参数资料
型号: EVAL-AD7730LEBZ
厂商: Analog Devices Inc
文件页数: 3/53页
文件大小: 0K
描述: BOARD EVALUATION FOR AD7730
标准包装: 1
ADC 的数量: 1
位数: 24
采样率(每秒): 600
数据接口: 串行
输入范围: ±80 mV
在以下条件下的电源(标准): 125mW @ 600SPS
工作温度: -40°C ~ 85°C
已用 IC / 零件: AD7730
已供物品: 板,CD
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AD7730/AD7730L
–11–
Table III. Output Noise vs. Input Range and Update Rate (CHP = 0)
Typical Output RMS Noise in nV
Output
–3 dB
SF
Settling Time
Input Range
Data Rate Frequency
Word
Normal Mode
Fast Mode
= 80 mV
= 40 mV
= 20 mV
= 10 mV
150 Hz
5.85 Hz
2048
166 ms
26.6 ms
160
110
80
60
200 Hz
7.8 Hz
1536
125 ms
20 ms
190
130
95
75
300 Hz
11.7 Hz
1024
83.3 ms
13.3 ms
235
145
100
80
600 Hz
23.4 Hz
512
41.6 ms
6.6 ms
300
225
135
110
1200 Hz
46.8 Hz
256
20.8 ms
3.3 ms
435
315
210
150
Table IV. Peak-to-Peak Resolution vs. Input Range and Update Rate (CHP = 0)
Peak-to-Peak Resolution in Counts (Bits)
Output
–3 dB
SF
Settling Time
Input Range
Data Rate Frequency
Word
Normal Mode
Fast Mode
= 80 mV
= 40 mV
= 20 mV
= 10 mV
150 Hz
5.85 Hz
2048
166 ms
26.6 ms
165k (17.5)
120k (17)
80k (16.5)
55k (16)
200 Hz
7.8 Hz
1536
125 ms
20 ms
140k (17)
100k (16.5)
70k (16)
45k (15.5)
300 Hz
11.7 Hz
1024
83.3 ms
13.3 ms
115k (17)
90k (16.5)
65k (16)
40k (15.5)
600 Hz
23.4 Hz
512
41.6 ms
6.6 ms
90k (16.5)
60k (16)
50k (15.5)
30k (15)
1200 Hz
46.8 Hz
256
20.8 ms
3.3 ms
60k (16)
43k (15.5)
32k (15)
20k (14.5)
ON-CHIP REGISTERS
The AD7730 contains thirteen on-chip registers which can be accessed via the serial port of the part. These registers are summarized
in Figure 4 and in Table V and described in detail in the following sections.
COMMUNICATIONS REGISTER
STATUS REGISTER
DATA REGISTER
MODE REGISTER
FILTER REGISTER
DAC REGISTER
OFFSET REGISTER (x3)
GAIN REGISTER (x3)
TEST REGISTER
RS2
RS1
RS0
DIN
DOUT
DIN
DOUT
REGISTER
SELECT
DECODER
Figure 4. Register Overview
REV. B
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