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ANALOG DEVICES LTC2644CMS-L12#PBF

Digital to Analogue Converter, 12 bit, 2.7V to 5.5V, MSOP, 12 Pins

ANALOG DEVICES LTC2644CMS-L12#PBF
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Manufacturer Part No:
LTC2644CMS-L12#PBF
Order Code:
4018168
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Product Overview

LTC®2644 is a dual PWM-to-voltage output DAC with an integrated high accuracy, low drift, 10ppm/°C reference. It has rail-to-rail output buffers and is guaranteed monotonic. It measures the period and pulse width of the PWM input signals and updates the voltage output DACs after each corresponding PWM input rising edge. The DAC outputs update and settle to 12-bit accuracy within 8µs typically and are capable of sourcing and sinking up to 5mA (3V) or 10mA (5V), eliminating voltage ripple and replacing slow analogue filters and buffer amplifiers. It can operate with an external reference, which sets the full-scale output equal to the external reference voltage. DAC enters a pin-selectable idle state when the PWM input is held unchanged for more than 60ms. Typical applications are digital calibration, trimming and adjustment, level setting, process control and industrial automation, instrumentation, automotive.
  • No latency PWM-to-voltage conversion
  • Voltage output updates and settles within 8µs
  • Guaranteed monotonic, pin-selectable internal or external reference
  • Commercial temperature range from 0°C to 70°C
  • 12-lead MSOP package
  • 2.5V full scale voltage (internal reference mode)
  • Resolution is 12bit
  • ±2.5LSB maximum INL
  • Positive supply voltage is 2.7 to 5.5V
  • Output voltage is 1.24 to 1.26V at TA = 25°C. VCC = 2.7V to 5.5V

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Technical Documents (1)

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