参数资料
型号: AD7797BRUZ-REEL
厂商: Analog Devices Inc
文件页数: 24/24页
文件大小: 0K
描述: IC ADC 24BIT SIG-DEL 1CH 16TSSOP
标准包装: 2,500
位数: 24
采样率(每秒): 123
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 1.6mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
输入数目和类型: 1 个差分,单极;1 个差分,双极
配用: EVAL-AD7797EBZ-ND - BOARD EVALUATION FOR AD7797
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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