MAX2078
Octal-Channel Ultrasound Front-End with CW Doppler Mixers
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Breakthrough Levels of Performance for High-Channel Count Cart-Based and Portable Ultrasound Imaging Equipment
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Features
- 8 Full Channels of LNA, VGA, AAF, and CWD Mixers in a Small, 10mm x 10mm TQFN Package
- Pin Compatible with MAX2077 with LNA, VGA, and AAF in 10mm x 10mm TQFN Variant
- Ultra-Low Full-Channel Noise Figure of 2.4dB at RIN = RS = 200Ω
- Low Output-Referred Noise of 23nV/
at 5MHz, 20dB Gain, Yielding a Broadband SNR of 68dB** for Excellent Second-Harmonic Imaging
- High Near-Carrier SNR of 140dBc/Hz at 1kHz Offset from a 5MHz, 1VP-P Output Signal, and 20dB of Gain for Excellent Low-Velocity PW and Color-Flow Doppler Sensitivity in a High-Clutter Environment
- Ultra-Low-Power 64.8mW per Full-Channel (LNA, VGA, and AAF) Normal Imaging Mode (234mW per Channel in CWD Mode)
- Selectable Active Input-Impedance Matching of 50Ω, 100Ω, 200Ω, and 1kΩ
- Wide Input-Voltage Range of 330mVP-P in High LNA Gain Mode and 550mVP-P in Low LNA Gain Mode
- Integrated Selectable 3-Pole 9MHz, 10MHz, 15MHz, and 18MHz Butterworth AAF
- Fast-Recovery, Low-Power Modes (< 2µs)
- Fully Integrated, High Dynamic Range CWD Beamformer with Near-Carrier SNR of 154dBc/Hz at 1kHz Offset from a 1.25MHz, 200mVP-P Input Clutter Signal
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The MAX2078 octal-channel ultrasound front-end is a fully integrated bipolar, high-density octal-channel ultrasound receiver optimized for low cost, high-channel count, high-performance portable and cart-based ultrasound systems. The easy-to-use IC allows the user to achieve high-end 2D, PW, and CW Doppler (CWD) imaging capability using substantially less space and power. The highly compact imaging receiver lineup, including low-noise amplifier (LNA), variable-gain amplifier (VGA), and anti-alias filter (AAF), achieves an ultra-low 2.4dB noise figure at RS = RIN = 200Ω at a very low 64.8mW per channel power dissipation. The full imaging receiver channel has been optimized for second-harmonic imaging with -64dBFS second-harmonic distortion performance with a 1VP-P 5MHz output signal. The bipolar front-end has also been optimized for excellent low-velocity PW and color-flow Doppler sensitivity with an exceptional near-carrier SNR of 140dBc/Hz at 1kHz offset from a 5MHz 1VP-P output clutter signal.
A fully integrated high-performance, programmable CWD beamformer is also included. Separate I/Q mixers for each channel are available for optimal CWD sensitivity in high-clutter environments, yielding an impressive near-carrier SNR of 154dBc/Hz at 1kHz offset from a 1.25MHz 200mVP-P input clutter signal.
The MAX2078 octal-channel ultrasound front-end is available in a small 10mm x 10mm, 68-pin thin QFN package with an exposed pad and is specified over a 0°C to +70°C temperature range.
Applications
- Medical Ultrasound Imaging
- Sonar
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MAX2078
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Documentation
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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Product7 |
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Ultrasound Variable-Gain Amplifier |
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Ultrasound VGA Integrated with CW Octal Mixer |
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Quad-Channel, Ultra-Low-Noise Amplifier with Digitally Programmable Input Impedance |
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Ultrasound Variable-Gain Amplifier |
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Octal, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
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NOT RECOMMENDED FOR NEW DESIGNS |
Octal-Channel Ultrasound Front-End |
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Ultrasound VGA Integrated with CW Octal Mixer |
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Standard High Speed A/D Converters13 |
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PRODUCTION |
Octal, 10-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
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Obsolete |
Octal, 12-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
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PRODUCTION |
Octal, 12-Bit, 65Msps, 1.8V ADC with Serial LVDS Outputs |
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PRODUCTION |
Quad, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
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PRODUCTION |
Quad, 12-Bit, 65Msps, 1.8V ADC with Serial LVDS Outputs |
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PRODUCTION |
Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs |
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PRODUCTION |
Dual 10-Bit, 65Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs |
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PRODUCTION |
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs |
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PRODUCTION |
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs |
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RECOMMENDED FOR NEW DESIGNS |
10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference |
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RECOMMENDED FOR NEW DESIGNS |
10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference |
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PRODUCTION |
Ultra-Low-Power, 45Msps, Dual 8-Bit ADC |
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PRODUCTION |
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC |
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