參數(shù)資料
型號： AD7793BRU
廠商： Analog Devices Inc
文件頁數(shù)： 5/33頁
文件大?。?/td> 0K
描述： IC ADC 24BIT 3CH LP 16-TSSOP
設計資源： Fully Isolated Input Module Based on AD7793 and ADuM5401(CN0066)
Fully Isolated Input Module Based on AD7793, ADuM5401, and a High Performance In-Amp (CN0067)
標準包裝： 1
位數(shù)： 24
采樣率（每秒）： 500
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉換器數(shù)目： 1
功率耗散（最大）： 2.5mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 16-TSSOP
包裝： 管件
輸入數(shù)目和類型： 3 個差分，單極；3 個差分，雙極
配用： EVAL-AD7793EBZ-ND - BOARD EVALUATION FOR AD7793
AD7792/AD7793
Rev. B | Page 12 of 32
INTERNAL REFERENCE
Table 8 shows the output rms noise of the AD7792/AD7793 for
some of the update rates and gain settings. The numbers given
are for the bipolar input range with the internal 1.17 V
reference. These numbers are typical and are generated with a
differential input voltage of 0 V. Table 9 and Table 10 show the
effective resolution, with the output peak-to-peak (p-p)
resolution given in parentheses for the AD7793 and AD7792,
respectively. It is important to note that the effective resolution
is calculated using the rms noise, while the p-p resolution is
calculated based on p-p noise. The p-p resolution represents the
resolution for which there is no code flicker. These numbers are
typical and are rounded to the nearest LSB.
Table 8. Output RMS Noise (μV) vs. Gain and Output Update Rate for the AD7792 and AD7793 Using the Internal Reference
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
0.81
0.67
0.32
0.2
0.13
0.065
0.04
0.039
8.33
1.18
1.11
0.41
0.25
0.16
0.078
0.058
0.059
16.7
1.96
1.72
0.55
0.36
0.25
0.11
0.088
33.2
2.99
2.48
0.83
0.48
0.33
0.17
0.13
0.12
62
3.6
3.25
1.03
0.65
0.46
0.2
0.15
123
5.83
5.01
1.69
0.96
0.67
0.32
0.25
0.26
242
11.22
8.64
2.69
1.9
1.04
0.45
0.35
0.34
470
12.46
10.58
4.58
2
1.27
0.63
0.50
0.49
Table 9. Typical Resolution (Bits) vs. Gain and Output Update Rate for the AD7793 Using the Internal Reference
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
21.5 (19)
20.5 (18)
21 (18.5)
20.5 (18)
20 (17.5)
19 (16.5)
8.33
21 (18.5)
20 (17.5)
20.5 (18)
20 (17.5)
19 (16.5)
18 (15.5)
16.7
20 (17.5)
19.5 (17)
20 (17.5)
19.5 (17)
19 (16.5)
19.5 (17)
18.5 (16)
17.5 (15)
33.2
19.5 (17)
19 (16.5)
19.5 (17)
19 (16.5)
18.5 (16)
18 (15.5)
17 (14.5)
62
19.5 (17)
18.5 (16)
19 (16.5)
18.5 (16)
18 (15.5)
17 (14.5)
123
18.5 (16)
18 (15.5)
18.5 (16)
18 (15.5)
17.5 (15)
18 (15.5)
17 (14.5)
16 (13.5)
242
17.5 (15)
17 (14.5)
17.5 (15)
17 (14.5)
17.5 (15)
16.5 (14)
15.5 (13)
470
17.5 (15)
17 (14.5)
16 (13.5)
15 (12.5)
Table 10. Typical Resolution (Bits) vs. Gain and Output Update Rate for the AD7792 Using the Internal Reference
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
16 (16)
8.33
16 (16)
16 (15.5)
16.7
16 (16)
16 (15)
33.2
16 (16)
16 (15.5)
16 (14.5)
62
16 (16)
16 (15.5)
16 (14.5)
123
16 (16)
16 (15.5)
16 (16)
16 (15.5)
16 (15)
16 (15.5)
16 (14.5)
15.5 (13.5)
242
16 (15)
16 (14.5)
16 (15)
16 (14.5)
16 (15)
16 (14)
15 (13)
470
16 (15)
16 (14.5)
15.5 (13.5)
14.5 (12.5)
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