IC manufacturers Texas Instruments

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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

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
TiØ ID
(mm)
Ø OD
(mm)
Qty.Pins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
885012206076SPEC
9 files 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 0.4 4000 0.8 7" Tape & Reel
9774050360RSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

6 files 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 M3 4.2 6 650 Tape and Reel
61300211121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 5.08 2 Single Pin Header Straight 3 Bag
Order Code Data­sheet Simu­lation
885012206076SPEC
9774050360RSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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)
Fl
(mm)
TiØ ID
(mm)
Ø OD
(mm)
Qty.Pins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples