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參數(shù)資料
| 型號： | AD5755ACPZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 26/52頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT QUAD 64-LFCSP |
| 視頻文件： | AD5755: 16-Bit Multi-Channel, Voltage and Current Output DAC |
| 特色產(chǎn)品： | AD5755 / AD5755-1 / AD5757 DACs |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 設(shè)置時(shí)間： | 11µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸出數(shù)目和類型： | 4 電流，4 電壓 |
| 采樣率（每秒）： | * |
| 其它名稱： | AD5755ACPZ-REEL7DKR |
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AD5755
Data Sheet
Rev. C | Page 32 of 52
PROGRAMMING SEQUENCE TO WRITE/ENABLE
THE OUTPUT CORRECTLY
To correctly write to and set up the part from a power-on
condition, use the following sequence:
1. Perform a hardware or software reset after initial power-on.
2. The dc-to-dc converter supply block must be configured.
Set the dc-to-dc switching frequency, maximum output
voltage allowed, and the phase that the four dc-to-dc
channels clock at.
3. Configure the DAC control register on a per channel basis.
The output range is selected, and the dc-to-dc converter
block is enabled (DC_DC bit). Other control bits can be
configured at this point. Set the INT_ENABLE bit; however,
the output enable bit (OUTEN) should not be set.
4. Write the required code to the DAC data register. This
implements a full DAC calibration internally. Allow at least
200 s before Step 5 for reduced output glitch.
5. Write to the DAC control register again to enable the
output (set the OUTEN bit).
A flowchart of this sequence is shown in Figure 74.
07304-
073
POWER ON.
STEP 1: PERFORM A SOFTWARE/HARDWARE RESET.
STEP 4: WRITE TO EACH/ALL DAC DATA REGISTERS.
ALLOW AT LEAST 200s BETWEEN STEP 3
AND STEP 5 FOR REDUCED OUTPUT GLITCH.
STEP 2: WRITE TO DC-TO-DC CONTROL REGISTER TO
SET DC-TO-DC CLOCK FREQUENCY, PHASE,
AND MAXIMUM VOLTAGE.
STEP 3: WRITE TO DAC CONTROL REGISTER. SELECT
THE DAC CHANNEL AND OUTPUT RANGE.
SET THE DC_DC BIT AND OTHER CONTROL
BITS AS REQUIRED. SET THE INT_ENABLE BIT
BUT DO NOT SELECT THE OUTEN BIT.
STEP 5: WRITE TO DAC CONTROL REGISTER. RELOAD
SEQUENCE AS IN STEP 3 ABOVE. THIS TIME
SELECT THE OUTEN BIT TO ENABLE
THE OUTPUT.
Figure 74. Programming Sequence for Enabling the Output Correctly
CHANGING AND REPROGRAMMING THE RANGE
When changing between ranges, the same sequence as
described in the Programming Sequence to Write/Enable the
Output Correctly section should be used. It is recommended to
set the range to its zero point (can be midscale or zero scale)
prior to disabling the output. Because the dc-to-dc switching
frequency, maximum voltage, and phase have already been
selected, there is no need to reprogram these. A flowchart of
this sequence is shown in Figure 75.
CHANNEL’S OUTPUT IS ENABLED.
STEP 3: WRITE VALUE TO THE DAC DATA REGISTER.
STEP 1: WRITE TO CHANNEL’S DAC DATA
REGISTER. SET THE OUTPUT
TO 0V (ZERO OR MIDSCALE).
STEP 2: WRITE TO DAC CONTROL REGISTER.
DISABLE THE OUTPUT (OUTEN = 0), AND
SET THE NEW OUTPUT RANGE. KEEP THE
DC_DC BIT AND THE INT_ENABLE BIT SET.
STEP 4: WRITE TO DAC CONTROL REGISTER.
RELOAD SEQUENCE AS IN STEP 2 ABOVE.
THIS TIME SELECT THE OUTEN BIT TO
ENABLE THE OUTPUT.
07304-
074
Figure 75. Steps for Changing the Output Range
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5755BCPZ | 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:DAC QUAD 16BIT -26.4/33VIN 64LFCSP 制造商:Analog Devices 功能描述:DAC, QUAD, 16BIT, -26.4/33VIN, 64LFCSP 制造商:Analog Devices 功能描述:DAC, QUAD, 16BIT, -26.4/33VIN, 64LFCSP, Resolution (Bits):16bit, Input Channel Type:Serial, Digital IC Case Style:LFCSP, No. of Pins:64, Data Interface:Microwire, QSPI, SPI, Supply Current:8.6mA, Operating Temperature Min:-40C, , RoHS Compliant: Yes |
| AD5755BCPZ-REEL7 | 功能描述:IC DAC 16BIT QUAD 64-LFCSP 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(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)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(yīng)商設(shè)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 |
| AD5755BCPZX | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit, Serial Input, 4-20mA & Voltage Output DAC, Dynamic Power Control |
| AD5757 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit,Serial Input, 4 mA to 20 mA Output DAC, Dynamic Power Control |
| AD5757_11 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit,Serial Input, 4 mA to 20 mA Output DAC, Dynamic Power Control |
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