• <li id="io0ds"></li>
  • <table id="io0ds"><dl id="io0ds"><xmp id="io0ds"><rt id="io0ds"></rt>
  • 參數(shù)資料
    型號: AD7564AR-B
    廠商: Analog Devices Inc
    文件頁數(shù): 7/17頁
    文件大?。?/td> 0K
    描述: IC DAC 12BIT QUAD 3.3V LP 28SOIC
    產(chǎn)品培訓模塊: Data Converter Fundamentals
    DAC Architectures
    標準包裝: 27
    設置時間: 500ns
    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
    功率耗散(最大): 50µW
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
    供應商設備封裝: 28-SOIC W
    包裝: 管件
    輸出數(shù)目和類型: 8 電流,單極;8 電流,雙極
    采樣率(每秒): 1.8M
    –15–
    REV.
    3
    AD7564
    APPLICATIONS
    Programmable State Variable Filter
    The AD7564 with its multiplying capability and fast settling
    time is ideal for many types of signal conditioning applications.
    The circuit of Figure 25 shows its use in a state variable filter
    design. This type of filter has three outputs: low pass, high pass
    and bandpass. The particular version shown in Figure 25 uses
    the AD7564 to control the critical parameters fO, Q and AO. In-
    stead of several fixed resistors, the circuit uses the DAC equiva-
    lent resistances as circuit elements.
    Thus, R1 in Figure 25 is controlled by the 12-bit digital word
    loaded to DAC A of the AD7564. This is also the case with R2,
    R3 and R4. The fixed resistor R5 is the feedback resistor, RFBB.
    DAC Equivalent Resistance, REQ = (RLADDER
    × 4096)/N
    where: RLADDER is the DAC ladder resistance
    N is the DAC Digital Code in Decimal (0 < N < 4096)
    In the circuit of Figure 25:
    C1 = C2, R7 = R8, R3 = R4 (i.e., the same code is loaded to
    each DAC).
    Resonant Frequency, fO = 1/(2 π R3C1)
    Quality Factor, Q = (R6/R8)
    × (R2/R5)
    Bandpass Gain, AO = –R2/R1
    Using the values shown in Figure 25, the Q range is 0.3 to 5 and
    the fO range is 0 to 12 kHz.
    R8
    30k
    HIGH
    PASS
    OUTPUT
    C1 1000pF
    C2 1000pF
    LOW
    PASS
    OUTPUT
    A2
    A3
    A4
    A1
    C3 10pF
    BAND
    PASS
    OUTPUT
    R6
    10k
    VIN
    VREFA
    IOUT1AIOUT1BRFBBVREFCIOUT1CVREFDIOUT1D
    VREFB
    AD7564
    IOUT2AIOUT2BIOUT2CIOUT2D
    DAC B
    (R2)
    DAC C
    (R3)
    DAC D
    (R4)
    R7
    30k
    R5
    DAC A
    (R1)
    AGND
    NOTES
    1. A1, A2, A3, A4, : 1/4 X AD713.
    2. DIGITAL INPUT CONNECTIONS ARE OMITTED.
    3. C3 IS A COMPENSATION CAPACITOR TO ELIMINATE Q AND GAIN VARIATIONS
    CAUSED BY AMPLIFIER GAIN AND BANDWIDTH LIMITATIONS.
    Figure 25. Programmable 2nd Order State Variable Filter
    B
    相關PDF資料
    PDF描述
    VI-B63-MU CONVERTER MOD DC/DC 24V 200W
    AD7564BR IC DAC 12BIT LC2MOS QUAD 28-SOIC
    VE-23X-IV-F2 CONVERTER MOD DC/DC 5.2V 150W
    VE-B6P-MU CONVERTER MOD DC/DC 13.8V 200W
    VI-B62-MU CONVERTER MOD DC/DC 15V 200W
    相關代理商/技術參數(shù)
    參數(shù)描述
    AD7564AR-BREEL 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 12-bit 28-Pin SOIC W T/R 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 12-BIT 28SOIC W - Tape and Reel
    AD7564ARS-B 功能描述:IC DAC 12BIT QUAD 3.3V LP 28SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應商設備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k
    AD7564ARS-BREEL 功能描述:IC DAC 12BIT QUAD 3.3V LP 28SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應商設備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k
    AD7564ARSZ-B 功能描述:IC DAC 12BIT QUAD 3.3V LP 28SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 設置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行,SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散(最大):- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 供應商設備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND
    AD7564ARSZ-BREEL 功能描述:IC DAC 12BIT QUAD 3.3V LP 28SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應商設備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k