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MCP3461 데이터시트(PDF) 21 Page - Microchip Technology

부품명 MCP3461
상세설명  Two/Four/Eight-Channel, 153.6 ksps, Low Noise, 16-Bit Delta-Sigma ADC
PDF  108 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3461 데이터시트(HTML) 21 Page - Microchip Technology

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 2019-2021 Microchip Technology Inc.
DS20006180D-page 21
MCP3461/2/4
TABLE 2-1:
NOISE RMS LEVEL VS. GAIN VS. OSR (AVDD =DVDD =VREF = 3.3V, TA =+25°C)
Total
OSR
RMS (Peak-to-Peak) Noise (µV)
GAIN =0.33
GAIN=1
GAIN=2
GAIN=4
GAIN=8
GAIN = 16
32
388.9 (2829.9)
130.2 (950)
65.7 (481.7)
33.2 (240.9)
17 (125.5)
8.9 (66.9)
64
151.1 (564)
50.4 (184.6)
25.2 (102.4)
12.6 (56.2)
6.3 (34.8)
3.4 (22.5)
128
151.1 (302.1)
50.4 (107.4)
25.2 (57.1)
12.6 (33.6)
6.3 (21.4)
3.2 (14.3)
256
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (15.9)
3.2 (10.5)
512
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.9)
1024
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
2048
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
4096
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
8192
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
16384
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
20480
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
24576
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
40960
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
49152
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
81920
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
98304
151.1 (302.1)
50.4 (100.7)
25.2 (50.4)
12.6 (25.2)
6.3 (12.6)
3.2 (6.3)
TABLE 2-2:
EFFECTIVE RESOLUTION VS. GAIN VS. OSR (AVDD =DVDD =VREF =3.3V,
TA =+25°C)
Total
OSR
Effective Resolution RMS (Peak-to-Peak) (bits)
GAIN = 0.33
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
GAIN = 16
32
15.6 (12.8)
15.6 (12.8)
15.6 (12.7)
15.6 (12.7)
15.6 (12.7)
15.5 (12.6)
64
17 (15.2)
17 (15.2)
17 (15)
17 (14.9)
17 (14.5)
16.9 (14.2)
128
17 (16)
17 (15.9)
17 (15.9)
17 (15.6)
17 (15.3)
17 (14.9)
256
17 (16)
17 (16)
17 (16)
17 (16)
17 (15.7)
17 (15.4)
512
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (15.9)
1024
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
2048
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
4096
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
8192
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
16384
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
20480
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
24576
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
40960
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
49152
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
81920
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
98304
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
17 (16)
Note:
To calculate noise RMS level and Effective Resolution (Bits) for a given GAIN and data rate, please refer
to the OSR setting and associated data rate relationship shown in Table 5-6.



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