参数资料
型号: DC939A
厂商: Linear Technology
文件页数: 25/42页
文件大小: 0K
描述: BOARD DELTA SIGMA ADC LTC2484
软件下载: QuikEval System
设计资源: DC939A Design File
DC939A Schematic
标准包装: 1
系列: Easy Drive™, QuikEval™
ADC 的数量: 1
位数: 24
采样率(每秒): 6.8
数据接口: MICROWIRE?,串行,SPI?
工作温度: 0°C ~ 70°C
已用 IC / 零件: LTC2484
已供物品:
相关产品: LTC2484CDD#TRPBF-ND - IC ADC 24BIT 10-DFN
LTC2484IDD#TRPBF-ND - IC ADC 24BIT 10-DFN
LTC2484IDD#PBF-ND - IC ADC 24BIT 10-DFN
LTC2484CDD#PBF-ND - IC ADC 24BIT 10-DFN
LTC2484
31
2484fd
APPLICATIONS INFORMATION
through the input and the reference pins. If large external
input and/or reference capacitors (CIN, CREF) are used,
the previous section provides formulae for evaluating the
effect of the source resistance upon the converter perfor-
mance for any value of fEOSC. If small external input and/
or reference capacitors (CIN, CREF) are used, the effect of
the external source resistance upon the LTC2484 typical
performance can be inferred from Figures 13, 14, 15 and
16 in which the horizontal axis is scaled by 307200/fEOSC.
Third, an increase in the frequency of the external oscillator
above 1MHz (a more than 3
× increase in the output data
rate) will start to decrease the effectiveness of the internal
autocalibration circuits. This will result in a progressive
degradation in the converter accuracy and linearity. Typical
measured performance curves for output data rates up to
100 readings per second are shown in Figures 20 to 27. In
order to obtain the highest possible level of accuracy from
this converter at output data rates above 20 readings per
OUTPUT DATA RATE (READINGS/SEC)
–10
OFFSET
ERROR
(ppm
OF
V
REF
)
10
30
50
0
20
40
20
40
60
80
2484 F20
100
10
030
50
70
90
VIN(CM) = VREF(CM)
VCC = VREF = 5V
VIN = 0V
fO = EXT CLOCK
TA = 85°C
TA = 25°C
Figure 20. Offset Error vs Output Data Rate and Temperature
OUTPUT DATA RATE (READINGS/SEC)
0
+FS
ERROR
(ppm
OF
V
REF
)
500
1500
2000
2500
3500
10
50
70
2484 F21
1000
3000
40
90 100
20 30
60
80
VIN(CM) = VREF(CM)
VCC = VREF = 5V
fO = EXT CLOCK
TA = 85°C
TA = 25°C
Figure 21. +FS Error vs Output Data Rate and Temperature
Figure 22. –FS Error vs Output Data Rate and Temperature
OUTPUT DATA RATE (READINGS/SEC)
0
–3500
–FS
ERROR
(ppm
OF
V
REF
)
–3000
–2000
–1500
–1000
0
10
50
70
2484 F22
–2500
–500
40
90 100
20 30
60
80
VIN(CM) = VREF(CM)
VCC = VREF = 5V
fO = EXT CLOCK
TA = 85°C
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
10
RESOLUTION
(BITS)
12
16
18
20
24
10
50
70
2484 F23
14
22
40
90 100
20 30
60
80
VIN(CM) = VREF(CM)
VCC = VREF = 5V
VIN = 0V
fO = EXT CLOCK
RES = LOG 2 (VREF/NOISERMS)
TA = 85°C
TA = 25°C
Figure 23. Resolution (NoiseRMS ≤ 1LSB)
vs Output Data Rate and Temperature
相关PDF资料
PDF描述
LGU2W680MELY CAP ALUM 68UF 450V 20% SNAP
EVAL-AD5516-1EBZ BOARD EVAL FOR AD5516-1 2.5V
EBA22DRMN CONN EDGECARD 44POS .125 SQ WW
SDR0302-330KL INDUCTOR POWER 33UH 0.42A 0302
EVAL-AD5516-2EBZ BOARD EVALUATION FOR AD5516-2
相关代理商/技术参数
参数描述
DC940KB-GB 制造商:DEWALT 功能描述:DRILL 12V
DC941A 功能描述:BOARD DELTA SIGMA ADC LTC2482 RoHS:是 类别:编程器,开发系统 >> 评估板 - 模数转换器 (ADC) 系列:Easy Drive™, QuikEval™ 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
DC945KB 制造商:DEWALT 功能描述:DRILL KIT CORDLESS 12V
DC945KB-GB 制造商:DEWALT 功能描述:DRILL 12V
DC-9-500-2.1P 制造商:SR COMPONENTS 功能描述: 制造商:SR Components Inc 功能描述: