参数资料
型号: AD9148BBPZRL
厂商: Analog Devices Inc
文件页数: 30/72页
文件大小: 0K
描述: IC DAC 16BIT SPI/SRL 196BGA
标准包装: 1,500
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: 带卷 (TR)
输出数目和类型: 4 电流,单极
采样率(每秒): 1G
AD9148
Data Sheet
Rev. B | Page 36 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
QDAC FSC Adj
34
7:0
QDAC FSC Adj
Q DAC full-scale current adjustment (LSB part). QDAC FS
Adj[9:0] sets the full-scale current of the QDAC. 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 = 20.14mA
0x3FF = 31.66 mA
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
QDAC Control
35
7
QDAC sleep
Q DAC sleep mode (fast wake-up mode).
0
1:0
QDAC FSC Adj[9:8]
QDAC full-scale current adjustment (MSB part).
01
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Aux QDAC Data
36
7:0
AUX QDAC Data
Auxiliary QDAC data (LSB part). AUX QDAC 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 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Aux QDAC Control
37
7
AUX QDAC sign
Auxiliary QDAC 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 QDAC
current direction
Auxiliary QDAC current direction.
0
0 = source.
1 = sink.
5
AUX QDAC
power-down
Auxiliary QDAC power-down.
0
1:0
AUX QDAC
Data[9:8]
Auxiliary QDAC data (MSB part).
00
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
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