Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems

(ACTIVE) TIDA-01054

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Key Document

Description

The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the unwanted noise degradation of EMI while saving board space. This design allows for a system SNR performance of 100.13 dB using a 20-bit, 1-MSPS SAR ADC, which almost matches the 100.14 dB SNR performances when using external power sources.

Features
  • Power design minimizing DC to DC EMI impact on system performance
  • Two 20-bit SAR ADC channels
  • Modular front-end reference design for high channel count systems that can be repeated
  • Up to +/-4V input signal (8Vpp differential)

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TI Devices (20)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS8900B  20-Bit, 1-MSPS, SAR ADC with Internal Reference Buffer, LDO & multiSPI™ Digital Interface  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
LM46001  3.5 to 60V, 1A Synchronous Step-Down Voltage Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM53635-Q1  2.5/3.5A, 36 V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM5574  75V, 0.5A Step-Down Switching Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM7705  Low Noise Negative Bias Generator  Buck/Boost, Inverting or Split-Rail  Sample & Buy View Design Kits & Evaluation Modules
LMK00804B  Low Skew, 1-to-4 Multiplexed Differential/LVCMOS-to-LVCMOS/TTL Fanout Buffer  Clock Buffers  Sample & Buy View Design Kits & Evaluation Modules
LMK61E2  Ultra-Low Jitter Fully Programmable Oscillator, Integrated EEPROM, +/-50ppm  Clock and Timing  Sample & Buy View Design Kits & Evaluation Modules
LMZ14201  SIMPLE SWITCHER® 6V to 42V, 1A Power Module in Leaded Surface Mount TO Package  Non-Isolated Module  Sample & Buy View Design Kits & Evaluation Modules
LMZ14202  SIMPLE SWITCHER® 6V to 42V, 2A Power Module in Leaded SMT-TO Package  Non-Isolated Module  Sample & Buy View Design Kits & Evaluation Modules
LMZ14203  SIMPLE SWITCHER® 6V to 42V, 3A Power Module in Leaded Surface Mount TO Package  Non-Isolated Module  Sample & Buy View Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA625  High Bandwidth, High Precision, Low Noise & Distortion Amplifier SAR ADC Driver with Power Scaling  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA827  Low-Noise, High-Precision, JFET-Input Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5040  Low Noise, Very Low Drift, Precision Series Voltage Reference  Voltage Reference  Sample & Buy Not Available
REF6041  High-Precision Voltage Reference With Integrated High-Bandwidth Buffer  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
SN74AHC1G04  Single Inverter Gate  Logic  Sample & Buy View Design Kits & Evaluation Modules
SN74AUP1G80  Low-Power Single Postitive-Edge-Triggered D-Type Flip-Flop  Logic  Sample & Buy View Design Kits & Evaluation Modules
THS4551  Low Noise, Precision, 150MHz, Fully Differential Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A3001-EP  Enhanced Product Vin -3V to -36V, -200mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator  Power Management Products  Sample & Buy Not Available
TPS7A47  36V, 1A, 4.17╬╝VRMS, RF Low-Dropout (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 2781 18 Sep 2017 59
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1236 15 Sep 2017 16
ZIP 45512 15 Sep 2017 28
PDF 3668 15 Sep 2017 15
PDF 858 15 Sep 2017 13
PDF 230 15 Sep 2017 16
PDF 960 15 Sep 2017 46


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