參數(shù)資料
型號(hào): ADS1240E/1KG4
廠商: Texas Instruments
文件頁(yè)數(shù): 14/30頁(yè)
文件大?。?/td> 0K
描述: IC ADC 24-BIT SER PROGBL 24-SSOP
產(chǎn)品培訓(xùn)模塊: Data Converter Basics
視頻文件: Nuts and Bolts of the Delta-Sigma Converter
標(biāo)準(zhǔn)包裝: 1,000
位數(shù): 24
采樣率(每秒): 15
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 1.9mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 24-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類(lèi)型: 4 個(gè)單端,單極;2 個(gè)差分,單極
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.
相關(guān)PDF資料
PDF描述
ADS1240E/1K IC ADC 24-BIT SER PROGBL 24-SSOP
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ADS1241E/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Anlg-to-Dig Converter RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32