Datasheet Linear Technology LTC1864 — 数据表

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LTC1865 LTC1865

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  250ksps, 16-Bit Micropower ADC Offers an Excellent Combination of SIze, Power and Speed &mdash DN294
  PDF, 54 Kb, 档案已发布: Sep 2, 2002
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  advertisement 250ksps, 16-Bit Micropower ADC Offers an Excellent
  Combination of Size, Power and Speed – Design Note 294
  Guy Hoover MSOP Package for Portable Applications
  Available in the MSOP package, the LTC1864 is well suited
  for portable applications where space is limited. As seen
  in Figure 1, the MSOP package provides considerable
  space savings over other serial parts available in 20-lead
  SW or 28-lead SSOP packages. 20-LEAD SW 28-LEAD SSOP MSOP
  DN294 F01 Figure 1. This 16-Bit ADC—Available in the Tiny MSOP
  Package—is an Obvious Space Saver Over Other Serial
  ADCs Low ADC Supply Current for
  Battery-Operated Applications
  With a typical supply current of only 850ВµA at the
  maximum sample rate of 250ksps, the LTC1864 already
  has one of the lowest power consumptions of any 16-bit
  ADC available. After a conversion, the LTC1864 goes into
  a low power SLEEP mode (ICC = 1nA typ, ICC = 3ВµA max)
  further reducing supply current. The LTC1864 can therefore run at true micropower levels in applications that do
  not require the maximum LTC1864 sampling rate. At
  1ksps, the supply current is typically only 2ВµA as shown
  in Figure 2. The part’s low power consumption combined with the ability to go into sleep mode after a
  09/02/294 1000 100 SUPPLY CURRENT (ВµA) Introduction
  The demand for ever smaller portable devices is increasing. In addition, there is a corresponding demand for …

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  100MHz Op Amp Features Low Noise Rail-to-Rail Performance While Consuming Only 2.5mA &mdash DN308
  PDF, 88 Kb, 档案已发布: Apr 2, 2003
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  100MHz Op Amp Features Low Noise Rail-to-Rail Performance
  While Consuming Only 2.5mA – Design Note 308
  Glen Brisebois
  The new LTВ®6202 op amp combines 100MHz gainbandwidth, 1.9nV/в€љHz voltage noise and rail-to-rail
  inputs and outputs, while consuming only 2.5mA. It
  also features a low 0.75pA/в€љHz current noise, and it
  contributes exceptionally low total noise and distortion
  power in small-signal applications. The device is fully
  specified on 3V, 5V and ±5V supplies and is available in
  commercial and industrial temperature grades in both
  the SOT and SO packages. Dual and quad versions are
  also available as the LT6203 and LT6204, respectively.
  Low Power, 2.4nV/в€љHz, Photodiode AC
  Transimpedance Amplifier Outperforms
  Monolithic Solutions
  You can’t optimize for everything. Op amp designs
  that try to squeeze good JFETs into their high speed
  monolithic processes inevitably compromise other
  parameters, usually resulting in high supply currents.
  Figure 1 shows a simple way to get the best of both
  worlds using the LT6202 and a low noise discrete
  JFET. The JFET acts as a source follower, buffering the
  inverting input of the LT6202 and making it suitable for …

文章

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  Use a Single Input to Acquire Two Similar Signals Simultaneously and Other AC Techniques for the LTC1864 &mdash LT Journal
  PDF, 185 Kb, 档案已发布: Aug 9, 2004
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  DESIGN IDEAS Use a Single Input to Acquire Two
  Similar Signals Simultaneously and
  Other AC Techniques for the LTC1864
  by Derek Redmayne and Mark Thoren
  frequency relative to the band of interest will allow the use of an FIR filter
  having some combination of lower
  pass band ripple, sharper roll-off,
  better phase linearity, less delay or
  better stop-band rejection. A higher
  sample frequency allows a longer FIR
  filter for a given latency, and when the
  pass band is a small fraction of the
  Nyquist frequency, nonideal artifacts
  resulting from the use of an FIR filter
  with noncoherent frequencies are reduced.
  By using a sample frequency significantly greater than the frequency
  range of interest, it is possible to
  extend resolution beyond the resolution of the converter. DNL can be
  reduced using dither, but INL is no
  better than that of the converter.
  For example, an increase in sampling frequency from 44kHz to
  220kHz, a factor of 5 increase, results
  in improvement in signal to noise frequency range of the individual …

• 下载
  250ksps 16-Bit ADC in a Tiny MSOP Package Offers an Excellent Combination of Speed, Power and Size &mdash LT Journal
  PDF, 160 Kb, 档案已发布: Mar 1, 2002
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  DESIGN IDEAS 250ksps 16-Bit ADC in a Tiny MSOP
  Package Offers an Excellent
  Combination of Speed, Power
  by Guy Hoover
  and Size
  Introduction DESIGN IDEAS
  250ksps 16-Bit ADC in a Tiny MSOP
  Package Offers an Excellent
  Combination of Speed, Power
  and Size . 24
  Guy Hoover 1.5MHz Switching Regulator in TSOT23 Package Saves Board Space and
  Draws Only 20ВµA of Supply Current
  . 26
  Jaime Tseng A Linear Thermoelectric Cooler
  Temperature Controller for
  Fiber Optic Lasers . 28
  Jim Williams Low Output Voltage Synchronous
  Boost Regulators Extend Battery Life
  in Single Cell Applications . 29
  Mark Jordan A Composite Amplifier Topology
  Wrings More Performance Out of the
  LTC1597 16-Bit Current Output DAC
  . 30 …

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• Data Conversion > Analog-to-Digital Converters (ADC) > Precision ADCs (Fs < 10Msps) > Single Channel ADCs
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) ADCs