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Производитель:Linear Technology
Серия:LTC2645
Модель:LTC2645HMS-L8#TRPBF

4-канальная микросхема преобразования 12-, 10- или 8-битных сигналов ШИМ в выходное напряжение ЦАП, стабильность которого определяется источником опорного напряжения с температурным коэффициентом 10 ppm/°C

Datasheets

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    FeaTures n LTC2645 Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference DescripTion
    The LTC®2645 is a family of quad 12-, 10-, and 8-bit PWMto-voltage output DACs with an integrated high accuracy, low drift, 10ppm/°C reference in a 16-lead MSOP package. It has rail-to-rail output buffers and is guaranteed monotonic. 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 idle state when the PWM input is held unchanged for more than 60ms. The part operates from a single 2.7V to 5.5V supply and supports PWM input voltages from 1.71V to 5.5V.
    L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5396245, 5859606, 6891433, 6937178, 7414561. No Latency PWM-to-Voltage Conversion Voltage Output Updates and Settles within 8µs 100kHz to 30Hz PWM Input Frequency ±2.5LSB Max INL; ±1LSB Max DNL (LTC2645-12) Guaranteed Monotonic Pin-Selectable Internal or External Reference 2.7V to 5.5V Supply Range 1.71V to 5.5V Input Voltage Range Low Power: 4mA at 3V, <1µA Power-Down Guaranteed Operation from ­40°C to 125°C 16-Lead MSOP Package applicaTions Digital Calibration Trimming and Adjustment Level Setting Process Control and Industrial Automation Instrumentation Automotive Typical applicaTion
    4-Channel PWM to Voltage Output DAC
    PWM INPUTS INA INB INC 1.7V TO 5.5V IND IOVCC 0.1µF PD GND LTC2645 VOUTA VOUTB VOUTC VOUTD REF VCC IDLSEL REFSEL GND
    2645 TA01a PWM Input to DAC Output
    BUFFERED VOLTAGE OUTPUTS INPUT: 1V TO 5.5V OUTPUT: 1.25V INA 2V/DIV 2.7V TO 5.5V 0.1µF 0.1µF VOUTA 500mV/DIV 20µs/DIV
    TA01b 2645f For more information www.linear.com/LTC2645 1 LTC2645 absoluTe MaxiMuM raTings
    (Notes 1, 2) pin conFiguraTion
    TOP VIEW VCC 1 VOUTA 2 VOUTB 3 IDLSEL 4 INB 5 INA 6 IOVCC 7 GND 8 16 15 14 13 12 11 10 9 GND VOUTD VOUTC REFSEL REF INC IND PD Supply Voltages (VCC, IOVCC) . ­0.3V to 6V INA, INB, INC, IND . ­0.3V to 6V IDLSEL, PD, REFSEL . ­0.3V to 6V VOUTA, VOU ...

Варианты написания: LTC2645HMS-L8TRPBF, LTC2645HMS-L8 TRPBF, LTC2645HMSL8#TRPBF, LTC2645HMS L8#TRPBF

Выписка из документа:
FeaTures n LTC2645 Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference DescripTion
The LTC®2645 is a family of quad 12-, 10-, and 8-bit PWMto-voltage output DACs with an integrated high accuracy, low drift, 10ppm/°C reference in a 16-lead MSOP package. It has rail-to-rail output buffers and is guaranteed monotonic. 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 idle state when the PWM input is held unchanged for more than 60ms....

На английском языке: Datasheet Linear Technology LTC2645HMS-L8#TRPBF

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