- 您现在的位置：买卖IC网 > PDF目录10675 > AD7193BRUZ (Analog Devices Inc)IC ADC 24BIT SPI 4.8K 28-TSSOP PDF资料下载
参数资料
| 型号： | AD7193BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 46/57页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SPI 4.8K 28-TSSOP |
| 产品培训模块： | Weigh Scale Introduction |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 4.8k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 4 个差分，单极；4 个差分，双极；8 个伪差分，单极；8 个伪差分，双极 |
| 产品目录页面： | 777 (CN2011-ZH PDF) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页当前第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页
Data Sheet
AD7193
Rev. D | Page 49 of 56
50 Hz/60 Hz Rejection, Sinc4 Filter
Figure 57 shows the frequency response when FS[9:0] is set to 6
and the postfilter averages by 16. This gives an output data rate
of 42.10 Hz when the master clock equals 4.92 MHz. The sinc
filter places the first notch at
fNOTCH = fCLK/(1024 × FS[9:0])
The postfiltering places notches at fNOTCH/Avg (Avg is the amount of
averaging) and multiples of this frequency; therefore, when FS[9:0]
is set to 6 and the postfilter averaging is 16, a notch is placed at
800 Hz due to the sinc filter and notches are placed at 50 Hz
and multiples of 50 Hz due to the postfilter. The notch at 50 Hz
is a first-order notch; therefore, the notch is not wide. This means
that the rejection at 50 Hz exactly is good, assuming a stable
4.92 MHz master clock. However, in a band of 50 Hz ± 1 Hz, the
rejection degrades significantly. The rejection at 50 Hz ± 0.5 Hz is
40 dB minimum, assuming a stable clock; therefore, a good master
clock source is recommended when using fast settling mode.
08367-
053
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
30
60
90
120
150
FREQUENCY (Hz)
FI
L
T
E
R
G
AI
N
(
d
B)
Figure 57. Filter Response for Average + Decimate Filter
(Sinc4 Filter, FS[9:0] = 6, Average by 16)
Figure 58 shows the filter response when FS[9:0] is set to 5 and
the postfilter averages by 16. In this case, the output data rate is
equal to 50.53 Hz (4.92 MHz master clock) while the first filter
notch is placed at 60 Hz. The rejection at 60 Hz ± 0.5 Hz is equal to
40 dB minimum.
08367-
058
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
30
60
90
120
150
FREQUENCY (Hz)
FI
L
T
E
R
G
AI
N
(
d
B)
Figure 58. Filter Response for Average + Decimate Filter
(Sinc4 Filter, FS[9:0] = 5, Average by 16)
Simultaneous 50 Hz/60 Hz rejection is achieved when FS[9:0] is
set to 30 and the postfilter averages by 16. The output data rate
is equal to 8.4 Hz, whereas the rejection at 50 Hz ± 0.5 Hz and
60 Hz ± 0.5 Hz is typically 44 dB.
08367-
059
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
FREQUENCY (Hz)
FI
L
T
E
R
G
AI
N
(
d
B)
0
30
60
90
120
150
Figure 59. Filter Response for Average + Decimate Filter
(Sinc4 Filter, FS[9:0] = 30, Average by 16)
Simultaneous 50 Hz and 60 Hz rejection is also achieved by
using an FS word of 96 and averaging by 16; this places a notch
at 50 Hz. Setting the REJ60 bit to 1 places a notch at 60 Hz (see
Figure 60). The output data rate is reduced to 2.63 Hz with this
configuration but the rejection is improved to typically 100 dB
at 50 Hz ± 1 Hz and 60 Hz ± 1 Hz.
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
30
60
90
120
150
FREQUENCY (Hz)
FILTE
R
G
A
IN
(
dB
)
08367-
157
Figure 60. Filter Response for Average + Decimate Filter
(Sinc4 Filter, FS[9:0] = 96, Average by 16)
相关PDF资料 |
PDF描述 |
|---|---|
| LM293AN | IC COMPARATOR DUAL DIFF 8-DIP |
| KA393DTF | IC COMPARATOR DUAL DIFF 8-SOP |
| AMIS42700WCGA4H | IC TXRX CAN DUAL HS 20SOIC |
| AD7718BRUZ | IC ADC 24BIT R-R 8/10CH 28-TSSOP |
| AD7718BRZ | IC ADC 24BIT R-R 8/10CH 28SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7193BRUZ | 制造商:Analog Devices 功能描述:IC ADC 24BIT 4.8KHZ TSSOP-28 |
| AD7193BRUZ-REEL | 功能描述:IC ADC 24BIT SPI 4.8KHZ 28TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7194 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA |
| AD7194BCPZ | 功能描述:IC ADC 24BIT SPI 4.8K 32-LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7194BCPZ-REEL | 功能描述:IC ADC 24BIT SPI 4.8KHZ 32LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
发布紧急采购，3分钟左右您将得到回复。