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LTC1850 LTC1850

Notas de Diseño

• Descargar
  12-Bit ADC with Sequencer Simplifies Multiple-Input Applications &mdash DN274
  PDF, 77 Kb, Archivo publicado: dic 2, 2001
  Extracto del documento

  12-Bit ADC with Sequencer Simplifies Multiple-Input
  Applications – Design Note 274
  Jeff Huehn
  The LTC В®1851 is a new 12-bit, 1.25Msps ADC with
  an 8-channel input multiplexer, a programmable gain
  sample-and-hold and an internal reference. This Design
  Note describes a novel feature of the LTC1851: a programmable sequencer that can automatically control
  the input mux and sample-and-hold.
  New ADC Automatically Converts Multiple Inputs
  with Different Spans at Different Rates
  Let’s imagine a hypothetical application with the following inputs: input A has a range of 0V to 4.096V
  and needs to be sampled at 400ksps, input B needs
  400ksps with a range of 0V to 2.048V, input C has a
  range of В±2.048V around 2.5V and needs 200ksps,
  input D needs 100ksps with a range of В±1.024V and
  is truly differential with a common mode of 2V and
  input E needs 100ksps with a range of 1V to 3.048V.
  There are both single-ended and differential, unipolar
  and bipolar inputs, two different spans and different
  required sampling rates.
  The solution is the LTC1851 sequencer, which allows
  the user to program a repeating pattern of up to 16
  independent mux addresses and conп¬Ѓgurations and …

Artículos

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  12-Bit, 1.25Msps ADC with 8-Channel Programmable MUX Offers Incredible Versatility &mdash LT Journal
  PDF, 89 Kb, Archivo publicado: dic 1, 2001
  Extracto del documento

  LINEAR TECHNOLOGY
  DECEMBER 2001 IN THIS ISSUE…
  COVER ARTICLE
  12-Bit, 1.25Msps ADC with
  8-Channel Programmable MUX
  Offers Incredible Versatility . 1
  Dave Thomas Issue Highlights . 2
  LTCВ® in the News . 2 VOLUME XI NUMBER 4 12-Bit, 1.25Msps ADC with
  8-Channel Programmable
  MUX Offers Incredible
  by Dave Thomas
  Versatility
  Close Your Eyes, Make a Wish DESIGN FEATURES
  Accurate and Fast 80MHz
  Amplifier Draws only 2mA . 9
  William Jett, Danh Tran and Glen Brisebois Monolithic Dual Battery Power
  Manager Increases Run Time and
  Decreases Charge Time .12
  Mark Gurries Think about everything you have ever
  wanted from a multiplexed ADC:
  plenty of channels with a fast
  per-channel throughput rate; singleended or differential inputs, or both;
  unipolar and bipolar input spans; …

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Clasificación del fabricante

• Data Conversion > Analog-to-Digital Converters (ADC) > Precision ADCs (Fs < 10Msps) > Multi Channel ADCs

Otros nombres:

LTC1851IFWTRPBF, LTC1851IFW TRPBF