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reference designADS8900B | Demoboard TIDA-01351

Texas Instruments ADS8900B | Demoboard TIDA-01351

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

Overview

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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

Typical applications

  • Mother and Neonatal Care Monitors / Ultrasound Scanners

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))		SizeOperating TemperatureDF
(%)		RISOCeramic TypeL
(mm)		W
(mm)		H
(mm)		Fl
(mm)		PackagingTiØ ID
(mm)		Ø OD
(mm)		Qty.Pins
(pcs)		Pitch
(mm)		RowsGenderTypeIR
(A)		 Samples
885012206076SPEC
9 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)1 µF ±10% 25 0603 -55 °C up to +125 °C 100.5 GΩ X7R Class II 1.6 0.8 0.8 0.4 7" Tape & Reel – – – 4000 – – – – – –
9774050360RSPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

–6 files

EDA models: Components
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 Active i| Production is active. Expected lifetime: >10 years.WA-SMSI SMT Steel Spacer with internal Thread M3 – – – – -55 °C up to +150 °C – – – 5 – – – Tape and Reel M3 4.2 6 650 – – – – – –
61300211121SPEC
–7 files

EDA models: Components
ZIP

CAD files
ZIP

 Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header - Single – – – – -40 °C up to +105 °C –1000 MΩ – 5.08 – – – Bag – – – – 2 2.54 Single Pin Header Straight 3
Order Code Data­sheet Simu­lation
885012206076SPEC
9774050360RSPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

–
61300211121SPEC
–
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))		SizeOperating TemperatureDF
(%)		RISOCeramic TypeL
(mm)		W
(mm)		H
(mm)		Fl
(mm)		PackagingTiØ ID
(mm)		Ø OD
(mm)		Qty.Pins
(pcs)		Pitch
(mm)		RowsGenderTypeIR
(A)		 Samples
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