收藏本站
参数资料
型号： XE8000EV104
厂商： Semtech
文件页数： 17/156页
文件大小： 0K
描述： EVAL BOARD FOR XE8805AMI028LF
标准包装： 1
类型： MCU
适用于相关产品： XE88LC05AMI028
所含物品： 完全组装的评估板
Semtech 2006
www.semtech.com
16-27
XE8805/05A
0
20
40
60
80
-5
-4
-3
-2
-1
0
1
2
3
4
5
Output Code Deviation From Mean Value [LSB]
O
ccu
ren
ces
[%
o
ftota
lsa
mp
le
s]
Figure 16-17. ADC noise (PGA1, 2 & 3 bypassed, OSR=512,NELCONV=2)
PGA1
PGA2
PGA3
ADC
GD1
GD2
GD3
V
N1
f
S
V
N2
V
N3
(a)
PGA1
PGA2
PGA3
ADC
GD1
GD2
GD3
V
N,IN
f
S
(b)
Figure 16-18. (a) Simple noise model for PGAs and ADC
and (b) total input referred noise
As an example, consider the system where: GD2 = 10 (GD1 = 1; PGA3 bypassed), OSR = 512, NELCONV = 2, VREF =
5V. In this case, the noise contribution VN1 of PGA1 is dominant over that of PGA2. Using equation Eq. 21, we get:
VN,IN = 6.4V (rms) at the input of the acquisition chain, or, equivalently, 0.85 LSB at the output of the ADC.
Considering a 0.2V (rms) maximum signal amplitude, the signal-to-noise ratio is 90dB.
Noise can also be reduced by implementing a software filter. By making an average on a number of subsequent
measurements, the apparent noise is reduced the square root of the number of measurement used to make the
average.
16.8.5
Gain Error and Offset Error
Gain error is defined as the amount of deviation between the ideal transfer function (theoretical equation Eq. 18)
and the measured transfer function (with the offset error removed).
The actual gain of the different stages can vary depending on the fabrication tolerances of the different elements.
Although these tolerances are specified to a maximum of
±3%, they will be most of the time around ±0.5%.
Moreover, the tolerances between the different stages are not correlated and the probability to get the maximal
error in the same direction in all stages is very low. Finally, these gain errors can be calibrated by the software at
the same time with the gain errors of the sensor for instance.
Figure 16-19 shows gain error drift vs. temperature for different PGA gains. The curves are expressed in % of Full-
Scale Range (FSR) normalized to 25°C.
Not
Recommended
for
New
Designs
相关PDF资料
PDF描述
VE-B7P-EY CONVERTER MOD DC/DC 13.8V 50W
EBA28DRTH CONN EDGECARD .125 DIP 56POS
EEC20DRTH-S734 CONN EDGECARD 40POS DIP .100 SLD
AT-S-26-8/8/S-14-R MOD CORD STANDARD 8-8 SILVER 14'
EBC25DREN-S13 CONN EDGECARD 50POS .100 EXTEND
相关代理商/技术参数
参数描述
XE8000EV108 功能描述:EVAL BOARD FOR XE8806/XE8807 RoHS:否 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:- 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA
XE8000EV110 功能描述:EVAL BOARD FOR XE8802AMI035LF RoHS:否 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:- 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA
XE8000EV120 功能描述:BOARD EVAL FOR SX8722I070TRLF RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:ZoomingADC™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件
XE8000EV121 功能描述:BOARD EVAL FOR SX8723/24 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
XE8000MP 功能描述:PROG BOARD AND PROSTART2 CARD RoHS:否 类别:编程器，开发系统 >> 独立编程器 系列:- 产品目录绘图:CHIPPROG-G4 标准包装:1 系列:- 类型:成组编程器 适用于相关产品:EEPROM，EPROM，FLASH，MCU，NVRAM，PLD 所含物品:编程器，线缆，CD 产品目录页面:598 (CN2011-ZH PDF) 相关产品:AE-TS56-16I-3-ND - ISP CABLEADAPTER 14-PIN HEADERAE-TS40N-ND - ADAPTER SOCKET 40-TSOP TO 40-DIPAE-TS32N-ND - ADAPTER SOCKET 32-TSOP TO 32-DIPAE-TS28-ND - ADAPTER SOCKET 28-TSOP TO 28-DIPAE-T44-P16-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-T44-I51/505-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-SS56-16I-ND - ADAPTER SOCKET 56-SSOP TO 40-DIPAE-SP8U-ND - ADAPTER SOCKET 8-SSOP TO 8-DIPAE-SP28U2-ND - ADAPTER SOCKET 28-SSOP TO 28-DIPAE-SP28U1-ND - ADAPTER SOCKET 28-SSOP TO 28-DIP更多...
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*