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ADS1232REF 产品设计参考手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
开发套件
描述:
用户指南 USER GUIDE
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P20P23P24P25P26P27P28
应用领域在P1P30
导航目录
ADS1232REF数据手册
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OUT+
EXC-
SENSE-
OUT-
SENSE+
EXC+
GND
REF-
IN2+
IN2-
REF+
IN1+
IN1-
+5VA
OUT-
EXC-
OUT+
EXC+
1
2
3
4
5
6
OUT-
EXC+
OUT+
EXC-
SENSE+
SENSE-
1
2
3
4
5
6
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Getting Started
1.4.2 Connecting a 6-Wire Load Cell to the Terminal Block
Figure 3 shows the connection of a 6-wire load cell to the terminal block. In this configuration, the load cell
is excited by the +5V power supply, and the ADC reference is taken from the sense wire returning from
the load cell. The sense wire connects to the excitation wire at the bridge sensor.
Figure 3. 6-Wire Load Cell to Terminal Block
For this configuration, the reference select switch should be in the EXT position for best performance. The
+5V position also works, but may not perform as well.
1.4.3 Connecting a 4-Wire Load Cell to the Header
Figure 4 shows the connection of a 4-wire load cell to the header. In this configuration, the load cell is
excited by the +5V power supply, and the ADC reference is taken from the power supply.
Figure 4. 4-Wire Load Cell to Header
For this configuration, the reference select switch must be in the +5VA position; the EXT position will not
work.
1.4.4 Connecting a 6-Wire Load Cell to the Header
Figure 5 shows the connection of a 6-wire load cell to the header. In this configuration, the load cell is
excited by the +5V power supply, and the ADC reference is taken from the sense wire returning from the
load cell. The sense wire connects to the excitation wire at the bridge sensor.
Figure 5. 6-Wire Load Cell to Header
For this configuration, the reference select switch should be in the EXT position for best performance. The
+5V position also works, but the device may not perform as well.
5
SBAU120B–November 2005–Revised July 2011 ADS1232REF User's Guide
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