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Notas de Diseño

• Descargar
  Driving Lessons for a Low Noise, Low Distortion, 16-Bit, 1Msps SAR ADC &mdash DN477
  PDF, 210 Kb, Archivo publicado: feb 11, 2010
  Extracto del documento

  Driving Lessons for a Low Noise, Low Distortion, 16-Bit,
  1Msps SAR ADC
  Design Note 477
  Guy Hoover
  Introduction
  Designing an ADC driving topology that delivers uncompromising performance is challenging, especially when
  designing around an ultralow noise SAR ADC such as the
  1Msps LTC2393-16. For both single-ended and differential
  applications, a well thought out driving topology can fully
  realize the ultralow noise and low distortion performance
  required in your data acquisition system.
  The LTC2393-16 is the first in a family of high performance
  SAR ADCs from Linear Technology that utilizes a fully differential architecture to achieve an excellent SNR of 94.2dB
  and THD of –105dB. And in order to take full advantage
  of the ADC performance, we present driving solutions
  for both single-ended and differential applications. Both
  topologies fully demonstrate the ultralow noise and low
  distortion capabilities of the LTC2393-16.
  Single-Ended to Differential Converter
  The circuit of Figure 1 converts a single-ended 0V to
  4.096V signal to a differential В±4.096V signal. This circuit
  is useful for sensors that do not produce a differential
  signal. Resistors R1, R2 and capacitor C2 limit the input …

Artículos

• Descargar
  Fast Time Division Duplex (TDD) Transmission Using an Upconverting Mixer with a High Side Switch &mdash LT Journal
  PDF, 824 Kb, Archivo publicado: jun 30, 2010
  Extracto del documento

  Driving Lessons for a Low Noise, Low Distortion,
  16-Bit, 1Msps SAR ADC
  Guy Hoover The LTC2393-16 is the first in a family of
  high performance SAR ADCs from Linear
  Technology that utilizes a fully differential architecture to achieve an excellent
  SNR of 94.2dB and THD of –105dB. In order
  to take full advantage of the ADC performance, we present driving solutions
  for both single-ended and differential
  applications. Both topologies fully
  demonstrate the ultralow noise and low
  distortion capabilities of the LTC2393-16.
  SINGLE-ENDED TO DIFFERENTIAL
  CONVERTER The circuit of Figure 1 converts a single-ended 0V to 4.096V signal to a differential В±4.096V signal. This circuit is
  useful for sensors that do not produce
  a differential signal. Resistors R1, R2
  and capacitor C2 limit the input bandwidth to approximately 100kHz. R1
  249О© AIN
  0V TO 4.096V + VCM – R3
  49.9О© IN+ C2
  2200pF
  NPO LT6350 R2
  249О© LTC2393-16
  IN– R4 …

Linea modelo

Clasificación del fabricante

• 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

Otros nombres:

LTC2393CLX-16PBF, LTC2393CLX-16 PBF, LTC2393CLX16#PBF, LTC2393CLX 16#PBF