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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Другие варианты исполнения

LTC1092 LTC1092 LTC1093 LTC1093 LTC1094 LTC1094

Application Notes

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  Interfacing the LTC1090/1/2 &mdash AN26 (A-R)
  PDF, 5.6 Мб, Файл опубликован: 23 янв 1988
  A collection of interface applications between various microprocessors/ controllers and the LTC1090 family of data acquisition systems. The note is divided into sections specific to each interface.
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  Thermocouple Measurement &mdash AN28
  PDF, 988 Кб, Файл опубликован: 1 фев 1988
  Considerations for thermocouple-based temperature measurement are discussed. A tutorial on temperature sensors summarizes performance of various types, establishing a perspective on thermocouples. Thermocouples are then focused on. Included are sections covering cold-junction compensation, amplifier selection, differential/isolation techniques, protection, and linearization. Complete schematics are given for all circuits. Processor- based linearization is also presented with the necessary software detailed.
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  Application Note 28
  February 1988
  Thermocouple Measurement
  Jim Williams
  Introduction Thermocouples in Perspective In 1822, Thomas Seebeck, an Estonian physician, accidentally joined semicircular pieces of bismuth and copper
  (Figure 1) while studying thermal effects on galvanic arrangements. A nearby compass indicated a magnetic disturbance. Seebeck experimented repeatedly with different
  metal combinations at various temperatures, noting relative
  magnetic п¬Ѓeld strengths. Curiously, he did not believe that
  electric current was flowing, and preferred to describe the
  effect as “thermo-magnetism.” He published his results in
  a paper, “Magnetische Polarisation der Metalle und Erze
  durch Temperatur-Differenz” (see references). Temperature is easily the most commonly measured
  physical parameter. A number of transducers serve temperature measuring needs and each has advantages and
  considerations. Before discussing thermocouple-based
  measurement it is worthwhile putting these sensors in
  perspective. Figure 2’s chart shows some common contact
  temperature sensors and lists characteristics. Study reveals
  thermocouple strengths and weaknesses compared to
  other sensors. In general, thermocouples are inexpensive,
  wide range sensors. Their small size makes them fast and
  their low output impedance is a benefit. The inherent voltage output eliminates the need for excitation. Subsequent investigation has shown the “Seebeck Effect”
  to be fundamentally electrical in nature, repeatable, and
  quite useful. Thermocouples, by far the most common …

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  Data Acquisition Circuit Collection &mdash AN62
  PDF, 349 Кб, Файл опубликован: 1 окт 1994
  This application note presents a wide variety of data acquisition circuits. The detailed circuit schematics cover 8-, 10-, and 12- bit ADC and DAC applications, serial and parallel digital interfaces, battery monitoring, temperature sensing, isolated interfaces, and connections to various popular microprocessors and microcontrollers. An appendix covers suggested voltage references.
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  Application Note 62
  October 1994
  Data Acquisition Circuit Collection
  Kevin R. Hoskins
  INTRODUCTION
  This application note features 8-, 10-, and 12-bit data
  acquisition components in various circuit configurations.
  The circuits include battery monitoring, temperature sensing, isolated serial interfaces, and microprocessor and
  microcontroller serial and parallel interfaces. Also included are voltage reference circuits (Application Note 42
  contains more voltage reference circuits). Additional circuit information is located in the information
  references listed in the Circuit Index. Each information
  reference refers to either an application note (example:
  AN42 = Application Note 42), a data sheet (example:
  LTCВ®1292 DS = LTC1292 Data Sheet), or a design note
  (example: DN66 = Design Note 66).
  and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation. CIRCUIT INDEX
  FIGURE TITLE
  FIGURE NO.
  General Analog-to-Digital Application Circuits
  Two-Quadrant 150kHz Bandwidth Analog Multiplier . Figure 1 .
  Infinite Hold-Time Sample-and-Hold (tACQ = 240ns) . Figure 2 .
  Four-Quadrant 250kHz Bandwidth Analog Multiplier . Figure 3 .
  Demodulating a Signal Using Undersampling . Figure 4 . …

Design Notes

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  Data Acquisition Systems Communicate with Microprocessors Over 4 Wires &mdash DN1
  PDF, 75 Кб, Файл опубликован: 1 авг 1987
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  Data Acquisition Systems Communicate with
  Microprocessors Over 4 Wires – Design Note 1
  As board space and semiconductor package pins
  become more valuable, serial data transfer methods
  between microprocessors (MPUs) and their peripherals
  become more and more attractive. Not only does this
  save lines in the transmission medium, but, because
  of the savings in package pins, more function can be
  packed into both the MPU and the peripheral. Users are
  increasingly able to take advantage of these savings
  as more MPU manufacturers develop serial ports for
  their products1-3. However, peripherals which are able
  to communicate with these MPUs must be available in
  order for users to take full advantage. Also, MPU serial
  formats are not standardized so not all peripherals can
  talk to all MPUs.
  The LTC1090 Family
  A new family of 10-bit data acquisition circuits has
  been developed to communicate over just 4 wires to the
  recently developed MPU synchronous serial formats as
  well as to MPUs which do not have serial ports. These
  circuits feature software configurable analog circuitry
  including analog multiplexers, sample and holds, bipolar …

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  Temperature Measurement Using Data Acquisition Systems &mdash DN5
  PDF, 77 Кб, Файл опубликован: 1 мар 1989
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  Temperature Measurement Using Data Acquisition Systems
  Design Note 5
  William Rempfer and Guy Hoover
  Introduction
  Accurate temperature measurement is a difficult and
  very common problem. Whether recording a temperature, regulating a temperature or modifying a process
  to accommodate a temperature, the LTCВ®1090 family
  of data acquisition systems can provide an important
  link in the chain between the blast furnace temperature
  and the microcontroller. Features of the LTC1090 family
  can make temperature measurement easier, cheaper
  and more accurate.
  High DC input resistance and reduced span operation
  allow direct connection to many standard temperature
  sensors. Multiplexer options allow one chip to measure
  up to 8 channels of temperature information. Single
  supply operation, modest power requirements (~5mW)
  and serial interfaces make remote location possible.
  Switching power on and off lowers power consumption (560ОјW) even more for battery applications.
  Finally, because few sensors have accuracies as good as 0.1%, the 10-bit resolution and 0.05% accuracy of
  the LTC1090 family are just right for most temperature
  sensing applications.
  Thermocouple Systems …

Модельный ряд

Классификация производителя

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

Варианты написания:

LTC1091CN8PBF, LTC1091CN8 PBF