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參數(shù)資料
型號(hào)： DC873A
廠商： Linear Technology
文件頁(yè)數(shù)： 16/16頁(yè)
文件大?。?/td> 0K
描述： BOARD SAR ADC LTC1867L
軟件下載： QuikEval System
設(shè)計(jì)資源： DC873A Schematic
DC873A Design Files
標(biāo)準(zhǔn)包裝： 1
系列： QuikEval™
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 175k
數(shù)據(jù)接口： MICROWIRE?，串行，SPI?
工作溫度： 0°C ~ 70°C
已用 IC / 零件： LTC1867L
已供物品： 板
相關(guān)產(chǎn)品： LTC1867ACGN#PBF-ND - IC ADC 16BIT 8CH 200KSPS 16SSOP
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LTC1867LACGN#PBF-ND - IC ADC 16BIT 8CH 175KSPS 16SSOP
LTC1867CGN#PBF-ND - IC ADC 16BIT 8CH 200KSPS 16SSOP
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LTC1867LAIGN#PBF-ND - IC ADC 16BIT 8CH 175KSPS 16SSOP
LTC1867LCGN#PBF-ND - IC ADC 16BIT 8CH 175KSPS 16SSOP
LTC1867LACGN#TRPBF-ND - IC ADC 16BIT 8CH 175KSPS 16SSOP
更多...
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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