IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments TPS54060/ADS8688 | Demoboard TIPD167

Phase Compensated 8-Ch Multiplexed Data Acquisition System for Power Automation Reference Design

Overview

TopologyFlyback Converter
Output 118 V
IC revisionC

Description

This TI Verified Design provides the theory, component selection, TINA-TI simulations, Verification & Measurement Performance, Altium Schematics, PCB Layout for a Phase Compensated 8-Ch Multiplexed Data Acquisition System for Power Automation. The design uses a 16-bit, 8-Channel, 500ksps SAR ADC, ADS8688 with integrated analog front-end circuit for ease of system hardware design.The design introduces the concept of phase and phase Compensation, compares the additional phase delay introduced between the input channels of a non-simultaneous sampling ADC with a simultaneous sampling ADC, and provides a optimal algorithm to compensate for the phase delay introduced in a non-simultaneous implementation.Measured results demonstrate how the phase compensation algorithm used in this design compensates for the additional phase delay introduced by a multiplexed ADC, resulting in an equivalent performing solution as compared to a simultaneous sampling ADC solution.

Features

  • Verified Design Contains Theory, Component Selection, TINA-TI Simulation, Verification & Measured Performance, Altium Schematics and PCB Layout
  • ADS8688: 16-Bit, 500-kSPS, 8-Channel, Single-Supply, SAR ADC with Multiplexed and Bipolar Input
  • Single-ended sinusoidal input with amplitude of = ±10V and typical = 50 Hz
  • 0.002036 degree compensated phase difference

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL1
(µH)
L2
(µH)
IR
(A)
IR 2
(A)
ISAT
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
Type Samples
744870471SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-DD SMT Shielded Coupled Inductor 470 470 0.7 0.7 0.9 1 1 1.2 1.2 0.65 Crossed
Order Code Data­sheet Simu­lation
744870471SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL1
(µH)
L2
(µH)
IR
(A)
IR 2
(A)
ISAT
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres
(MHz)
Type Samples