參數(shù)資料
型號: LTC1090AM
廠商: Linear Technology Corporation
英文描述: Single Chip 10-Bit Data Acquisition System
中文描述: 單芯片10位數(shù)據(jù)采集系統(tǒng)
文件頁數(shù): 10/28頁
文件大?。?/td> 344K
代理商: LTC1090AM
10
LTC1090
1090fc
Data transfer is initiated by a falling chip select (CS) signal.
After the falling CS is recognized, an 8-bit input word
is shifted into the D
IN
input which configures the LTC1090
for the next conversion. Simultaneously, the result of the
previous conversion is output on the D
OUT
line. At the end
of the data exchange the requested conversion begins and
CS should be brought high. After t
CONV
, the conversion is
complete and the results will be available on the next data
transfer cycle. As shown below, the result of a conversion
is delayed by one CS cycle from the input word requesting
it.
2. Input Data Word
The LTC1090 8-bit input data word is clocked into the D
IN
input on the first eight rising SCLK edges after chip select
is recognized. Further inputs on the D
IN
pin are then
ignored until the next CS cycle. The eight bits of the input
word are defined as follows:
Multiplexer (MLIX) Address
The first four bits of the input word assign the MUX
configuration for the requested conversion. For a given
channel selection, the converter will measure the voltage
between the two channels indicated by the + and – signs
in the selected row of Table 1. Note that in differential
mode (SGL/DIFF = O) measurements are limited to four
adjacent input pairs with either polarity. In single ended
mode, all input channels are measured with respect to
COM. Figure 1 shows some examples of multiplexer
assignments.
Table 1. Multiplexer Channel Selection
MUX ADDRESS
SGL/
ODD SELECT
DIFF
SIGN
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
DIFFERENTIAL CHANNEL SELECTION
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
+
1
2
3
4
5
6
7
+
+
+
+
+
+
+
MUX ADDRESS
SGL/ ODD/ SELECT
DIFF
SIGN
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
SINGLE ENDED CHANNEL SELECTION
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
+
1
2
3
4
5
6
7 COM
+
+
+
+
+
+
+
APPLICATIOU
W
U
U
LTC1090 AI02
Data
Transfer
t
CONV
Conversion
D
OUT
D
IN
D
IN
Word 1
D
OUT
Word 0
t
CONV
Conversion
Data
Transfer
D
IN
Word 2
D
OUT
Word 1
D
IN
Word 3
D
OUT
Word 2
LTC1090 AI03
Data Input (D
IN
) Word:
ODD/
SIGN
SELECT
1
SELECT
0
UNI
MSBF
WL1
Word Length
MUX Address
Unipolar/
Bipolar
MSB First/
LSB First
WL0
SGL/
DIFF
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PDF描述
LTC1090AMJ Quad Precision Single Supply Low-Power Operational Amplifier 14-SOIC -40 to 85
LTC1090C Single Chip 10-Bit Data Acquisition System
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LTC1090CN#PBF 功能描述:IC DATA ACQUIS SYS 10BIT 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓模塊:Data Converter Basics 標準包裝:1 系列:- 類型:電機控制 分辨率(位):12 b 采樣率(每秒):1M 數(shù)據(jù)接口:串行,并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V,4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應商設備封裝:100-TQFP(14x14) 包裝:剪切帶 (CT) 其它名稱:296-18373-1