參數(shù)資料
型號(hào): EVAL-AD7797EBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 24/24頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD7797
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 24
采樣率(每秒): 123
數(shù)據(jù)接口: 串行
輸入范圍: ±VREF/128
在以下條件下的電源(標(biāo)準(zhǔn)): 1.6mW @ 123SPS
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7797
已供物品: 板,CD
相關(guān)產(chǎn)品: AD7797BRUZ-REEL-ND - IC ADC 24BIT SIG-DEL 1CH 16TSSOP
AD7797BRUZ-ND - IC ADC 24BIT SIG-DEL 1CH 16TSSOP
AD7796/AD7797
Rev. A | Page 9 of 24
RMS NOISE AND RESOLUTION SPECIFICATIONS
Table 6 shows the rms noise of the AD7796/AD7797 for some
of the update rates. The numbers given are for the bipolar input
range with an external 2.5 V reference. These numbers are
typical and are generated with a differential input voltage of 0 V.
Table 7 and Table 8 show the effective resolution, while the
output peak-to-peak (p-p) resolution is shown in brackets. It is
important to note that the effective resolution is calculated
using the rms noise, while the p-p resolution is based on the 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 0.5 LSB.
Table 6. RMS Noise (μV) vs. Output Update Rate for the
AD7796/AD7797 Using a 2.5 V Reference
Update Rate (Hz)
RMS Noise (μV)
4.17
0.065
6.25
0.07
8.33
0.08
10
0.09
12.5
0.1
16.7
0.12
33.2
0.17
50
0.21
62
0.23
123
0.43
Table 7. Typical Resolution (Bits) vs. Output Update Rate for
the AD7797 Using a 2.5 V Reference
Update Rate (Hz)
Effective Bits (p-p)
4.17
19 (16.5)
6.25
19 (16.5)
8.33
19 (16)
10
18.5 (16)
12.5
18.5 (16)
16.7
18.5 (15.5)
33.2
18 (15)
50
17.5 (15)
62
17.5 (14.5)
123
16.5 (13.5)
Table 8. Typical Resolution (Bits) vs. Output Update Rate for
the AD7796 Using a 2.5 V Reference
Update Rate (Hz)
Effective Bits (p-p)
4.17
16 (16)
6.25
16 (16)
8.33
16 (16)
10
16 (16)
12.5
16 (16)
16.7
16 (15.5)
33.2
16 (15)
50
16 (15)
62
16 (14.5)
123
16 (13.5)
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