Isolated, Transformerless, Bipolar Supply for 24-Bit ADCs Reference Design

(ACTIVE) TIDA-01434

Description & Features

Technical Documents

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Key Document

Description

This isolated, 3.65-mm thin reference design enables highly-integrated, bipolar input and high-performance solutions with a 24-bit delta-sigma analog-to-digital converter (ADC). Modern analog input modules need high performance in different aspects such as higher channel density at the same room size, which requires lower power consumption, and a wider operating temperature range at the same time.

Features
  • Performance evaluation of ISOWATT technology and inverting charge pump in conjunction with high precision delta-sigma ADC ADS124S08
  • Isolated power design with a 3.3-V backplane power supply source
  • Transformerless, 3.65-mm total height, highly integrated design
  • Comparison of effective resolution of ADS124S08 data sheet values, reference setup and design under test

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 TIDA-01434.1
(Output Voltage 1)
TIDA-01434.2
(Output Voltage 2)
TIDA-01434.3
(Output Voltage 3)
Vin (Min) (V)333
Vin (Max) (V)3.63.63.6
Vout (Nom) (V)3.3-2.52.5
Iout (Max) (A).05.01.01
Output Power (W).165.025.025
Isolated/Non-IsolatedIsolatedIsolatedIsolated
Input TypeDCDCDC
TopologyOtherLinear Regulator
Other
Linear Regulator

TI Devices (8)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS124S08  24-Bit, 4kSPS, 12-Ch Delta-Sigma ADC With PGA and Voltage Reference for Precision Sensor Measurement  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
ISO7741  High-Speed, Low-Power, Robust EMC Quad-Channel Digital Isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISOW7841  High-Efficiency, Low-Emissions, Reinforced Digital Isolator With Integrated Power  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM27762  Low-Noise Positive- and Negative-Output Charge Pump With Integrated LDO  Buck/Boost, Inverting or Split-Rail  Sample & Buy View Design Kits & Evaluation Modules
REF6225  3ppm/C High-Precision Voltage Reference with Integrated High-Bandwidth Buffer  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
SN74AHC1G04  Single Inverter Gate  Buffer/Driver  Sample & Buy View Design Kits & Evaluation Modules
SN74AHC1G125  Single Bus Buffer Gate with 3-State Output  Buffer/Driver  Sample & Buy View Design Kits & Evaluation Modules
TPS7A87  Dual 500mA Low-Noise (3.8╬╝VRMS) LDO Voltage Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 3877 20 Dec 2017 391
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 568 20 Dec 2017 50
ZIP 2159 20 Dec 2017 67
PDF 4186 20 Dec 2017 35
PDF 1466 20 Dec 2017 29
PDF 58 20 Dec 2017 271
PDF 877 20 Dec 2017 639
Related Tools & Software

Design Kits & Evaluation Modules (1)

Name Part Number Tool Type
MSP430FR5969 LaunchPad Development Kit  MSP-EXP430FR5969  Evaluation Modules & Boards 

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