参数资料
型号: SX8725CWLTDT
元件分类: ADC
英文描述: 2-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL/PARALLEL ACCESS, PDSO12
封装: 4 X 4 MM, HALOGEN FREE AND ROHS COMPLIANT, MLPD-12
文件页数: 25/68页
文件大小: 1718K
代理商: SX8725CWLTDT
www.semtech.com/products/
Page 31
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8725C
ZoomingADC for sensing data acquisition
Revision 1.01
January 2011
Semtech
resolution is truncated to 16 bit by the output register size, it may make sense to set OSR and NELCONV to higher values
in order to reduce the influence of the thermal noise in the PGA .
7.7.6 Conversion Time & Throughput
As explained in Figure 15, conversion time is given by:
and throughput is then simply 1/TCONV. For example, consider an over-sampling ratio of 256, 2 elementary conversions,
and a sampling frequency of 500 kHz (SetOsr = "101", SetNelconv = "01" and SetFs = "00"). In this case, using Table 18,
the conversion time is 515 sampling periods, or 1.03ms. This corresponds to a throughput of 971Hz in continuous-time
mode. The plot of Figure 16 illustrates the classic trade-off between resolution and conversion time.
Table 17. Resolution1 vs. SetOsr and SetNelconv settings
1.
In shaded area, the resolution is truncated to 16 bits due to output register size RegA-
COut[15:0]
SetOsr
control bits
SetNelconv control bits
‘00‘
‘01‘
‘10‘
‘11’
‘000‘
6789
‘001‘
8910
11
‘010‘
10
11
12
13
‘011‘
12
13
14
15
‘100‘
14
15
16
‘101‘
16
‘110‘
16
‘111‘
16
Equation 17
Table 18. Normalized conversion time (Tconv x fs) vs. SetOsr and SetNelconv settings1
SetOsr bits
OSR
SetNelconv control bits
NELCONV
‘00‘
1
‘01‘
2
‘10‘
4
‘11‘
8
‘000‘
10
19
37
73
‘001‘
18
35
69
137
‘010‘
34
67
133
265
‘011‘
66
131
261
521
]
[
/
)
1
)
1
(
s
f
OSR
N
T
S
ELCONV
CONV
+
=
相关PDF资料
PDF描述
SX8725E083TRT 3-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO12
SX8725E083TDT 3-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO12
SXO9324 VCO, 2200 MHz - 2400 MHz
SY55854UYITR 2-CHANNEL, CROSS POINT SWITCH, PDSO16
T-1005-T-M 1000 MHz - 12400 MHz 50 ohm RF/MICROWAVE TERMINATION
相关代理商/技术参数
参数描述
SX8725E083TDT 功能描述:IC DAS PRESS/TEMP SENS 12MLPD RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:ZoomingADC™ 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG,串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP(0.173",4.40mm 宽) 供应商设备封装:20-TSSOP 包装:管件
SX8725E083TRT 功能描述:IC DAS PRESSURE/TEMP SENS 12MLPD RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:ZoomingADC™ 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG,串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP(0.173",4.40mm 宽) 供应商设备封装:20-TSSOP 包装:管件
SX8725S 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:ZoomingADC for sensing data acquisition ADVANCED COMMUNICATIONS & SENSING
SX8725SWLTDT 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:1 INPUTS ZOOMING ADC WITH SPI
SX8733 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Precision Diode Digital Temperature For Up To 3 External Sensors