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Datasheet Linear Technology LTC2645-12

Manufacturer:Linear Technology
Series:LTC2645-12

Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference

Datasheets

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    LTC2645 - Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference
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    LTC2645
    Quad 12-/10-/8-Bit PWM
    to VOUT DACs with
    10ppm/°C Reference
    Description Features No Latency PWM-to-Voltage Conversio Voltage Output Updates and Settles within 8µs
    n 100kHz to 30Hz PWM Input Frequency
    n ±2.5LSB Max INL; ±1LSB Max DNL (LTC2645-12)
    n Guaranteed Monotonic
    n Pin-Selectable Internal or External Reference
    n 2.7V to 5.5V Supply Range
    n 1.71V to 5.5V Input Voltage Range
    n Low Power: 4mA at 3V, <1µA Power-Dow Guaranteed Operation from –40°C to 125°C
    n 16-Lead MSOP Package
    n n n n n n The LTC2645 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 analog filters and buffer amplifiers.
    The LTC2645 has a full-scale output of 2.5V using the
    10ppm/°C internal reference. It can operate with an external reference, which sets the full-scale output equal to the
    external reference voltage. Each DAC enters a pin-selectable ...

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Packaging

Parametrics

 LTC2645CMS-L12#PBFLTC2645CMS-L12#TRPBFLTC2645HMS-L12#PBFLTC2645HMS-L12#TRPBFLTC2645IMS-L12#PBFLTC2645IMS-L12#TRPBF
Bits, bits121212121212
DAC INL, LSB111111
DACs444444
DNL, LSB111111
Demo BoardsDC2197A-ADC2197A-ADC2197A-ADC2197A-ADC2197A-ADC2197A-A
Export Control, yes/nonononononono
Ext Vref Range1V to VCC1V to VCC1V to VCC1V to VCC1V to VCC1V to VCC
Glitch Impulse, nV•s2.12.12.12.12.12.1
I/OPWMPWMPWMPWMPWMPWM
Int Ref, V2.52.52.52.52.52.5
Max Gain Error, % FSR0.80.80.80.80.80.8
Max Offset Error, mV555555
Operating Temperature Range, °C0 to 700 to 70-40 to 125-40 to 125-40 to 85-40 to 85
OutputVoltageVoltageVoltageVoltageVoltageVoltage
Output Range0V to 2.5V, 0V to VREF0V to 2.5V, 0V to VREF0V to 2.5V, 0V to VREF0V to 2.5V, 0V to VREF0V to 2.5V, 0V to VREF0V to 2.5V, 0V to VREF
Power, mW121212121212
Power-On-ResetHI-Z, Zero-ScaleHI-Z, Zero-ScaleHI-Z, Zero-ScaleHI-Z, Zero-ScaleHI-Z, Zero-ScaleHI-Z, Zero-Scale
Settling Time, µs7.87.87.87.87.87.8
Supply Voltage Range2.7V to 5.5V2.7V to 5.5V2.7V to 5.5V2.7V to 5.5V2.7V to 5.5V2.7V to 5.5V

Eco Plan

Manufacturer's Classification

  • Data Conversion > Digital-to-Analog Converters (DAC) > Special Function DACs | Voltage Output DACs | Unipolar Digital-to-Analog Converters (DAC)
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) DACs

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