参数资料
型号: ADS1241EVM
厂商: Texas Instruments
文件页数: 14/30页
文件大小: 0K
描述: EVAL MODULE FOR ADS1241
标准包装: 1
ADC 的数量: 1
位数: 24
采样率(每秒): 15
数据接口: SPI?
输入范围: 0 ~ 2.5 V
在以下条件下的电源(标准): 0.6mW @ 3V
工作温度: -40°C ~ 85°C
已用 IC / 零件: ADS1241M
已供物品:
相关产品: ADS1241EG4-ND - IC ADC 24-BIT SER PROGBL 28-SSOP
ADS1241E/1KG4-ND - IC ADC 24-BIT SER PROGBL 28-SSOP
296-25895-2-ND - IC ADC 24-BIT SER PROGBL 28-SSOP
ADS1241E-ND - IC ADC 24-BIT SER PROGBL 28-SSOP
其它名称: 296-13537
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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