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      參數(shù)資料
      

      


      


      
型號：
TLC3548CDW

      

      
廠商：
TEXAS INSTRUMENTS INC

      

      
元件分類：
ADC

      

      
英文描述：
8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24

      

      
封裝：
GREEN, PLASTIC, SOIC-24

      

      
文件頁數(shù)：
10/44頁

      

      
文件大?。?/td>
1000K

      

      
代理商：
TLC3548CDW


      

      

      

	
      
    
    

    
      
	
      TLC3544, TLC3548
      5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL
      ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
      SLAS266C – OCTOBER 2000 – REVISED MAY 2003
      18
      POST OFFICE BOX 655303
       DALLAS, TEXAS 75265
      detailed description (continued)
      command period
      After the rising edge of FS (FS triggers the operation) or the falling edge of CS (CS triggers the operation), SDI,
      SDO, and SCLK are enabled. The first four SCLK clocks form the command period. The four MSBs of input data,
      ID[15:12], are shifted in and decoded. These bits represent one of the 4-bit commands from the host, which
      defines the required operation (see Table 1, Command Set). The four MSBs of output, OD[15:12], are also
      shifted out via SDO during this period.
      The commands are SELECT/CONVERSION, WRITE CFR, FIFO READ, SW POWER DOWN, and
      HARDWARE DEFAULT mode. The SELECT/CONVERSION command includes SELECT ANALOG INPUT
      and SELECT TEST commands. All cause a select/conversion operation. They select the analog signal being
      converted, and start the sampling/conversion process after the selection. WRITE CFR causes the configuration
      operation, which writes the device configuration information into the CFR register. FIFO READ reads the
      contents in the FIFO. SW POWER DOWN puts the device into software power-down mode to save power.
      Hardware default mode sets the device into the hardware default mode.
      After the command period, the remaining 12 bits of SDI are written into the CFR register to configure the device
      if the command is WRITE CFR. Otherwise, these bits are ignored. The configuration is retained in the
      autopower-down and software power-down state. If SCLK stops (while CS remains low) after the first eight bits
      are entered, the next eight bits can be entered after SCLK resumes. The data on SDI are ignored after the 4-bit
      counter counts to 16 (falling edge of SCLK) or the low-to-high transition of CS, whichever happens first.
      The remaining 12 bits of output data are shifted out from SDO if the command is SELECT/CONVERSION or
      FIFO READ. Otherwise, the data on SDO are ignored. In any case, SDO goes into a high-impedance state after
      the 4-bit counter counts to 16 (falling edge of SCLK) or the low-to-high transition of CS, whichever happens first.
      Table 1. Command Set (CMR)
      SDI Bit D[15:12]
      TLC3548 COMMAND
      TLC3544 COMMAND
      BINARY
      HEX
      TLC3548 COMMAND
      TLC3544 COMMAND
      0000b
      0h
      SELECT analog input channel 0
      0001b
      1h
      SELECT analog input channel 1
      0010b
      2h
      SELECT analog input channel 2
      0011b
      3h
      SELECT analog input channel 3
      0100b
      4h
      SELECT analog input channel 4
      SELECT analog input channel 0
      0101b
      5h
      SELECT analog input channel 5
      SELECT analog input channel 1
      0110b
      6h
      SELECT analog input channel 6
      SELECT analog input channel 2
      0111b
      7h
      SELECT analog input channel 7
      SELECT analog input channel 3
      1000b
      8h
      SW POWER DOWN
      1001b
      9h
      Reserved (test)
      1010b
      Ah
      WRITE CFR, the last 12 bits of SDI are written into CFR. This command resets FIFO.
      1011b
      Bh
      SELECT TEST, voltage = (REFP+REFM)/2 (see Notes 9 and 10)
      1100b
      Ch
      SELECT TEST, voltage = REFM (see Note 11)
      1101b
      Dh
      SELECT TEST, voltage = REFP (see Note 12)
      1110b
      Eh
      FIFO READ, FIFO contents is shown on SDO; OD[15:2] = result, OD[1:0] = xx
      1111b
      Fh
      Hardware default mode, CFR is loaded with 800h
      NOTES:
      9. REFP is external reference if external reference is selected, or internal reference if internal reference
      is programmed.
      10. The output code = mid-scale code + zero offset error + gain error.
      11. The output code = zero scale code + zero offset error.
      12. The output code = full-scale code + gain error.
      
    
      
    
    
      


      


      

      相關(guān)PDF資料
      		

      PDF描述
      		

      
      

      
TLC3548CDWRG4
8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24

      

      
TLC3544CPWRG4
4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20

      

      
TLC4541IDGK
1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8

      

      
TLC4541IDG4
1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8

      

      
TLC4545ID
1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8

      

      

      

      


      


      

      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
TLC3548CDWG4
功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-bit 5V 200KSPS 8-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32

      

      
TLC3548CDWR
功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-bit 5V 200KSPS 8-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32

      

      
TLC3548CDWRG4
功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-bit 5V 200KSPS 8-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32

      

      
TLC3548CPW
功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-bit 5V 200KSPS 8-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32

      

      
TLC3548CPWG4
功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-bit 5V 200KSPS 8-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32

      

      
    
    
    
	
      	
    
    
     
     
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