參數(shù)資料
型號(hào): LTC8143FSW#TR
廠商: Linear Technology
文件頁數(shù): 6/8頁
文件大?。?/td> 0K
描述: IC DAC 12BIT SERIAL MULTI 16SOIC
標(biāo)準(zhǔn)包裝: 1,000
設(shè)置時(shí)間: 1µs
位數(shù): 12
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
功率耗散(最大): 550µW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 2 電流,單極;2 電流,雙極
采樣率(每秒): *
6
LTC7543/LTC8143
TRUTH TABLES
Table 1. LTC7543/LTC8143 Input Register
CONTROL INPUTS
Input Register Operation
STB1 STB2 STB3 STB4
(LTC8143: SRO Operation)
0
1
0
Serial Data Bit on SRI Loaded into Input
0
1
0
Register, MSB First
0
(LTC8143: Data Bit or SRI Appears on
0
1
SRO Pin After 12 Clocked Bits)
1
X
No Input Register Operation
X
1
X
(LTC8143: No SRO Operation)
X
X0X
XXX
1
Table 2. LTC7543/LTC8143 DAC Register
CONTROL INPUTS
CLR
LD1
LD2
DAC Register Operation
0
X
Reset DAC Register to All 0s (Asynchronous
Operation; No Effect on Input Register)
1
X
No DAC Register Operation
1X
1
0
Load DAC Register with the Contents of Input
Register
TYPICAL APPLICATIONS
U
VDD VREF
LTC7543
LTC8143
RFB
AGND
DGND
3
12
10
4
7
5
6
9
8
11
2
14
13
5V
VREF
–10V TO 10V
TO NEXT DAC
FOR DAISY-CHAINING
(LTC8143)
15
16
1
OUT 1
33pF
0.1
F
VOUT
0V TO –VREF
7543/8143 TA03
OUT 2
+
LT1097
CLR
STB3
STB1
SRI
LD1
SRO (LTC8143)
LD2
STB2
STB4
P
Unipolar Operation (2-Quadrant Multiplication)
DIGITAL INPUT
BINARY NUMBER IN
ANALOG OUTPUT
DAC REGISTER
VOUT
MSB
LSB
1111
– VREF (4095/4096)
1000
0000
– VREF (2048/4096) = – VREF/2
0000
0001
– VREF (1/4096)
0000
0V
Unipolar Binary Code Table
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