High-Resolution, High-SNR True Raw Data Conversion Reference Design for Ultrasound CW Doppler

(ACTIVE) TIDA-01351

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

The TIDA-01351 is a continuous wave (CW) signal conditioning subsystem for ultrasound imaging systems (64-, 128-, 192-, 256-channel ultrasound system). This design features 20-bit fully differential simultaneous sampling with true raw data available for processing. This TI Design consists of a fullydifferential signal path for I and Q channels, each using high-performance SAR analog-to-digital converters (ADCs) (ADS8900B), fully-differential precision amplifiers (THS4551), a dual low-noise, lowdropout (LDO) voltage regulator (TPS7A8801), and a precision voltage reference (REF5050). The TIDA-01351 can be interfaced with the PH1-EVM controller through the multiSPI™ digital interface, and the performance can be evaluated using a PC-based application (GUI) from any PC through the USB interface.

Features
  • Two simultaneous channels (I and Q) fully-differential signal chain providing zero-latency true raw data With SNR of 101.2dB and ENOB of 16.45
  • 8-channel summing, filtering, buffering, and gain implemented in single-stage-high-bandwidth, low-power, low-noise, single supply
  • High sampliing rate of 1 MSPS allows flexibility in post-processing to improve SNR and resolution
  • Bandpass filtering for frequency range of 50 Hz to 20 kHz
  • Operates from single 6-V power supply with total power consumption of 258 mW
  • Designed using 20-bit, 1 MSPS SAR ADC (ADS8900B) with INL of 1ppm and SNR of 104.5dB

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (5)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS8900B  20-Bit, 1-MSPS, SAR ADC with Internal Reference Buffer, LDO & multiSPI™ Digital Interface  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5050  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
THS4551  Low Noise, Precision, 150MHz, Fully Differential Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A88  Dual 1A Low-Noise (3.8μVRMS) LDO Voltage Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 2020 29 Jun 2017
Application notes (2)
Title Abstract Type Size (KB) Date Views
PDF 78 14 Jun 2017 201
PDF 410 09 Mar 2017 540
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 6708 16 Jun 2017 1,134
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 2381 31 Jan 2017 31
ZIP 2265 31 Jan 2017 114
PDF 4318 31 Jan 2017 107
PDF 942 31 Jan 2017 70
PDF 145 31 Jan 2017 171
PDF 1633 31 Jan 2017 475
More literature (1)
Title Abstract Type Size (KB) Date Views
PDF 477 21 Feb 2007 104
Related Tools & Software

Software (1)




Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki