Datasheet Linear Technology LT3472EDD#PBF — Datenblatt

Datenblätter

Konstruktionshinweise

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  True Rail-to-Rail, High Input Impedance ADC Simplifies Precision Measurements &mdash DN400
  PDF, 150 Kb, Datei veröffentlicht: Oct 4, 2006
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  advertisement True Rail-to-Rail, High Input Impedance ADC Simplifies
  Precision Measurements – Design Note 400
  Mark Thoren
  Introduction
  High input impedance and a wide input range are two
  highly desirable features in a precision analog-to-digital
  converter, and the LTCВ®2449 delta-sigma ADC has both.
  With just a few external components, the LTC2449 forms
  an exceptional measurement system with very high input
  impedance and an input range that extends 300mV beyond
  the supply rails.
  A designer may trade off the LTC2449’s 200nV resolution
  for faster conversion rates, but otherwise the LTC2449
  requires few to no performance tradeoffs. It simultaneously achieves 1ppm linearity (Figure 2), 200nV input
  resolution and a 5V input span. Ten п¬Ѓlter oversample
  ratios are available, providing data rates from 6.8 samples
  per second to 3500 samples per second. Normal mode
  rejection of 50Hz and 60Hz is better than 87dB in the 6.8sps
  mode. All DC specifications hold for all speeds—only the
  resolution changes. Such persistent high performance
  simplifies the design of otherwise challenging applications, such as 6-digit voltmeters, sensor interfaces, and industrial control. In addition, the LTC2449 digital
  interface and timing are extremely simple, and the No
  Latency architecture eliminates concerns about п¬Ѓlter …

Artikel

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  Single Converter Provides Positive and Negative Supplies &mdash LT Journal
  PDF, 329 Kb, Datei veröffentlicht: Jun 10, 2005
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  DESIGN IDEAS Single Converter Provides Positive
  by Jesus Rosales
  and Negative Supplies
  VIN
  2.7V TO 4.2V LP
  22ВµH VOUT1
  15V
  IOUT(P)* SWP
  VPOS RFBP
  549k
  CFBP, 4.7pF CIN
  2.2ВµF
  10V
  CNF
  1ВµF LN1
  47ВµH VIN SWN
  DN LT3472 FBP FBN
  SHDN SHDN
  SSP COUT(P)
  4.7ВµF
  16V GND SSN CSSP
  0.22ВµF *OUTPUT CURRENT
  VIN …

Modellreihe

Herstellerklassifikation

• Power Management > Switching Regulator > Inverting Regulators | LCD/CCD/OLED Bias | SEPIC Regulators
• Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost
• Power Management > PMIC & Multifunction > Multitopology DC/DC

Andere Namen:

LT3472EDDPBF, LT3472EDD PBF