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Datasheets

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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Другие варианты исполнения

LT1634 LT1634ACS8-1.25 LT1634ACS8-2.5 LT1634ACS8-4.096 LT1634ACS8-5 LT1634AIS8-1.25 LT1634AIS8-2.5 LT1634AIS8-4.096 LT1634AIS8-5 LT1634BCMS8-1.25 LT1634BCMS8-2.5 LT1634BCS8-1.25 LT1634BCS8-2.5 LT1634BCS8-4.096 LT1634BCS8-5 LT1634BIS8-1.25 LT1634BIS8-2.5 LT1634BIS8-4.096 LT1634CCZ-1.25 LT1634CCZ-2.5 LT1634CCZ-4.096 LT1634CCZ-5

Design Notes

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  1ВµA Op Amp Permits Precision Portable Circuitry &mdash DN163
  PDF, 78 Кб, Файл опубликован: 2 сен 1997
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  1µA Op Amp Permits Precision Portable Circuitry – Design Note 163
  Mitchell Lee and Jim Williams
  The circuit’s internal AC coupling prevents A1’s DC characteristics from influencing overall DC performance,
  accounting for the extremely low offset errors noted. A new dual op amp with only 1μA power consumption and precision DC specifications permits high
  performance portable applications. The LT В®1495
  has 375ОјV offset, 2ОјV/В°C drift, 1nA bias current and
  100dB of open-loop gain. These attributes, combined
  with careful design, make portable, high performance
  circuitry possible. The desired micropower operation and A1’s bandwidth
  dictate the 5Hz clock rate. As such, resultant overall
  bandwidth is low. Full power bandwidth is 0.05Hz with
  a slew rate of about 1V/s. Clock related noise, about
  5μV, can be reduced by increasing CCOMP, with commensurate bandwidth reduction. 5.5μA, 0.05μV/°C Chopped Amplifier
  Figure 1 shows a chopped amplifier requiring only 5.5μA
  supply current. Offset voltage is 5ОјV, with 0.05ОјV/В°C
  drift. Gain exceeding 108 affords high accuracy, even
  at large closed-loop gains. 0.03% Linear V/F Converter with 13ОјA Power Drain
  Figure 2’s voltage-to-frequency converter takes full
  advantage of the LT1495’s low power consumption.
  A 0V to 2.5V input produces a 0Hz to 10kHz output,
  with 0.03% linearity, 250ppm/В°C drift and 10ppm/V
  supply rejection. Maximum current consumption is
  only 13ОјA, 200 times lower than currently available ICs. …

Статьи

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  Designing the LT1167 Instrumentation Amplifier into a Single 5V Supply Application &mdash LT Journal
  PDF, 119 Кб, Файл опубликован: 1 июн 1999
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  DESIGN IDEAS Designing the LT1167
  by Adolfo A. Garcia
  Instrumentation Amplifier
  into a Single 5V Supply Application
  Introduction Circuit Operation
  operate near the sensor or circuit’s
  positive supply voltage or ground
  (common). Even though the signal
  conditioning circuitry need not operate at the extremes of the supply
  voltage range, the output voltage swing
  of the circuit should be as large as
  possible for maximum dynamic range.
  The circuit illustrated in Figure 1
  achieves high precision performance
  while operating from a single 5V
  supply. The trick here is to reference
  the dual-supply instrumentation
  amplifier’s inputs to a stable midpoint supply and then follow the
  instrumentation amplifier with a
  single-supply precision operational
  amplifier with a rail-to-rail output
  stage. This “composite” instrumentation amplifier uses an LT1167 (a high
  performance instrumentation amplifier in an SO-8 package) for the input …

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  How to Choose a Voltage Reference &mdash LT Journal
  PDF, 282 Кб, Файл опубликован: 1 мар 2009
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  L DESIGN FEATURES How to Choose a Voltage Reference
  by Brendan Whelan Why Voltage References? 5V It is an analog world. All electronic
  devices must in some way interact with
  the “real” world, whether they are in
  an automobile, microwave oven or cell
  phone. To do that, electronics must be
  able to map real world measurements
  (speed, pressure, length, temperature)
  to a measurable quantity in the electronics world (voltage). Of course, to
  measure voltage, you need a standard
  to measure against. That standard is
  a voltage reference. The question for
  any system designer is not whether he
  needs a voltage reference, but rather,
  which one?
  A voltage reference is simply that—a
  circuit or circuit element that provides
  a known potential for as long as the circuit requires it. This may be minutes,
  hours or years. If a product requires
  information about the world, such VIN 18k LTC1286
  1
  2 LT1634-4.096 0.1ВµF 3
  4 VREF VCC +IN CLK –IN DOUT GND CS/SHDN 8 5V 7 …

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  Measure Resistances Easily, without Reference Resistor or Current Source &mdash LT Journal
  PDF, 154 Кб, Файл опубликован: 1 май 2000
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  DESIGN IDEAS Measure Resistances Easily, without
  Reference Resistor or Current Source
  by Glen Brisebois
  Measuring the resistance of a
  device, for example a thermistor, usually requires biasing it with a precision
  current source or combining it with
  several other precision resistors in a
  bridge. The circuit of Figure 1 shows
  how to use the new LT1168 instrumentation amplifier to achieve a
  precision resistance-to-voltage conversion as simply as possible.
  Normally, the resistor across pins 1
  and 8 is the gain-set resistor and the
  voltage across pins 3 and 2 is the
  variable to be measured. In this case, however, the 1.25V reference establishes a fixed input voltage so that the
  variable to be measured is now the
  resistance. The equation for VOUT vs
  RT is VOUT = 1.25V 49.4kΩ/RT. Given
  the limitation on output swing (with
  the supply voltages shown), the smallest measurable resistance is about
  4.5k. The highest resolvable resistance is limited to about 200M by the
  300ВµV output offset voltage of the
  LT1168. The 0.05% accuracy of the
  LT1634 is not an issue here, because …

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Классификация производителя

• Signal Conditioning > Voltage References > Shunt Voltage References | Micropower Voltage References