- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17024 > XE8000EV120 (Semtech)BOARD EVAL FOR SX8722I070TRLF PDF資料下載
參數(shù)資料
| 型號： | XE8000EV120 |
| 廠商： | Semtech |
| 文件頁數(shù)： | 78/108頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR SX8722I070TRLF |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ZoomingADC™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | I²C |
| 工作溫度： | -40°C ~ 125°C |
| 已用 IC / 零件： | SX8722 |
| 已供物品： | 板，CD |
| 產(chǎn)品目錄頁面： | 585 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | SX8722I070LFDKR-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ SX8722I070LFCT-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ SX8722I070LFTR-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ |
| 其它名稱： | XM8000EV120 XM8000EV120-ND |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁當(dāng)前第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁
ACS - Revision 4.2
October 2008
2008 Semtech Corp.
www.semtech.com
Page 71
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8722
High gain acquisition for sensor interface
lower, no spikes will arise, but a small offset can be generated by the integration of the charges generated by the switched
capacitors, this corresponds to the mean impedance effect.
Note:
One can increase the mean input impedance of the ZoomingADC by lowering the acquisition clock fs.
One can increase the mean input impedance of the ZoomingADC by decreasing the gain of the first enabled amplifier.
One can increase the effective input impedance of the ZoomingADC by having a source with a high electrical bandwidth (sensor electrical
bandwidth much higher than fs).
12.12. PGA Settling or Input Channel Modifications
PGAs are reset after each writing operation to registers CxZadcReg1-5. Similarly, input channels are switched after
modifications of AMUX[4:0] or VMUX. To ensure precise conversion, the ADC must be started after a PGA or inputs
common-mode stabilization delay. This is done by writing bit START several cycles after PGA settings modification or
channel switching. Delay between PGA start or input channel switching and ADC start should be equivalent to OSR
(between 8 and 1024) number of cycles. This delay does not apply to conversions made without the PGAs.
If the ADC is not settled within the specified period, there is most probably an input impedance problem (see previous
section).
12.13. PGA Gain & Offset, Linearity and Noise
Hereafter are a few design guidelines that should be taken into account when using the ZoomingADC :
1. Keep in mind that increasing the overall PGA gain, or "zooming" coefficient, improves linearity but degrades noise
performance.
2. Use the minimum number of PGA stages necessary to produce the desired gain ("zooming") and offset. Bypass
unnecessary PGAs.
3. Put most gain on PGA3 and use PGA2 and PGA1 only if necessary.
4. PGA3 should be always ON for best linearity.
5. For low-noise applications where power consumption is not a primary concern, maintain the largest bias currents in the
PGAs and in the ADC; i.e. set IB_AMP_PGA[1:0] = IB_AMP_ADC[1:0] = '11'.
6. For lowest output offset error at the output of the ADC, bypass PGA2 and PGA3. Indeed, PGA2 and PGA3 typically
introduce an offset of about 5 to 10 LSB (16 bit) at their output. Note, however, that the ADC output offset is easily calibrated
out by software.
12.14. Power Reduction
The ZoomingADC is particularly well suited for low-power applications. When very low power consumption is of primary
concern, such as in battery operated systems, several parameters can be used to reduce power consumption as follows:
1. Operate the acquisition chain with a reduced supply voltage VBATT.
2. Disable the PGAs which are not used during analog-to-digital conversion with ENABLE[3:0].
3. Disable all PGAs and the ADC when the system is idle and no
conversion is performed.
4. Use lower bias currents in the PGAs and the ADC using the
control words IB_AMP_PGA[1:0] and IB_AMP_ADC[1:0].
5. Reduce sampling frequency.
]
[
2
V
Not
Recommended
for
New
Designs
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD923011-200EBZ | BOARD EVAL FOR AD9230 200MSPS |
| HW-V5-ML523-UNI-G-J | EVALUATION PLATFORM VIRTEX-5 |
| AD9228-65EBZ | BOARD EVAL FOR AD9228 |
| GSM10DRST | CONN EDGECARD 20POS DIP .156 SLD |
| STD21W-A | WIRE & CABLE MARKERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XE8000EV121 | 功能描述:BOARD EVAL FOR SX8723/24 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板 |
| XE8000MP | 功能描述:PROG BOARD AND PROSTART2 CARD RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 獨立編程器 系列:- 產(chǎn)品目錄繪圖:CHIPPROG-G4 標(biāo)準(zhǔn)包裝:1 系列:- 類型:成組編程器 適用于相關(guān)產(chǎn)品:EEPROM，EPROM，F(xiàn)LASH，MCU，NVRAM，PLD 所含物品:編程器，線纜，CD 產(chǎn)品目錄頁面:598 (CN2011-ZH PDF) 相關(guān)產(chǎn)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... |
| XE8801A | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition with ZoomingADC? |
| XE8801AMI000WP | 功能描述:SENSING MACHINE WITH 16 + 10 BIT RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應(yīng)用 系列:XE880x 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標(biāo)準(zhǔn)包裝:250 系列:- 應(yīng)用:網(wǎng)絡(luò)處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:PG-LQFP-208 其它名稱:SP000314382 |
| XE8801AMI027LF | 功能描述:IC DAS 16BIT FLASH 8K MTP 44LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應(yīng)用 系列:XE880x 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標(biāo)準(zhǔn)包裝:250 系列:- 應(yīng)用:網(wǎng)絡(luò)處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:PG-LQFP-208 其它名稱:SP000314382 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。