参数资料
型号: AD5734AREZ-REEL7
厂商: Analog Devices Inc
文件页数: 17/32页
文件大小: 0K
描述: IC DAC 14BIT DSP/SRL 24TSSOP
产品培训模块: Data Converter Fundamentals
DAC Architectures
设计资源: Software Configurable 14-Bit Quad-Channel Unipolar/Bipolar Voltage Output Using AD5734 (CN0087)
标准包装: 1,000
设置时间: 10µs
位数: 14
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 4
电压电源: 模拟和数字,双 ±
功率耗散(最大): 310mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 24-TSSOP 裸露焊盘
包装: 带卷 (TR)
输出数目和类型: 4 电压,单极;4 电压,双极
采样率(每秒): 100k
AD5724/AD5734/AD5754
Rev. D | Page 24 of 32
INPUT SHIFT REGISTER
The input shift register is 24 bits wide and consists of a read/write bit (R/W), a reserved bit (zero) that must always be set to 0, three
register select bits (REG0, REG1, REG2), three DAC address bits (A2, A1, A0), and 16 data bits (data). The register data is clocked in MSB
first on the SDIN pin.
shows the register format and
describes the function of each bit in the register. All registers are
read/write registers.
Table 16. Input Register Format
MSB
LSB
DB23
DB22
DB21
DB20
DB19
DB18
DB17
DB16
DB15 to DB0
R/W
Zero
REG2
REG1
REG0
A2
A1
A0
Data
Table 17. Input Register Bit Functions
Bit Mnemonic
Description
R/W
Indicates a read from or a write to the addressed register.
REG2, REG1, REG0
Used in association with the address bits to determine if a write operation is to the DAC register, the output range
select register, the power control register, or the control register.
REG2
REG1
REG0
Function
0
DAC register
0
1
Output range select register
0
1
0
Power control register
0
1
Control register
A2, A1, A0
These DAC address bits are used to decode the DAC channels.
A2
A1
A0
Channel Address
0
DAC A
0
1
DAC B
0
1
0
DAC C
0
1
DAC D
1
0
All four DACs
DB15 to DB0
Data bits.
DAC REGISTER
The DAC register is addressed by setting the three REG bits to 000. The DAC address bits select the DAC channel where the data transfer
is to take place (see Table 17). The data bits are in positions DB15 to DB0 for the AD5754 (see Table 18), DB15 to DB2 for the AD5734
(see Table 19), and DB15 to DB4 for the AD5724 (see Table 20).
Table 18. Programming the AD5754 DAC Register
MSB
LSB
R/W
Zero
REG2
REG1
REG0
A2
A1
A0
DB15 to DB0
0
DAC address
16-bit DAC data
Table 19. Programming the AD5734 DAC Register
MSB
LSB
R/W
Zero
REG2
REG1
REG0
A2
A1
A0
DB15 to DB2
DB1
DB0
0
DAC address
14-bit DAC data
X
Table 20. Programming the AD5724 DAC Register
MSB
LSB
R/W
Zero
REG2
REG1
REG0
A2
A1
A0
DB15 to DB4
DB3
DB2
DB1
DB0
0
DAC address
12-bit DAC data
X
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