer for Continuous Wave Doppler (CWD)Low Close-in Phase Noise –156 dBc/Hz at 1 KHz off 2.5 MHz CarrierPhase Resolution of 1/16λSupport 32X,16X, 8X, 4X and 1X CW Clocks12dB Suppression on 3rdand 5thHarmonicsFlexible Input Clocks14mm x 14mm, 100-pin TQFP8-Channel Voltage Controlled AmplifierLNA, VCAT, PGA, LPF, and CW MixerProgrammable Low-Noise Amplifier (LNA)24/18/12 dB Gain0.25/0.5/1 VPPLinear Input Range0.63/0.7/0.9 nV/rtHz Input Referred NoiseProgrammable Active Termination40 dB Low Noise Voltage Controlled Attenuator (VCAT)24/30 dB Programmable Gain Amplifier (PGA)3rdOrder Linear Phase Low-Pass Filter (LPF)10, 15, 20, 30 MHzButterworth CharacteristicsNoise/Power Optimizations (Full Chain)99 mW/CH at 0.75 nV/rtHz56 mW/CH at 1.1 nV/rtHz80 mW/CH at CW ModeExcellent Device-to-Device Gain Matching±0.5 dB (typical) and ±1.05 dB (max)Low Harmonic DistortionFast and Consistent Overload RecoveryLow Frequency Sonar Signal ProcessingPassive Mixer for Continuous Wave Doppler (CWD)Low Close-in Phase Noise –156 dBc/Hz at 1 KHz off 2.5 MHz CarrierPhase Resolution of 1/16λSupport 32X,16X, 8X, 4X and 1X CW Clocks12dB Suppression on 3rdand 5thHarmonicsFlexible Input Clocks14mm x 14mm, 100-pin TQFP
Description
AI
The VCA5807 is an integrated Voltage Controlled Amplifier (VCA) specifically designed for ultrasound systems in which high performance and small size are required. The VCA5807 integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the VCA5807 is a suitable ultrasound analog front end solution not only for high-end systems, but also for portable systems.
The VCA5807 contains eight channels of voltage controlled amplifier (VCA), and CW mixer. The VCA includes Low noise Amplifier(LNA), Voltage controlled Attenuator (VCAT), Programmable Gain Amplifier (PGA), and Low-Pass Filter (LPF). The LNA gain is programmable to support 250 mVPPto 1 VPPinput signals. Programmable active termination is also supported by the LNA. The ultra-low noise VCAT provides an attenuation control range of 40dB and improves overall low gain SNR which benefits harmonic imaging and near field imaging. The PGA provides gain options of 24 dB and 30 dB. Before the ADC, a LPF can be configured as 10 MHz, 15 MHz, 20 MHz, or 30 MHz to support ultrasound applications with different frequencies. In addition, the signal chain of the VCA5807 can handle signal frequency lower than 100 KHz, which enables it to be used not only in ultrasound applications but also in sonar applications.
The VCA5807 integrates a low power passive mixer and a low noise summing amplifier to accomplish on-chip CWD beamformer. 16 selectable phase-delays can be applied to each analog input signal. Meanwhile a unique 3rdand 5thorder harmonic suppression filter is implemented to enhance CW sensitivity.
The VCA5807 is available in a 14mm x 14mm, 100-pin TQFP package and it is specified for operation from -40°C to 85°C.
The VCA5807 is an integrated Voltage Controlled Amplifier (VCA) specifically designed for ultrasound systems in which high performance and small size are required. The VCA5807 integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the VCA5807 is a suitable ultrasound analog front end solution not only for high-end systems, but also for portable systems.
The VCA5807 contains eight channels of voltage controlled amplifier (VCA), and CW mixer. The VCA includes Low noise Amplifier(LNA), Voltage controlled Attenuator (VCAT), Programmable Gain Amplifier (PGA), and Low-Pass Filter (LPF). The LNA gain is programmable to support 250 mVPPto 1 VPPinput signals. Programmable active termination is also supported by the LNA. The ultra-low noise VCAT provides an attenuation control range of 40dB and improves overall low gain SNR which benefits harmonic imaging and near field imaging. The PGA provides gain options of 24 dB and 30 dB. Before the ADC, a LPF can be configured as 10 MHz, 15 MHz, 20 MHz, or 30 MHz to support ultrasound applications with different frequencies. In addition, the signal chain of the VCA5807 can handle signal frequency lower than 100 KHz, which enables it to be used not only in ultrasound applications but also in sonar applications.
The VCA5807 integrates a low power passive mixer and a low noise summing amplifier to accomplish on-chip CWD beamformer. 16 selectable phase-delays can be applied to each analog input signal. Meanwhile a unique 3rdand 5thorder harmonic suppression filter is implemented to enhance CW sensitivity.
The VCA5807 is available in a 14mm x 14mm, 100-pin TQFP package and it is specified for operation from -40°C to 85°C.