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TLC2543-Q1
具有串行控制和 11 個(gè)模擬輸入的汽車類 12 位模數(shù)轉(zhuǎn)換器
制造商:TI
產(chǎn)品信息
描述The TLC2543 is a 12-bit, switched-capacitor, successive-approximation, analog-to-digital converters. Each device, with three control inputs [chip select (CS), the input-output clock, and the address input (DATA INPUT)], is designed for communication with the serial port of a host processor or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host. In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high to indicate that conversion is complete. The converter incorporated in the device features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range.特性Qualified for Automotive Applications 12-Bit-Resolution A/D Converter 10-μs Conversion Time Over Operating Temperature 11 Analog Input Channels Three Built-In Self-Test Modes Inherent Sample-and-Hold Function Linearity Error . . . ±1 LSB Max On-Chip System Clock End-of-Conversion Output Unipolar or Bipolar Output Operation (Signed Binary With Respect to 1/2 the Applied Voltage Reference) Programmable MSB or LSB First Programmable Power Down Programmable Output Data Length CMOS Technology Application Report AvailableMicrocontroller Based Data Acquisition Using the TLC2543 12-bit Serial-Out ADC (SLAA012)
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2020-07-04
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TLC2543的引腳功能與單片機(jī)的接口程序設(shè)計(jì)TLC2543是11個(gè)輸入端的12位模數(shù)轉(zhuǎn)換器,具有轉(zhuǎn)換快、穩(wěn)定性好、與微處理器接口簡單、價(jià)格低等優(yōu)點(diǎn),應(yīng)用前景好。由于它帶有串行外設(shè)接口(SPI,Seri-al PeripheralInterface),而51系列單片機(jī)沒有SPI,因此研究它與51單片機(jī)的接口...
2020-07-02
關(guān)于使用單片機(jī)讀取外部電壓ADC阻抗匹配的問題如TLC2543之類,其要求很低的輸入阻抗用于對內(nèi)部采樣電容快速充電。這時(shí)最好有低阻源,否則會引起誤差。實(shí)在不行,可以外部并聯(lián)一很大的電容,每次被取樣后,大電容的電壓下降不多。因此并聯(lián)外部大電容后,開關(guān)電容輸入可以等效為一個(gè)純阻性阻抗,可以被校正;
2020-11-16
TLC2543特點(diǎn)、引腳功能與使用方法介紹TLC2543是11個(gè)輸入端的12位模數(shù)轉(zhuǎn)換器,具有轉(zhuǎn)換快、穩(wěn)定性好、與微處理器接口簡單、價(jià)格低等優(yōu)點(diǎn),應(yīng)用前景好。由于它帶有串行外設(shè)接口(SPI,Seri-alPeripheralInterface),而51系列單片機(jī)沒有SPI,因此研究它與51單片機(jī)的接口...
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2017-11-22
TLC2543與51單片機(jī)接口電路圖及A/ D采集程序具有11個(gè)輸入端的12 位模數(shù)轉(zhuǎn)換器7LC2543 是美國德州儀器公司于近幾年推出的一種性能價(jià)格比較優(yōu)的12 位A/ D 轉(zhuǎn)換芯片,具有多種封裝形式,并具有民用級、工業(yè)級、軍用級產(chǎn)品。在產(chǎn)品型號、規(guī)格、封裝形式、適用范圍等方面。...
2017-11-22
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