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參數(shù)資料
| 型號： | AD5755ACPZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 24/52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 |
| 特色產品： | AD5755 / AD5755-1 / AD5757 DACs |
| 標準包裝： | 1 |
| 設置時間： | 11µs |
| 位數(shù)： | 16 |
| 數(shù)據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數(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 |
| 供應商設備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 標準包裝 |
| 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 30 of 52
Even though the output ranges are not enabled, the default
output range is 0 V to 5 V, and the clear code register is loaded
with all zeros. This means that if the user clears the part after
power-up, the output is actively driven to 0 V (if the channel
has been enabled for clear).
After device power on, or a device reset, it is recommended to
wait 100 μs or more before writing to the device to allow time
for internal calibrations to take place.
SERIAL INTERFACE
The AD5755 is controlled over a versatile 3-wire serial interface
that operates at clock rates of up to 30 MHz and is compatible
with SPI, QSPI, MICROWIRE, and DSP standards. Data coding
is always straight binary.
Input Shift Register
The input shift register is 24 bits wide. Data is loaded into the
device MSB first as a 24-bit word under the control of a serial
clock input, SCLK. Data is clocked in on the falling edge of SCLK.
If packet error checking, or PEC (see the Device Features
section), is enabled, an additional eight bits must be written to
the AD5755, creating a 32-bit serial interface.
There are two ways in which the DAC outputs can be updated:
individual updating or simultaneous updating of all DACs.
Individual DAC Updating
In this mode, LDAC is held low while data is being clocked into
the DAC data register. The addressed DAC output is updated on
the rising edge of SYNC. See Table 3 and Figure 3 for timing
information.
Simultaneous Updating of All DACs
In this mode, LDAC is held high while data is being clocked
into the DAC data register. Only the first write to each channel’s
DAC data register is valid after LDAC is brought high. Any subse-
quent writes while LDAC is still held high are ignored, though
they are loaded into the DAC data register. All the DAC outputs
are updated by taking LDAC low after SYNC is taken high.
VOUT_x
DAC
REGISTER
INTERFACE
LOGIC
OUTPUT
I/V AMPLIFIER
LDAC
SDO
SDIN
16-BIT
DAC
VREFIN
SYNC
DAC DATA
REGISTER
OFFSET
AND GAIN
CALIBRATION
DAC INPUT
REGISTER
SCLK
07304-
072
Figure 73. Simplified Serial Interface of Input Loading Circuitry
for One DAC Channel
TRANSFER FUNCTION
Table 6 shows the input code to ideal output voltage relationship
for the AD5755 for straight binary data coding of the ±10 V
output range.
Table 6. Ideal Output Voltage to Input Code Relationship
Digital Input
Straight Binary Data Coding
Analog Output
MSB
LSB
VOUT
1111
+2 VREF × (32,767/32,768)
1111
1110
+2 VREF × (32,766/32,768)
1000
0000
0 V
0000
0001
2 VREF × (32,767/32,768)
0000
2 VREF
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相關代理商/技術參數(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)據采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據接口:并聯(lián) 轉換器數(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 |
| 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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