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參數(shù)資料
| 型號： | ADS1244EVM |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVALUATION MODULE FOR ADS1244 |
| 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 |
| ADC 的數(shù)量： | 2 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 15 |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | 0 ~ 5 V |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 150mW @ 500kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | ADS1244 |
| 已供物品： | 板 |
| 產(chǎn)品目錄頁面： | 889 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | ADS1244IDGSTG4-ND - IC ADC LP CONVERT 24BIT 10-MSOP ADS1244IDGSRG4-ND - IC ADC LP CONVERT 24BIT 10-MSOP ADS1244IDGSR-ND - IC ADC LP CONVERT 24BIT 10-MSOP 296-14003-6-ND - IC ADC LP 24-BIT 10-MSOP 296-14003-2-ND - IC ADC LP 24-BIT 10-MSOP 296-14003-1-ND - IC ADC LP 24-BIT 10-MSOP |
| 其它名稱： | 296-18359 |
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1244-EVM | 制造商:BB 制造商全稱:BB 功能描述:Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER |
| ADS1244IDGSR | 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 |
| ADS1244IDGSRG4 | 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 |
| ADS1244IDGST | 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 |
| 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 |
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