參數(shù)資料
      型號: AD7714YRU
      廠商: Analog Devices Inc
      文件頁數(shù): 5/40頁
      文件大?。?/td> 0K
      描述: IC ADC SIGNAL COND 3/5V 24-TSSOP
      標(biāo)準(zhǔn)包裝: 1
      位數(shù): 24
      采樣率(每秒): 1k
      數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
      轉(zhuǎn)換器數(shù)目: 1
      功率耗散(最大): 7mW
      電壓電源: 模擬和數(shù)字
      工作溫度: -40°C ~ 105°C
      安裝類型: 表面貼裝
      封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
      供應(yīng)商設(shè)備封裝: 24-TSSOP
      包裝: 管件
      輸入數(shù)目和類型: 3 個差分,單極;3 個差分,雙極;5 個偽差分,單極;5 個偽差分,雙極
      配用: EVAL-AD7714-3EBZ-ND - BOARD EVAL FOR AD7714
      2
      AD7714
      REV. C
      –13–
      BUFFERED MODE NOISE
      Table III shows the typical output rms noise and effective resolution for some typical notch and –3 dB frequencies for the AD7714-
      5 with fCLK IN = 2.4576 MHz and BUFFER = +5 V. Table IV gives the information for the AD7714-3 again with fCLK IN = 2.4576
      MHz and BUFFER = +5 V. The numbers given are for the bipolar input ranges and are generated with a differential analog input
      voltage of 0 V. For the AD7714-5, the VREF voltage is +2.5 V while for the AD7714 the VREF voltage is +1.25 V. The numbers in
      brackets in each table are for the effective resolution of the part (rounded to the nearest 0.5 LSB). The effective resolution of the
      device is defined as the ratio of the output rms noise to the input full scale (i.e., 2
      × V
      REF/GAIN). It should be noted that it is not
      calculated using peak-to-peak output noise numbers. Peak-to-peak noise numbers can be up to 6.6 times the rms numbers while
      effective resolution numbers based on peak-to-peak noise can be 2.5 bits below the effective resolution based on rms noise as quoted
      in the tables.
      Table III. AD7714-5 Buffered Mode Output Noise/Resolution for fCLK IN = 2.4576 MHz
      Filter First
      Typical Output RMS Noise in
      V (Effective Resolution in Bits)
      Notch & O/P
      –3 dB
      Gain of
      Data Rate
      Frequency
      1
      2
      4
      8
      16
      32
      64
      128
      5 Hz
      1.31 Hz
      0.99
      (22.5)
      0.68
      (22)
      0.46 (21.5) 0.26 (21)
      0.26 (20)
      0.26 (19)
      0.26 (18)
      0.26 (17)
      10 Hz
      2.62 Hz
      1.5
      (21.5)
      0.95
      (21.5)
      0.63 (21)
      0.41 (20.5) 0.39 (19.5) 0.36 (18.5) 0.36 (17.5) 0.36 (16.5)
      25 Hz
      6.55 Hz
      2.5
      (21)
      1.7
      (20.5)
      0.88 (20.5) 0.75 (19.5) 0.57 (19)
      0.57 (18)
      0.57 (17)
      0.56 (16)
      30 Hz
      7.86 Hz
      2.9
      (20.5)
      1.8
      (20.5)
      1
      (20)
      0.87 (19.5) 0.75 (18.5) 0.72 (17.5) 0.72 (16.5) 0.71 (15.5)
      50 Hz
      13.1 Hz
      4.2
      (20)
      2.5
      (20)
      1.5
      (19.5) 1.1
      (19)
      0.94 (18.5) 0.94 (17.5) 0.94 (16.5) 0.87 (15.5)
      60 Hz
      15.72 Hz
      6.1
      (19.5)
      2.9
      (19.5)
      2
      (19.5) 1.2
      (19)
      1
      (18.5) 0.97 (17.5) 0.95 (16.5) 0.94 (15.5)
      100 Hz
      26.2 Hz
      13.8
      (18.5)
      6.5
      (18.5)
      3.5
      (18.5) 2.2
      (18)
      1.3
      (18)
      1.2
      (17)
      1.3
      (16)
      1.1
      (15)
      250 Hz
      65.5 Hz
      87
      (16)
      56
      (15.5)
      25
      (15.5) 11
      (15.5) 5.7
      (15.5) 3.6
      (15.5) 2.4
      (15)
      2.1
      (14)
      500 Hz
      131 Hz
      508
      (13.5)
      241
      (13.5)
      117 (13.5) 73
      (13)
      34
      (13)
      16
      (13)
      8.5
      (13)
      5.2
      (13)
      1 kHz
      262 Hz
      2860 (11)
      1700 (10.5)
      745 (10.5) 480 (10.5) 197 (10.5) 94
      (10.5) 53
      (10.5) 23
      (10.5)
      Table IV. AD7714-3 Buffered Mode Output Noise/Resolution for fCLK IN = 2.4576 MHz
      Filter First
      Typical Output RMS Noise in
      V (Effective Resolution in Bits)
      Notch & O/P
      –3 dB
      Gain of
      Data Rate
      Frequency
      1
      2
      4
      8
      16
      32
      64
      128
      5 Hz
      1.31 Hz
      1.16
      (21)
      0.76
      (20.5)
      0.34 (20)
      0.29 (20)
      0.29 (19)
      0.28 (18)
      0.26 (17)
      0.26 (16)
      10 Hz
      2.62 Hz
      1.7
      (20.5)
      1
      (20.5)
      0.7
      (20)
      0.46 (19.5) 0.45 (18.5) 0.4
      (17.5) 0.4
      (16.5) 0.4
      (15.5)
      25 Hz
      6.55 Hz
      3.5
      (19.5)
      1.8
      (19.5)
      1.1
      (19)
      0.74 (18.5) 0.63 (18)
      0.6
      (17)
      0.6
      (16)
      0.6
      (15)
      30 Hz
      7.86 Hz
      3.7
      (19.5)
      2.2
      (19)
      1.3
      (19)
      0.76 (18.5) 0.68 (18)
      0.66 (17)
      0.66 (16)
      0.66 (15)
      50 Hz
      13.1 Hz
      4.5
      (19)
      3
      (18.5)
      1.7
      (18.5) 1.0
      (18)
      0.92 (17.5) 0.9
      (16.5) 0.89 (15.5) 0.89 (14.5)
      60 Hz
      15.72 Hz
      5.3
      (19)
      3.3
      (18.5)
      1.8
      (18.5) 1.1
      (18)
      1
      (17)
      0.96 (16.5) 0.96 (15.5) 0.96 (14.5)
      100 Hz
      26.2 Hz
      10
      (18)
      4.9
      (18)
      3.1
      (17.5) 1.5
      (17.5) 1.2
      (17)
      1.2
      (16)
      1.2
      (15)
      1.2
      (14)
      250 Hz
      65.5 Hz
      47
      (15.5)
      29
      (15.5)
      15
      (15.5) 7.5
      (15.5) 4.7
      (15)
      2.6
      (15)
      2.5
      (14)
      1.6
      (13.5)
      500 Hz
      131 Hz
      300
      (13.5)
      171
      (13)
      74
      (13)
      35
      (13)
      21
      (13)
      8.6
      (13)
      5.6
      (13)
      3.1
      (12.5)
      1 kHz
      262 Hz
      1722 (10.5)
      735
      (10.5)
      380 (10.5) 230 (10.5) 93
      (10.5) 55
      (10.5) 30
      (10.5) 12
      (10.5)
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