参数资料
型号: AD9148BBPZ
厂商: Analog Devices Inc
文件页数: 29/72页
文件大小: 0K
描述: IC DAC 16BIT SPI/SRL 196BGA
标准包装: 1
系列: TxDAC+®
设置时间: 20ns
位数: 16
数据接口: 串行,SPI?
转换器数目: 4
电压电源: 单电源
功率耗散(最大): 2.67W
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 196-LFBGA 裸露焊盘
供应商设备封装: 196-BGA
包装: 托盘
输出数目和类型: 4 电流,单极
采样率(每秒): 1G
Data Sheet
AD9148
Rev. B | Page 35 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
IDAC FSC Adj
30
7:0
IDAC FSC Adj
IDAC full-scale current adjustment (LSB part). IDAC FS Adj[9:0]
sets the full-scale current of the IDAC. The full-scale current
can be adjusted from 8.64 mA to 31.6 mA in step sizes of
approximately 22.5 A.
F9
0x000 = 8.64 mA.
...
0x200 = 20.14 mA.
0x3FF = 31.66 mA.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
IDAC Control
31
7
IDAC sleep
I DAC sleep mode (fast wake-up mode).
0
1:0
IDAC FSC Adj[9:8]
IDAC full-scale current adjustment (MSB part)
01
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
Aux IDAC Data
32
7:0
AUX IDAC Data
Auxiliary IDAC data (LSB part). AUX IDAC Data[9:0] sets the
magnitude of the aux DAC current. The range is 0 mA to
2 mA, and the step size is 2 A.
00
0x000 = 0.000 mA.
0x001 = 0x002 mA.
0x3FF = 2.046 mA.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
Aux IDAC Control
33
7
AUX IDAC sign
Auxiliary IDAC output sign.
0
0 = positive, current is directed to the AUXx_P pin.
1 = negative, current is directed to the AUXx_N pin.
6
AUX IDAC
current direction
Auxiliary IDAC current direction.
0
0 = source.
1 = sink.
5
AUX IDAC
power-down
Auxiliary IDAC power-down.
0
1:0
AUX IDAC Data[9:8]
Auxiliary IDAC data (MSB part).
00
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select =1 to configure DAC 3 path.
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