OPA2, R
參數(shù)資料
型號: ADS1244IDGST
廠商: Texas Instruments
文件頁數(shù): 7/24頁
文件大?。?/td> 0K
描述: IC ADC LP 24-BIT 10-MSOP
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
位數(shù): 24
采樣率(每秒): 15
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 270µW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型: 2 個單端,單極;1 個差分,雙極
產(chǎn)品目錄頁面: 889 (CN2011-ZH PDF)
配用: 296-18359-ND - EVALUATION MODULE FOR ADS1244
其它名稱: 296-14003-6
ADS1244
15
SBAS273
www.ti.com
WEIGH SCALE SYSTEM
Figure 19 shows an example of a weigh scale system. OPA1,
OPA2, RG, and RF form a differential gain stage to amplify the
load cell output. The gain is equal to (1 + 2 RF/RG). Depend-
ing on the load cell, the typical gain setting is from 100 to 250.
RI and CI form a single-pole low-pass filter to band-limit the
FIGURE 19. Weigh Scale System.
ADS1244
VREFP
AVDD
SCLK
DRDY/ DOUT
P1.2/TA1
P1.0/TA0
XIN
XOUT/TCLK
CLK
DVDD
VREFN
GND
AINP
AVCC
1.8V ~ 3.6V
DVCC
AVSS
MSP430Fx41x
P1.1/TA0/MCLK
AINN
EMI Filter
DVSS
EMI Filter
OPA1(1)
OPA2(1)
NOTE: (1) OPA2335 or OPA2277 recommended.
5V
R
F
R
F
R
G
C
I
R
I
R
VR2
R
VR1
0.1
F
1
F
0.1
F
1
F
0.1
F
32.768kHz
0.1
F
Load Cell
R
I
differential gain stage noise and reduce mechanical vibration
noise from the load cell. The cutoff frequency of the low-pass
filter should be as low as possible to minimize the overall
system noise. The reference voltage is typically generated by
dividing down the supply voltage (RVR1, RVR2). Use a bypass
capacitor located as close to VREFP as possible.
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參數(shù)描述
ADS1244IDGSTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej 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 輸入類型:Differential 信噪比:107 dB 接口類型: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
ADS1245 制造商:BB 制造商全稱:BB 功能描述:Low-Power, 24-Bit Analog-to-Digital Converter
ADS1245IDGSR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-bit Low-Power w/Hi-Z Input Buffer 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 輸入類型:Differential 信噪比:107 dB 接口類型: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
ADS1245IDGSRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-bit Low-Power w/Hi-Z Input Buffer 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 輸入類型:Differential 信噪比:107 dB 接口類型: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
ADS1245IDGST 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-bit Low-Power w/Hi-Z Input Buffer 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 輸入類型:Differential 信噪比:107 dB 接口類型: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