TIPD211

20-bit, 1-MSPS, 4-Ch Small Form Factor Design for Test and Measurement Applications Reference Design

TIPD211

Design files

Overview

End equipment such as mixed signal SOC testers, memory testers, battery testers, liquid-crystal display (LCD) testers, benchtop equipment, high-density digital cards, high-density power cards, x-Ray, MRI, and so forth require multiple, fast, simultaneous sampling channels with excellent DC and AC performance but at low power and in small board spaces. The proposed solution in this design uses high-performance SAR ADCs (ADS8910B), precision amplifiers (OPA2625), and a precision voltage reference (REF5050).

Features
  • 18 bit 1 MSPS 4 Channel Simultaneous Sampling Data Acquisition system
  • 18 bit NMC DNL; +/- 0.5 LSB INL linearity performance for each channel
  • 101dB SNR, 124dB THD with 2kHz Sine wave input on each channel
  • >110dB Channel to Channel Isolation
  • This circuit design is tested and includes Getting Started guide.

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUBW7B.PDF (2610 K)

Reference design overview and verified performance test data

TIDRMU4A.PDF (1859 K)

Detailed schematic diagram for design layout and components

TIDRMU5A.PDF (68 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRMU6.PDF (239 K)

Detailed overview of design layout for component placement

TIDRMU8.ZIP (1212 K)

Files used for 3D models or 2D drawings of IC components

TIDCCG0.ZIP (471 K)

Design file that contains information on physical board layer of design PCB

TIDRMU7.PDF (1330 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Precision ADCs (<=10MSPS)

ADS8900B20-Bit, 1-MSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8902B20-Bit, 500-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8904B20-Bit, 250-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8910B18-Bit, 1-MSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8912B18-Bit, 500-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8914B18-Bit, 250-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8920B16-Bit, 1-MSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8922B16-Bit, 500-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS8924B16-Bit, 250-kSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

OPA2625High-Bandwidth, High-Precision, Low THD+N, 16-Bit and 18-Bit ADC Drivers with shutdown

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7A471-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision op amps (Vos<1mV)

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

Data sheet document-pdfAcrobat PDF open-in-new HTML
Series voltage references

REF50505-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide 20-Bit, 1-MSPS, 4-Ch Small-Form Factor Design for Test and Measurements (Rev. B) Nov. 28, 2016

Related design resources

Reference designs

REFERENCE DESIGN
TIPD115 Data Acquisition Optimized for Lowest Distortion, Lowest Noise, 18 bit, 1Msps Reference Design

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