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Analog Front-End ICs
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MAX2088
16-Channel, High-Performance, Low-Power, Fully-Integrated Ultrasound Receiver
Industry's Highest Level of Integration and Performance Combined with Lowest Power
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The MAX2088 is a highly integrated 16-channel ultrasound receiver optimized for high channel count, high performance portable and cart-based ultrasound systems. Each channel of this highly compact receiver includes LNA, VGA, AAF, ADC, and several digital post processing circuits (including a digital HPF). It achieves an ultra-low 2.4dB noise figure at RS = RIN = 200Ω at a low 143mW per channel power dissipation when sampling at 50msps. Additionally, there is a lower power mode of operation that achieves 100mW per channel, but with reduced AC performance. The receive channel has been optimized for second harmonic imaging with -70dBFS second harmonic distortion performance at FIN = 5MHz over the full TGC range. Dynamic range has also been optimized for exceptional pulsed and color flow Doppler performance under high clutter conditions. The full receive channel exhibits an outstanding 81dBFS SNR at 5MHz with a 2MHz bandwidth. The bipolar front end and CMOS ADC have also been optimized for an exceptionally low, near-carrier modulation noise of -141dBc/Hz at 1KHz; offset from a 5MHz tone for excellent low-velocity Doppler sensitivity. The device also includes a 16-channel CWD beamformer for a full Doppler solution. Separate mixers for each channel are made available for optimal CWD sensitivity, yielding an impressive 157dBc/Hz dynamic range per channel at 1KHz offset from a 2MHz carrier. Furthermore, the MAX2088 also contains several digital post-processing options associated with digital mix-to-baseband operation. The device contains a 96dB SNR NCO, with a programmable frequency range from 800KHz to 17.6MHz with < 1KHz resolution. There is also a demodulation circuit, followed by a decimating FIR filter that can be programmed for different decimation ratios, where M can be programmed at any integer between 2 to 32. A 16xM tap low-pass FIR decimation filter is also provided. A post-decimation filter digital gain adjustment is also available. When mixed-to-baseband is used, it is possible to reduce the number of LVDS output lanes required (from 20 pairs to 12 pairs) if decimation rates are ≥ 4. The MAX2088 is offered in a 17mm x 16mm BGA package with 0.8mm ball pitch, and is specified over a 0°C to +85°C temperature range.
Key Features
- 16 Full Channels of Input Coupling Caps, LNA, VGA, AAF, CWD Mixers, 14-bit ADC, Bypassable Digital HPF, and Digital Mix to Baseband.
- Ultra-Low Full-Channel Receiver Noise Figure of 2.4dB at RIN = RS = 200Ω.
- High Dynamic Range Receiver with 81dBFS SNR at FIN = 5MHz and 2MHz Bandwidth.
- Low-Power (153mW per Channel) Receiver (Includes LNA, VGA, AAF, and ADC) Normal Imaging Mode at 65Msps at Full Performance, and a 100mW per Channel Ultra-Low Power Mode.
- Selectable Active Input Impedance LNA with 50, 100, 200, and 400 Input Selections (LNA Gain = 18dB); Along with an Open Feedback Loop Option with ~3KΩ Input Impedance at 2MHz and 1.2KΩ at 5MHz.
- Integrated Analog High-Pass Filter, Selectable 3 Pole 10MHz, 15MHz, 20MHz, and 30MHz Butterworth Anti-Alias Filter and a Bypassable Programmable Digital High-Pass Filter.
- Fully Integrated High-Performance CWD Beam-Former with Separate I and Q Mixers for Improved Dynamic Range (157dBc/Hz Dynamic Range per Channel at 1KHz from a 2MHz Carrier) and Sensitivity.
- Bypassable Demodulator Has 96dB SNR NCO, 16 x M Tap Polyphase Decimation Filter with Programmable Decimation Between 2 ≤ M ≤ 32
Applications/Uses
- Medium and High-Performance Cart-Based Ultrasound Systems
- Medium and High-Performance Portable Ultrasound Systems
- Echocardiograph Systems
- Real-Time 4D Ultrasound Systems
- Shear Wave Elastography Systems
Parametric specs for Ultrasound Analog Front-Ends
| Resolution (bits) | 14 |
| Power Dissipation (mW/Ch) (typ) | 100 |
| Noise Figure (dB) | 2.4 |
| Gain Control Range (±V) | 3 |
| Gain Range (dB) | 40 |
| HD2 (dBc) | -70 |
| # Channels | 16 |
| LNA Gain (dB) | 24 |
| Active Input Impedence (Ω) | 50 100 200 400 1000 |
| Package/Pins | CSBGA HYBRID/380 |
| Oper. Temp. (°C) | 0 to +85 |
| Budgetary Price (See Notes) | $168.00 @1k |
View More
Technical Docs
| Data Sheet | 16-Channel, High-Performance, Low-Power, Fully-Integrated Ultrasound Receiver | Sep 22, 2020 |
Click any title below to view the detail page where available.
Description
The MAX2084 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all components necessary to evaluate the performance of the MAX2084 low power, high performance 16-channel ultrasound receiver. The EV kit includes software compatible with the Windows XP®, Windows Vista®, and Windows 7® operating systems. The software provides a simple graphical user interface (GUI) for programming the features of the MAX2084 over a USB 3.0-compliant, super-speed interface. The MAX2084 digital LVDS outputs (VGA mode) are captured and stored using the companion Xilinx KC705 FPGA evaluation board for the Kintex-7 series FPGAs. In CWD mode, the CWD analog outputs are amplified, filtered and digitized using external circuitry, and the data is stored in the same manner. The FPGA board is compatible with Windows XP®, Windows Vista®, and Windows 7®.
View DetailsFeatures
- Allows Fast and Convenient Evaluation of MAX2084, 16-Channel, Ultrasound Receiver
- MAX2084 EV Kit Allows External Direct Drive or On-Board Regulated Power Supplies (Alternatively)
- 16-Channel Operation and Data Capture in VGA Mode or CW Doppler Mode
- Direct Interface with Kintex-7 FPGA Board Using 2 VITA-57 Compliant FPGA Mezzanine Card Connectors From Samtec (One High Pin Count, One Low Pin Count)
- Low-Power Nap and Shutdown Operating Modes
- On-Board Single-Ended Analog Input Transformer Circuitry
- Two On-Board MAX14808 Octal Three-Level/ Quad Five-Level High Voltage Pulsers (Pulser Control To Be Implemented In A Later Version Of Software. See Errata.)
- Software Selectable TX Digital Pulser Mode, Frequency, and Drive Current Control (Pulser Control to be Implemented in a Later Version of Software. See Errata.)
- Single-Ended to Differential ADC Clock Configuration
- On-board, Low Phase Noise, Crystal Oscillator, Clock Sources for ADC clock, CWD LO, and TX Synchronization. External Drive Alternatives Also Available
- Dual, Fast/Slow (Filtered), DAC-Driven, VGA Gain Control Paths
- CWD I/Q Measurement Channels with Low-Noise Amplifiers, Fast VGA-CWD Mode Transient Recovery Switches, and 20-bit, 1Msps ADCs
- Fully Assembled and Tested
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Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
Parametric specs for Ultrasound Analog Front-Ends
| Resolution (bits) | 14 |
| Power Dissipation (mW/Ch) (typ) | 100 |
| Noise Figure (dB) | 2.4 |
| Gain Control Range (±V) | 3 |
| Gain Range (dB) | 40 |
| HD2 (dBc) | -70 |
| # Channels | 16 |
| LNA Gain (dB) | 24 |
| Active Input Impedence (Ω) | 50 100 200 400 1000 |
| Package/Pins | CSBGA HYBRID/380 |
| Oper. Temp. (°C) | 0 to +85 |
| Budgetary Price (See Notes) | $168.00 @1k |
Key Features
- 16 Full Channels of Input Coupling Caps, LNA, VGA, AAF, CWD Mixers, 14-bit ADC, Bypassable Digital HPF, and Digital Mix to Baseband.
- Ultra-Low Full-Channel Receiver Noise Figure of 2.4dB at RIN = RS = 200Ω.
- High Dynamic Range Receiver with 81dBFS SNR at FIN = 5MHz and 2MHz Bandwidth.
- Low-Power (153mW per Channel) Receiver (Includes LNA, VGA, AAF, and ADC) Normal Imaging Mode at 65Msps at Full Performance, and a 100mW per Channel Ultra-Low Power Mode.
- Selectable Active Input Impedance LNA with 50, 100, 200, and 400 Input Selections (LNA Gain = 18dB); Along with an Open Feedback Loop Option with ~3KΩ Input Impedance at 2MHz and 1.2KΩ at 5MHz.
- Integrated Analog High-Pass Filter, Selectable 3 Pole 10MHz, 15MHz, 20MHz, and 30MHz Butterworth Anti-Alias Filter and a Bypassable Programmable Digital High-Pass Filter.
- Fully Integrated High-Performance CWD Beam-Former with Separate I and Q Mixers for Improved Dynamic Range (157dBc/Hz Dynamic Range per Channel at 1KHz from a 2MHz Carrier) and Sensitivity.
- Bypassable Demodulator Has 96dB SNR NCO, 16 x M Tap Polyphase Decimation Filter with Programmable Decimation Between 2 ≤ M ≤ 32
Applications/Uses
- Medium and High-Performance Cart-Based Ultrasound Systems
- Medium and High-Performance Portable Ultrasound Systems
- Echocardiograph Systems
- Real-Time 4D Ultrasound Systems
- Shear Wave Elastography Systems
Description
The MAX2088 is a highly integrated 16-channel ultrasound receiver optimized for high channel count, high performance portable and cart-based ultrasound systems. Each channel of this highly compact receiver includes LNA, VGA, AAF, ADC, and several digital post processing circuits (including a digital HPF). It achieves an ultra-low 2.4dB noise figure at RS = RIN = 200Ω at a low 143mW per channel power dissipation when sampling at 50msps. Additionally, there is a lower power mode of operation that achieves 100mW per channel, but with reduced AC performance. The receive channel has been optimized for second harmonic imaging with -70dBFS second harmonic distortion performance at FIN = 5MHz over the full TGC range. Dynamic range has also been optimized for exceptional pulsed and color flow Doppler performance under high clutter conditions. The full receive channel exhibits an outstanding 81dBFS SNR at 5MHz with a 2MHz bandwidth. The bipolar front end and CMOS ADC have also been optimized for an exceptionally low, near-carrier modulation noise of -141dBc/Hz at 1KHz; offset from a 5MHz tone for excellent low-velocity Doppler sensitivity. The device also includes a 16-channel CWD beamformer for a full Doppler solution. Separate mixers for each channel are made available for optimal CWD sensitivity, yielding an impressive 157dBc/Hz dynamic range per channel at 1KHz offset from a 2MHz carrier. Furthermore, the MAX2088 also contains several digital post-processing options associated with digital mix-to-baseband operation. The device contains a 96dB SNR NCO, with a programmable frequency range from 800KHz to 17.6MHz with < 1KHz resolution. There is also a demodulation circuit, followed by a decimating FIR filter that can be programmed for different decimation ratios, where M can be programmed at any integer between 2 to 32. A 16xM tap low-pass FIR decimation filter is also provided. A post-decimation filter digital gain adjustment is also available. When mixed-to-baseband is used, it is possible to reduce the number of LVDS output lanes required (from 20 pairs to 12 pairs) if decimation rates are ≥ 4. The MAX2088 is offered in a 17mm x 16mm BGA package with 0.8mm ball pitch, and is specified over a 0°C to +85°C temperature range.
Technical Docs
| Data Sheet | 16-Channel, High-Performance, Low-Power, Fully-Integrated Ultrasound Receiver | Sep 22, 2020 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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