參數(shù)資料
型號: LTC2752BILX#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: DAC
英文描述: 16-BIT DAC, PQFP48
封裝: 7 X 7 MM, LEAD FREE, PLASTIC, MS-026, LQFP-48
文件頁數(shù): 9/24頁
文件大小: 360K
代理商: LTC2752BILX#PBF
LTC2752
2752f
operaTion
Table 1. Command Codes
CODE
COMMAND
READBACK POINTER–
CURRENT INPUT WORD W0
READBACK POINTER–
NEXT INPUT WORD W+1
C3
C2
C1
C0
0
1
0
Write Span DAC n
Set by Previous Command
Input Span Register DAC n
0
1
Write Code DAC n
Set by Previous Command
Input Code Register DAC n
0
1
0
Update DAC n
Set by Previous Command
DAC Span Register DAC n
0
1
0
1
Update All DACs
Set by Previous Command
DAC Code Register DAC n
0
1
0
Write Span DAC n
Update DAC n
Set by Previous Command
DAC Span Register DAC n
0
1
Write Code DAC n
Update DAC n
Set by Previous Command
DAC Code Register DAC n
1
0
Write Span DAC n
Update All DACs
Set by Previous Command
DAC Span Register DAC n
1
0
1
Write Code DAC n
Update All DACs
Set by Previous Command
DAC Code Register DAC n
1
0
1
0
Read Input Span Register DAC n
Input Span Register DAC n
1
0
1
Read Input Code Register DAC n
Input Code Register DAC n
1
0
Read DAC Span Register DAC n
DAC Span Register DAC n
1
0
1
Read DAC Code Register DAC n
DAC Code Register DAC n
1
No Operation
Set by Previous Command
DAC Code Register DAC n
System Clear
DAC Span Register DAC A
Initial Power-Up or Power Interupt
DAC Span Register DAC A
Codes not shown are reserved–do not use
Table 2. Address Codes
A3
A2
A1
A0
n
0
×
DAC A
0
1
×
DAC B
1
×
All DACs (Note 1)
Codes not shown are reserved–do not use.
× = Don’t Care.
Note 1. If readback is taken using the All DACs address, the LTC2752
defaults to DAC A.
Table 3. Span Codes
S3 S2 S1 S0 SPAN
0
Unipolar 0V to 5V
0
1
Unipolar 0V to 10V
0
1
0
Bipolar –5V to 5V
0
1
Bipolar –10V to 10V
0
1
0
Bipolar –2.5V to 2.5V
0
1
0
1
Bipolar –2.5V to 7.5V
Codes not shown are reserved–do not use
SDI
SRO
...
WRITE CODE
DAC A
READ
CODE INPUT
REGISTER DAC A
WRITE CODE
DAC B
READ
CODE INPUT
REGISTER DAC B
WRITE SPAN
DAC C
READ
SPAN INPUT
REGISTER DAC A
WRITE SPAN
DAC B
READ
SPAN INPUT
REGISTER DAC B
UPDATE
ALL DACs
READ
CODE DAC
REGISTER DAC A
...
2754 F04
Figure 4. Rolling Readback
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