参数资料
型号: LTC1090ACN
厂商: Linear Technology
文件页数: 3/28页
文件大小: 0K
描述: IC DATA ACQUIS SYS 10BIT 20-DIP
标准包装: 18
类型: 数据采集系统(DAS),ADC
分辨率(位): 10 b
采样率(每秒): 30k
数据接口: 串行
电压电源: 单/双电源
电源电压: ±5V,5V,10V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 20-DIP(0.300",7.62mm)
供应商设备封装: 20-PDIP
包装: 管件
11
LTC1090
1090fc
4 Differential
8 Single Ended
Combinations of Differential and Single Ended
Changing the MUX Assignment “On the Fly”
Figure 1. Examples of Multiplexer Options on the LTC1090
Unipolar/Bipolar (UNI)
The fifth input bit (UNI) determines whether the conver-
sion will be unipolar or bipolar. When UNI is a logical one,
a unipolar conversion will be performed on the selected
input voltage. When UNI is a logical zero, a bipolar conver-
sion will result. The input span and code assignment for
each conversion type are shown in the figures below.
Unipolar Transfer Curve (UNI = 1)
Bipolar Transfer Curve (UNI = 0)
APPLICATIO S I FOR ATIO
WU
UU
LTC1090 AI04A
0,1
CHANNEL
2,3
4,5
6,7
+( – )
–( + )
+( – )
–( + )
+( – )
–( + )
+( – )
–( + )
LTC1090 AI04B
CHANNEL
0
1
2
3
4
5
6
7
COM ( – )
+
LTC1090 AI04C
+
0,1
CHANNEL
2,3
4
5
6
7
+
+
COM (
)
LTC1090 AI04D
4,5
6,7
+
+
COM (UNUSED)
1ST CONVERSION
LTC1090 AI04E
5,4
6
7
+
COM (
)
2ND CONVERSION
LTC1090 AI05
1111111111
1111111110
0000000001
0000000000
OV
1LSB
VREF – 2LSB
VREF – 1LSB
VREF
VIN
LTC1090 AI06
0111111111
0111111110
1111111111
1111111110
0000000001
0000000000
1000000001
1000000000
VREF – 2LSB
–VREF +1LSB
VREF – 1LSB
VREF
–VREF
VIN
– 2LSB
– 1LSB
1LSB
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