Data acquisition optimized for low distortion: low noise 18-bit 1-MSPS reference design
Description
This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC: ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest noise & distortion solution for a full scale input sinewave of 10 KHz. This leads to a maximum possible value for Effective Number of Bits (ENOB) at a total power consumption of less than 50mW. The input driver for the ADC uses the fully-differential THS4521 for extremely low distortion: noise and high small signal bandwidth. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption.See more TI Precision Designs
Features
- 18 Bit: 1Msps Sampling RateDC: 10kHz ACOptimization: ENOBPower: 50mW @ AVDD = 5VUtilizes ADS8881 (18bit: 1Msps SAR ADC): THS4521 (Input): OPA333 + THS4281 + REF5045 (Reference)This Verified Design Includes:TheoryComponent SelectionTINA-TI SimulationSchematics and PCB LayoutVerification and Measured PerformanceModification Options
Applications
- Data acquisition (DAQ)
- Power analyzer
- Parametric measurement unit (PMU)
- Flat panel display (FPD) shorting bar pattern generator
- Vector signal transceiver (VST)
- Mother & neonatal care monitor
- Ultrasound smart probe
- Ultrasound scanner
- Wireless communications test
Product Categories
- Data converters
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| Download the bill of materials for TIPD115 | Download |
Test Data
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Download the test file for TIPD115| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIPD115 Gerber | 20 Sep 2013 | ZIP | 354 | |
| TIPD115 BOM | 20 Sep 2013 | 71 | ||
| TIPD115 Schematic | 20 Sep 2013 | 31 |