參數(shù)資料
型號: EVAL-AD7730EB
廠商: Analog Devices, Inc.
英文描述: Bridge Transducer ADC
中文描述: 橋傳感器模數(shù)轉(zhuǎn)換器
文件頁數(shù): 11/52頁
文件大小: 497K
代理商: EVAL-AD7730EB
AD7730/AD7730L
REV. A
–11–
T able III. Output Noise vs. Input Range and Update Rate (CHP = 0)
T ypical Output RMS Noise in nV
Output
Data Rate Frequency
–3 dB
SF
Word
Settling T ime
Normal Mode
Settling T ime
Fast Mode
Input Range
=
6
80 mV
Input Range
=
6
40 mV
Input Range
=
6
20 mV
Input Range
=
6
10 mV
150 Hz
200 Hz
300 Hz
600 Hz
1200 Hz
5.85 Hz
7.8 Hz
11.7 Hz
23.4 Hz
46.8 Hz
2048
1536
1024
512
256
166 ms
125 ms
83.3 ms
41.6 ms
20.8 ms
26.6 ms
20 ms
13.3 ms
6.6 ms
3.3 ms
160
190
235
300
435
110
130
145
225
315
80
95
100
135
210
60
75
80
110
150
T able IV. Peak-to-Peak Resolution vs. Input Range and Update Rate (CHP = 0)
Peak-to-Peak Resolution in Counts (Bits)
Output
Data Rate Frequency
–3 dB
SF
Word
Settling T ime
Normal Mode
Settling T ime
Fast Mode
Input Range
=
6
80 mV
Input Range
=
6
40 mV
Input Range
=
6
20 mV
Input Range
=
6
10 mV
150 Hz
200 Hz
300 Hz
600 Hz
1200 Hz
5.85 Hz
7.8 Hz
11.7 Hz
23.4 Hz
46.8 Hz
2048
1536
1024
512
256
166 ms
125 ms
83.3 ms
41.6 ms
20.8 ms
26.6 ms
20 ms
13.3 ms
6.6 ms
3.3 ms
165k (17.5)
140k (17)
115k (17)
90k (16.5)
60k (16)
120k (17)
100k (16.5)
90k (16.5)
60k (16)
43k (15.5)
80k (16.5)
70k (16)
65k (16)
50k (15.5)
32k (15)
55k (16)
45k (15.5)
40k (15.5)
30k (15)
20k (14.5)
ON-C HIP RE GIST E RS
T he AD7730 contains thirteen on-chip registers which can be accessed via the serial port of the part. T hese registers are summarized
in Figure 4 and in T able 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
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DOUT
REGISTER
SELECT
DECODER
Figure 4. Register Overview
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