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参数资料
| 型号： | EVAL-AD7194EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 36/57页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR AD7194 |
| 设计资源： | EVAL-AD7zzzEBZ Schematic AD7194 Gerber Files |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7194 |
| 已供物品： | 板，线缆 |
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AD7194
Data Sheet
Rev. A | Page 40 of 56
When the analog input is constant or a channel change occurs,
valid conversions are available at a constant output data rate.
When conversions are being performed on a single channel and
a step change occurs on the analog input, the ADC continues to
output fully settled conversions if the step change is synchronized
with the conversion process. If the step change is asynchronous,
one conversion is output from the ADC, which is not completely
settled (see Figure 30).
ANALOG
INPUT
ADC
OUTPUT
FULLY
SETTLED
1/
fADC
08566-
029
Figure 30. Sinc4 Zero Latency Operation
Table 29 shows examples of output data rate and the corres-
ponding FS values.
Table 29. Examples of Output Data Rates and the
Corresponding Settling Time (Zero Latency)
FS[9:0]
Output Data Rate (Hz)
Settling Time (ms)
480
2.5
400
96
12.5
80
15
66.6
Sinc4 50 Hz/60 Hz Rejection
FS[9:0] is set to 96 and the master clock is 4.92 MHz. With zero
latency disabled, the output data rate is equal to 50 Hz. With
zero latency enabled, the output data rate is 12.5 Hz. The sinc4
filter provides 50 Hz (±1 Hz) rejection in excess of 120 dB
minimum, assuming a stable master clock.
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
25
50
75
100
125
150
FREQUENCY (Hz)
FI
L
T
E
R
G
AI
N
(
d
B)
08566-
030
Figure 31. Sinc4 Filter Response (FS[9:0] = 96)
Figure 32 shows the frequency response when FS[9:0] is
programmed to 80 and the master clock is equal to 4.92 MHz.
The output data rate is 60 Hz when zero latency is disabled and
15 Hz when zero latency is enabled. The sinc4 filter provides
60 Hz (±1 Hz) rejection of 120 dB minimum, assuming a stable
master clock.
–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)
08566-
031
Figure 32. Sinc4 Filter Response (FS[9:0] = 80)
Simultaneous 50 Hz and 60 Hz rejection is obtained when
FS[9:0] is programmed to 480 and the master clock equals
4.92 MHz. The output data rate is 10 Hz when zero latency is
disabled and 2.5 Hz when zero latency is enabled. The sinc4
filter provides 50 Hz (±1 Hz) and 60 Hz (±1 Hz) rejection of
120 dB minimum, assuming a stable master clock.
–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)
08566-
032
Figure 33. Sinc4 Filter Response (FS[9:0] = 480)
Simultaneous 50 Hz/60 Hz rejection can also be achieved using
the REJ60 bit in the mode register. When FS[9:0] is set to 96
and REJ60 is set to 1, notches are placed at 50 Hz and 60 Hz.
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相关代理商/技术参数 |
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|---|---|
| EVAL-AD7195EBZ | 功能描述:BOARD EVAL FOR AD7195 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-AD7262EDZ | 功能描述:BOARD EVAL CONTROL AD7262 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 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 |
| EVAL-AD7264EDZ | 功能描述:BOARD EVALUATION FOR AD7264 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 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 |
| EVAL-AD7265CB | 制造商:AD 制造商全称:Analog Devices 功能描述:Differential/Single-Ended Input, Dual 1 MSPS, 12-Bit, 3-Channel SAR ADC |
| EVAL-AD7265CB1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Differential Input, Dual 1 MSPS, 12-Bit, 3-Channel SAR ADC |
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