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Datasheet Linear Technology LTC2645CMS-L12#TRPBF

ПроизводительLinear Technology
СерияLTC2645-8
МодельLTC2645CMS-L12#TRPBF

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

Datasheets

  • Скачать » Datasheet, PDF, 771 Кб, Версия: A, Файл закачен 22-08-2017
    LTC2645 - Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference
    Выписка из документа ↓
    LTC2645
    Quad 12-/10-/8-Bit PWM
    to VOUT DACs with
    10ppm/В°C Reference
    Description Features No Latency PWM-to-Voltage Conversio Voltage Output Updates and Settles within 8Вµs
    n 100kHz to 30Hz PWM Input Frequency
    n В±2.5LSB Max INL; В±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, 1GО©). 50О© 1mA, or 50mV). See the graph Headroom at Rails
    vs Output Current in the Typical Performance Characteristics section. Normal operating current resumes when PD returns high
    for transparent operation (IDLSEL = GND). For sample/
    hold operation (IDLSEL = VCC), the LTC2645 remains
    in full power-down until the first rising edge is received
    on any PWM input. Any pair of PWM input rising edges
    separated by less than the idle mode timeout delay t3
    (50ms minimum) will cause the DAC code to be updated.
    The DAC output(s) will remain in Hi-Z until the channel
    is updated following the second rising PWM input edge. Since the analog output of the DAC cannot go below
    ground, it may limit the lowest codes reachable as shown
    in Figure 2b. Similarly, limiting can occur near full-scale ...

Цены

Корпус / Упаковка / Маркировка

КорпусMS-16
Код корпусаMS
Индекс корпуса05-08-1669

Параметры

Bits8 bits
DAC INL0.05 LSB
DACs4
DNL0.5 LSB
Demo BoardsDC2197A-A
Экспортный контрольнет
Ext Vref Range1V to VCC
Glitch Impulse2.1 nV•s
I/OPWM
Int Ref2.5 В
Max Gain Error0.8 % FSR
Max Offset Error5 мВ
Рабочий диапазон температурот 0 до 70 °C
OutputVoltage
Output Range0V to 2.5V, 0V to VREF
Power12 mW
Power-On-ResetHI-Z, Zero-Scale
Время установления7 µs
Диапазон напряжения питания2.7V to 5.5V

Экологический статус

RoHSСовместим

Другие варианты исполнения

LTC2645-10 LTC2645-12

Design Notes

  • Скачать » Design Notes - DN538, PDF, 191 Кб, 17-03-2015
    Accurate, Fast Settling Analog Voltages from Digital PWM Signals
    Выписка из документа ↓
    Accurate, Fast Settling Analog Voltages from Digital PWM
    Signals
    Design Note 538
    Mark Thoren and Chad Steward
    Introduction
    Pulse width modulation (PWM) is a common technique
    for generating analog voltages from a digital device such
    as a microcontroller or FPGA. Most microcontrollers have
    dedicated PWM generation peripherals built in, and it only
    takes a few lines of RTL code to generate a PWM signal
    from an FPGA. This is a simple, practical technique if
    the analog signal’s performance requirements are not
    too stringent, as only one output pin is required and the
    code overhead is very low when compared to a digitalto-analog converter (DAC) with an SPI or I2C interface.
    FigureВ 1 shows a typical application, with a digital output
    pin that is filtered to produce an analog voltage.
    20MHz
    CLOCK 12-BIT
    PWM
    ВµC 5kHz
    PWM at a constant value, which may present a problem if the
    processor is to be put into a low power shutdown state.
    PWM-to-Analog Improved? ...

Модельный ряд

Серия: LTC2645-8 (18)

Классификация производителя

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

Варианты написания:

LTC2645CMS-L12TRPBF, LTC2645CMS-L12 TRPBF, LTC2645CMSL12#TRPBF, LTC2645CMS L12#TRPBF

На английском языке: Datasheet Linear Technology LTC2645CMS-L12#TRPBF

Срезы ↓
Источник питания Актаком APS-1303
Источник питания Актаком APS-1303
2 LED дисплея, 0…30 В, 0…3 А
Цена: от 5 900 руб.
Доставка: Россия и страны СНГ
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Светодиод KPA-2106QWF-D
Светодиод белый, 350 мКд
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Для отключения однофазной нагрузки 220 В, 50 Гц при недопустимых колебаниях.
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