參數(shù)資料
    型號(hào): MAX5253BCPP+
    廠商: Maxim Integrated Products
    文件頁(yè)數(shù): 5/16頁(yè)
    文件大?。?/td> 0K
    描述: IC DAC 12BIT QUAD 3V 20-DIP
    產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
    Obsolescence Mitigation Program
    標(biāo)準(zhǔn)包裝: 18
    設(shè)置時(shí)間: 16µs
    位數(shù): 12
    數(shù)據(jù)接口: 串行
    轉(zhuǎn)換器數(shù)目: 4
    電壓電源: 單電源
    工作溫度: 0°C ~ 70°C
    安裝類(lèi)型: 通孔
    封裝/外殼: 20-DIP(0.300",7.62mm)
    供應(yīng)商設(shè)備封裝: 20-PDIP
    包裝: 管件
    輸出數(shù)目和類(lèi)型: 4 電壓,單極;4 電壓,雙極
    采樣率(每秒): *
    __________Applications Information
    Unipolar Output
    For a unipolar output, the output voltages and the refer-
    ence inputs have the same polarity. Figure 9 shows the
    MAX5253 unipolar output circuit, which is also the typi-
    cal operating circuit. Table 2 lists the unipolar output
    codes.
    For rail-to-rail outputs, see Figure 10. This circuit shows
    the MAX5253 with the output amplifiers configured with
    a closed-loop gain of +2.6 to provide 0V to 3.25V full-
    scale range when a 1.25V reference is used.
    Bipolar Output
    The MAX5253 outputs can be configured for bipolar
    operation using Figure 11’s circuit.
    VOUT = VREF [(2NB / 4096) - 1]
    where NB is the numeric value of the DAC’s binary
    input code. Table 3 shows digital codes (offset binary)
    and corresponding output voltages for Figure 11’s
    circuit.
    MAX5253
    +3V, Quad, 12-Bit Voltage-Output DAC
    with Serial Interface
    ______________________________________________________________________________________
    13
    Table 2. Unipolar Code Table
    Table 3. Bipolar Code Table
    DAC CONTENTS
    ANALOG OUTPUT
    MSB
    LSB
    4095
    1111
    +VREF ( ——— )
    4096
    2049
    1000
    0000
    0001
    +VREF ( ——— )
    4096
    2048
    +VREF
    1000
    0000
    +VREF ( ——— ) = ————
    4096
    2
    2047
    0111
    1111
    +VREF ( ——— )
    4096
    1
    0000
    0001
    +VREF ( ——— )
    4096
    0000
    0V
    DAC CONTENTS
    ANALOG OUTPUT
    MSB
    LSB
    2047
    1111
    +VREF ( ——— )
    2048
    1
    1000
    0000
    0001
    +VREF ( ——— )
    2048
    1000
    0000
    0V
    1
    0111
    1111
    -VREF ( ——— )
    2048
    2047
    0000
    0001
    -VREF ( ——— )
    2048
    0000
    -VREF ( ——— ) = -VREF
    2048
    MAX5253
    DAC A
    DAC B
    DAC C
    DAC D
    OUTA
    FBA
    FBB
    FBC
    FBD
    OUTB
    OUTC
    OUTD
    DGND
    AGND
    REFAB
    REFCD
    REFERENCE INPUTS
    +3.3V
    VDD
    Figure 9. Unipolar Output Circuit
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