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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
| Topology | Other Topology |
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 series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Ti | Ø ID (mm) | Ø OD (mm) | Qty. | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206076 | SPEC | 8 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 | 10 | 0.5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | 4000 | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 9774050360R | SPEC | – | 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 | |
 | 61300211121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 5.08 | – | – | – | – | – | – | 2 | Single | – | Pin Header | Straight | 3 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206076 | SPEC | |
| 9774050360R | SPEC | – |
| 61300211121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Ti | Ø ID (mm) | Ø OD (mm) | Qty. | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
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