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參數資料
型號: LTC1863IGN#TR
廠商: Linear Technology
文件頁數: 16/16頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 8CH 200KSPS 16SSOP
標準包裝: 2,500
位數: 12
采樣率(每秒): 200k
數據接口: MICROWIRE?,串行,SPI?
轉換器數目: 1
功率耗散(最大): 9mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應商設備封裝: 16-SSOP
包裝: 帶卷 (TR)
輸入數目和類型: 8 個單端,單極;8 個單端,雙極;4 個差分,單極;4 個差分,雙極
LTC1863/LTC1867
9
18637fa
APPLICATIONS INFORMATION
Examples of Multiplexer Options
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
GND (
)
8 Single-Ended
+
4 Differential
+ ()
+
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM (
)
7 Single-Ended
to CH7/COM
+
+ ()
(+)
GND (
)
Combinations of Differential
and Single-Ended
+
{
18637 AI01
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
Analog Input Multiplexer
The analog input multiplexer is controlled by a 7-bit input
data word. The input data word is dened as follows:
SD OS S1 S0 COM UNI SLP
SD = SINGLE/DIFFERENTIAL BIT
OS = ODD/SIGN BIT
S1 = ADDRESS SELECT BIT 1
S0 = ADDRESS SELECT BIT 0
COM = CH7/COM CONFIGURATION BIT
UNI = UNIPOLAR/BIPOLAR BIT
SLP = SLEEP MODE BIT
Tables 1 and 2 show the congurations when COM = 0,
and COM = 1.
Table 1. Channel Conguration (When COM = 0, CH7/COM Pin
Is Used as CH7)
Channel Conguration
SD
OS
S1
S0
COM
“+”
“–”
00
0
CH0
CH1
00
0
1
0
CH2
CH3
00
1
0
CH4
CH5
00
1
0
CH6
CH7
01
0
CH1
CH0
01
0
1
0
CH3
CH2
01
1
0
CH5
CH4
01
1
0
CH7
CH6
10
0
CH0
GND
10
0
1
0
CH2
GND
10
1
0
CH4
GND
10
1
0
CH6
GND
11
0
CH1
GND
11
0
1
0
CH3
GND
11
1
0
CH5
GND
11
1
0
CH7
GND
Table 2. Channel Conguration (When COM = 1, CH7/COM Pin
Is Used as COMMON)
Channel Conguration
SD
OS
S1
S0
COM
“+”
“–”
10
0
1
CH0
CH7/COM
10
0
1
CH2
CH7/COM
10
1
0
1
CH4
CH7/COM
10
1
CH6
CH7/COM
11
0
1
CH1
CH7/COM
11
0
1
CH3
CH7/COM
11
1
0
1
CH5
CH7/COM
Changing the MUX Assignment “On the Fly”
CH7/COM
(UNUSED)
CH7/COM (
)
1st Conversion
2nd Conversion
+
+
+
+
{
CH2
CH3
CH4
CH5
CH2
CH3
CH4
CH5
18637 AI02
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