參數(shù)資料
    型號(hào): ADA4940-2ACPZ-RL
    廠商: Analog Devices Inc
    文件頁(yè)數(shù): 11/33頁(yè)
    文件大小: 0K
    描述: IC DIFF ADC DVR 18BIT LN 24LFCSP
    標(biāo)準(zhǔn)包裝: 5,000
    放大器類(lèi)型: 差分
    電路數(shù): 2
    輸出類(lèi)型: 差分
    轉(zhuǎn)換速率: 95 V/µs
    -3db帶寬: 260MHz
    電流 - 輸入偏壓: 1.1µA
    電壓 - 輸入偏移: 60µV
    電流 - 電源: 1.25mA
    電流 - 輸出 / 通道: 46mA
    電壓 - 電源,單路/雙路(±): 3 V ~ 7 V
    工作溫度: -40°C ~ 125°C
    安裝類(lèi)型: 表面貼裝
    封裝/外殼: 24-VFQFN 裸露焊盤(pán),CSP
    供應(yīng)商設(shè)備封裝: 24-LFCSP-VQ(4x4)
    包裝: 帶卷 (TR)
    ADA4940-1/ADA4940-2
    Data Sheet
    Rev. C | Page 18 of 32
    100
    –100
    0
    150
    OU
    TP
    U
    T
    V
    OLTA
    GE
    (
    m
    V
    )
    TIME (ns)
    –80
    –60
    –40
    –20
    0
    20
    40
    60
    80
    10 20 30 40 50 60 70 80 90 100 110 120 130 140
    VOUT, dm = 0.1V p-p
    G = 2, RL = 1kΩ
    G = 1, RL = 1kΩ
    G = 1, RL = 200Ω
    G = 2, RL = 200Ω
    08452-
    042
    Figure 49. Small Signal Transient Response for Various Gains and Loads
    (LFCSP)
    –100
    –80
    –60
    –40
    –20
    0
    20
    40
    60
    80
    100
    0
    10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
    OU
    TP
    U
    T
    V
    O
    LT
    A
    G
    E
    (m
    V)
    TIME (ns)
    VOUT, dm = 0.1V
    VS = ±1.5V
    VS = ±3.5V
    VS = ±2.5V
    08452-
    043
    Figure 50. Small Signal Transient Response for Various Supplies (LFCSP)
    100
    –100
    0
    150
    OU
    TP
    U
    T
    V
    OLTA
    GE
    (
    m
    V
    )
    TIME (ns)
    –80
    –60
    –40
    –20
    0
    20
    40
    60
    80
    10 20 30 40 50 60 70 80 90 100 110 120 130 140
    CDIFF = 0pF
    VOUT, dm = 0.1V p-p
    CCOM1 = CCOM2 = 0pF
    CCOM1 = CCOM2 = 0.5pF
    CCOM1 = CCOM2 = 1pF
    CCOM1 = CCOM2 = 2pF
    08452-
    044
    Figure 51. Small Signal Transient Response for Various Capacitive Loads
    (LFCSP)
    1.5
    1.0
    0.5
    0
    –0.5
    –1.0
    –1.5
    OU
    TP
    U
    T
    V
    OLTA
    GE
    (
    V
    )
    TIME (ns)
    VOUT, dm = 2V p-p
    G = 1, RL = 1kΩ
    G = 1, RL = 200Ω
    G = 2, RL = 1kΩ
    G = 2, RL = 200Ω
    08452-
    045
    0
    300
    20 40 60 80 100 120 140 160 180 200 220 240 260 280
    Figure 52. Large Signal Transient Response for Various Gains and Loads
    –1.5
    –1.0
    –0.5
    0
    0.5
    1.0
    1.5
    0
    20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
    OU
    TP
    U
    T
    V
    O
    LT
    A
    G
    E
    (V)
    TIME (ns)
    VOUT, dm = 2V p-p
    VS = ±3.5V
    VS = ±1.5V
    VS = ±2.5V
    08452-
    046
    Figure 53. Large Signal Transient Response for Various Supplies
    1.5
    1.0
    0.5
    0
    –0.5
    –1.0
    –1.5
    OU
    TP
    U
    T
    V
    OLTA
    GE
    (
    V
    )
    TIME (ns)
    CDIFF = 0pF
    VOUT, dm = 2V p-p
    CCOM1 = CCOM2 = 0pF
    CCOM1 = CCOM2 = 0.5pF
    CCOM1 = CCOM2 = 1pF
    CCOM1 = CCOM2 = 2pF
    08452-
    047
    0
    300
    20 40 60 80 100 120 140 160 180 200 220 240 260 280
    Figure 54. Large Signal Transient Response for Various Capacitive Loads
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