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| 型号： | AD7707BRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 42/52页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 3CHAN 20SOIC |
| 标准包装： | 1,000 |
| 位数： | 16 |
| 采样率（每秒）： | 500 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 1mW |
| 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： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个单端，单极；1 个单端，双极；2 个伪差分，单极；2 个伪差分，双极 |
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AD7707
Rev. B | Page 47 of 52
OUTPUT NOISE FOR HIGH LEVEL INPUT CHANNEL, AIN3
5 V OPERATION
Specified high level input voltage ranges of ±10 V, ±5 V, 0 V to
+10 V, and 0 V to +5 V only utilize two gain different gain settings
(gains of 2 and 4) out of the eight possible settings available
channel performance actually is over the complete range of gain
settings. Table 31 shows the AD7707 output rms noise and
peak-to-peak resolution for the selectable notch and 3 dB
frequencies for the part, as selected by FS0, FS1, and FS2 of the
clock register. The numbers are given for all input ranges with a
VREF of 2.5 V, HBIAS = 2.5 V, HICOM = AGND, and AVDD = 5 V.
These numbers are typical and are generated at an analog input
voltage of 0 V for buffered mode of operation. Table 32
meanwhile shows the rms and peak-to-peak resolution for
buffered mode of operation. It is important to note that these
numbers represent the resolution for which there is no code
flicker. They are not calculated based on rms noise but on peak-
to-peak noise. The output noise comes from two sources. The
first is the electrical noise in the semiconductor devices (device
noise) used in the implementation of the modulator. Secondly,
when the analog input is converted into the digital domain,
quantization noise is added. The device noise is at a low level
and is independent of frequency. The quantization noise starts
at an even lower level but rises rapidly with increasing frequency
to become the dominant noise source. The numbers in Table 31
and Table 32 are given for the bipolar input ranges. For the
unipolar ranges, the rms noise numbers are the same as the
bipolar range, but the peak-to-peak resolution is now based on half
the signal range, which effectively means losing one bit of
resolution.
Table 31. AIN3, Output RMS Noise/Peak-to-Peak Resolution vs. Gain and Output Update Rate @ +5 V Unbuffered Mode
Filter First
Notch and
Output Data
Rate
3 dB
Frequency
Typical Output RMS Noise in μV (Peak-to-Peak Resolution)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
MCLK IN = 2.4576 MHz
10 Hz
2.62 Hz
10.90 (16)
5.10 (16)
3.52 (16)
2.62 (16)
2.34 (16)
2.34 (15)
2.30 (14)
50 Hz
13.1 Hz
31.34 (16)
15.82 (16)
9.77 (16)
6.00 (16)
5.12 (16)
5.36 (15)
4.84 (14)
4.75 (13)
60 Hz
15.72 Hz
36.74 (16)
20.36 (16)
12.29 (16)
7.33 (16)
5.84 (16)
5.65 (15)
5.1 (14)
5.3 (13)
250 Hz
65.5 Hz
690 (13)
430 (13)
212 (13)
100 (13)
42 (13)
30 (13)
18.5 (12)
13.8 (12)
500 Hz
131 Hz
4679 (10)
2350 (10)
1287 (10)
564 (10)
294 (10)
137 (10)
73 (10)
53 (10)
Table 32. AIN3, Output RMS Noise/Peak-to-Peak Resolution vs. Gain and Output Update Rate @ +5 V Buffered Mode
Filter First
Notch and
Output Data
Rate
3 dB
Frequency
Typical Output RMS Noise in μV (Peak-to-Peak Resolution)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
MCLK IN = 2.4576 MHz
10 Hz
2.62 Hz
14.28 (16)
7.4 (16)
5.2 (16)
3.35 (16)
3.34 (15.5)
3.34 (15)
2.34 (14.5)
50 Hz
13.1 Hz
37.4 (16)
22.2 (16)
14.3 (16)
8.7 (16)
7.33 (15.5)
7.7 (14.5)
7.6 (13.5)
7.5 (12.5)
60 Hz
15.72 Hz
48.8 (16)
26.6 (16)
15.88 (16)
10.17 (16)
8.78 (15.5)
8.1 (14.5)
8.1 (13.5)
8.1 (12.5)
250 Hz
65.5 Hz
778 (12.5)
475 (13)
187 (13)
98 (13)
60 (12.5)
31.7 (12.5)
23 (12)
18.3 (11.5)
500 Hz
131 Hz
4716 (10.5)
2423 (10.5)
1097 (10.5)
551 (10.5)
288 (10.5)
150 (10)
81 (10)
49 (10)
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相关代理商/技术参数 |
参数描述 |
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| AD7707BRZ-REEL7 | 功能描述:IC ADC 16BIT 3CHAN 20SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7707EB | 制造商:AD 制造商全称:Analog Devices 功能描述:3 V/5 V 610 V Input Range 1 mW 3-Channel 16-Bit Sigma-Delta ADC(316.51 k) |
| AD7708 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-/10-Channel, Low Voltage, Low Power, ADCs |
| AD7708BR | 功能描述:IC ADC 16BIT R-R 8/10CH 28-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7708BR-REEL | 功能描述:IC ADC 16BIT R-R 8/10CH 28-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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