参数资料
型号: ADS1241E/1K
厂商: Texas Instruments
文件页数: 14/30页
文件大小: 0K
描述: IC ADC 24-BIT SER PROGBL 28-SSOP
产品培训模块: Data Converter Basics
视频文件: Nuts and Bolts of the Delta-Sigma Converter
标准包装: 1
位数: 24
采样率(每秒): 15
数据接口: 串行,SPI?
转换器数目: 1
功率耗散(最大): 1.9mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 标准包装
输入数目和类型: 8 个单端,单极;4 个差分,单极
其它名称: 296-25895-6
ADS1240, 1241
21
SBAS173F
www.ti.com
APPLICATION EXAMPLES
GENERAL-PURPOSE WEIGH SCALE
Figure 8 shows a typical schematic of a general-purpose
weigh scale application using the ADS1240. In this example,
the internal PGA is set to either 64 or 128 (depending on the
maximum output voltage of the load cell) so that the load cell
ADS1240
V
REF+
AV
DD
DRDY
SCLK
D
OUT
D
OUT
CS
X
IN
DV
DD
AGND
DGND
A
IN0
V
DD
2.7V ~ 5.25V
GND
MCLK
A
IN1
EMI Filter
Load Cell
MSP430x4xx
or other
P
V
REF–
SPI
X
OUT
2.7V ~ 5.25V
EMI Filter
output can be directly applied to the differential inputs of
ADS1240.
HIGH PRECISION WEIGH SCALE
Figure 9 shows the typical schematic of a high-precision
weigh scale application using the ADS1240. The front-end
differential amplifier helps maximize the dynamic range.
ADS1240
ADS1241
V
REF+
AV
DD
DRDY
SCLK
D
OUT
D
IN
CS
X
IN
DV
DD
AGND
DGND
A
IN0
V
DD
2.7V ~ 5.25V
GND
MCLK
A
IN1
EMI Filter
Load Cell
OPA2335
G = 1 + 2 R
F/RG
MSP430x4xx
or other
P
V
REF–
SPI
X
OUT
2.7V ~ 5.25V
EMI Filter
OPA2335
R
F
C
I
R
G
R
F
R
I
R
I
FIGURE 8. Schematic of a General-Purpose Weigh Scale.
FIGURE 9. Block Diagram for a High-Precision Weigh Scale.
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