參數(shù)資料
型號: LTC1290CISW#TR
廠商: Linear Technology
文件頁數(shù): 3/32頁
文件大?。?/td> 0K
描述: IC DATA ACQ SYS 12BIT 5V 20SOIC
標準包裝: 1,000
類型: 數(shù)據(jù)采集系統(tǒng)(DAS),ADC
分辨率(位): 12 b
采樣率(每秒): 50k
數(shù)據(jù)接口: 串行,并聯(lián)
電壓電源: 雙 ±
電源電壓: ±5 V,5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 20-SOIC
包裝: 帶卷 (TR)
11
LTC1290
1290fe
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
MUX 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
MUX ADDRESS
DIFFERENTIAL CHANNEL SELECTION
Table 1. Multiplexer Channel Selection
MUX ADDRESS
SGL/
DIFF
SELECT
1
0
ODD
SIGN
10
0
+
10
0
1
+
10
1
0
+
10
1
+
11
0
+
11
0
1
+
11
1
0
+
11
1
+
SGL/
DIFF
ODD
SIGN
SELECT
1
0
00
0
+
00
0
1
+
00
1
0
+
00
1
+
01
0
+
01
0
1
+
01
1
0
+
01
1
+
0
1
23
4
56
7
0
1
2
3
4
5
6
7
COM
SINGLE-ENDED CHANNEL SELECTION
mode (SGL/DIFF = 0) 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. Examples of Multiplexer Options on the LTC1290
0
1
2
3
4
5
6
7
CHANNEL
COM (
)
8 Single-Ended
+
0,1
CHANNEL
4 Differential
2,3
4,5
6,7
+ ()
+
+ ()
(+)
4
5
6
7
CHANNEL
COM (
)
Combinations of Differential and Single-Ended
+
0,1
2,3
COM (UNUSED)
Changing the MUX Assignment “On the Fly”
COM (
)
4,5
6,7
5,4
1ST CONVERSION
2ND CONVERSION
+
+
+
+
7
6
{
LTC1290 F01
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