For more information www.linear.com/LTC2758 Table 1. Command Codes CODE COMMAND READB" />
參數(shù)資料
型號(hào): LTC2758AILX#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 5/24頁(yè)
文件大?。?/td> 0K
描述: IC DAC 18BIT SPI/SRL 48-LQFP
標(biāo)準(zhǔn)包裝: 250
系列: SoftSpan™
設(shè)置時(shí)間: 2.1µs
位數(shù): 18
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 管件
輸出數(shù)目和類(lèi)型: 2 電流,單極;4 電流,雙極
配用: DC1684A-A-ND - BOARD DAC LTC2758
LTC2758
13
2758fa
For more information www.linear.com/LTC2758
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 Interrupt
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 LTC2758
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
×
1
0
Bipolar –2.5V to 2.5V
×
1
0
1
Bipolar –2.5V to 7.5V
Codes not shown are reserved–do not use.
× = Don’t Care.
OPERATION
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