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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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LCZM Fiches technique(PDF) 10 Page - Linear Technology |
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LCZM Fiches technique(HTML) 10 Page - Linear Technology |
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10 / 20 page  LTC2641/LTC2642 10 26412f BLOCK DIAGRAMS 16-BIT DATA LATCH CONTROL LOGIC 16-/14-/12-BIT DAC VDD REF VOUT GND 2641 BD 16-BIT SHIFT REGISTER POWER-ON RESET LTC2641-16 LTC2641-14 LTC2641-12 CS SCLK DIN CLR 6 8 5 4 3 2 1 7 16-BIT DATA LATCH CONTROL LOGIC 16-/14-/12-BIT DAC INV RFB VDD REF VOUT GND 2642 BD 16-BIT SHIFT REGISTER POWER-ON RESET LTC2642-16 LTC2642-14 LTC2642-12 CS SCLK DIN CLR 8 7 6 10 5 4 3 2 1 9 LTC2641 LTC2642 TIMING DIAGRAM t1 SCK SDI CS/LD t5 t7 t2 t6 t8 26412 TD 12 3 15 16 t3 t4 OPERATION General Description The LTC2641/LTC2642 family of 16-/14-/12-bit voltage output DACs offer full 16-bit performance with less than ±2LSB integral linearity error and less than ±1LSB differen- tial linearity error, guaranteeing monotonic operation. They operate from a single supply ranging from 2.7V to 5.5V, consuming 120μA (typical). An external voltage reference of 2V to VDD determines the DAC’s full-scale output volt- age. A 3-wire serial interface allows the LTC2641/LTC2642 to fit into a small 8-/10-pin MSOP or DFN 3mm × 3mm package. Digital-to-Analog Architecture The DAC architecture is a voltage switching mode resis- tor ladder using precision thin-film resistors and CMOS switches. The LTC2641/LTC2642 DAC resistor ladders are composed of a proprietary arrangement of matched DAC sections. The four MSBs are decoded to drive 15 equally weighted segments, and the remaining lower bits drive successively lower weighted sections. Major carry glitch impulse is very low at 500pV•sec, CL = 10pF, ten times lower than previous DACs of this type. |
Numéro de pièce similaire - LCZM |
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Description similaire - LCZM |
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