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| 型号： | EVAL-AD7715-3EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/40页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7715 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 500 |
| 数据接口： | 串行 |
| 输入范围： | ±VREF/增益 |
| 在以下条件下的电源（标准）： | 5.3mW @ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7715-3 |
| 已供物品： | 板，CD |
| 相关产品： | AD7715ARUZ-5-ND - IC ADC 16BIT SIGMA-DELTA 16TSSOP AD7715ARUZ-3-ND - IC ADC 16BIT SIGMA-DELTA 16TSSOP AD7715ANZ-3-ND - IC ADC 16BIT SIGMA-DELTA 16DIP AD7715ARUZ-5REEL7-ND - IC ADC 16BIT SIGMA-DELTA 16TSSOP AD7715ARUZ-3REEL7-ND - IC ADC 16BIT SIGMA-DELTA 16TSSOP AD7715ARZ-3REEL-ND - IC ADC 16BIT SIGMA-DELTA 16SOIC AD7715ARZ-3-ND - IC ADC 16BIT 3V 16-SOIC AD7715ANZ-5-ND - IC ADC 16BIT 5V 16-DIP AD7715ARZ-5REEL-ND - IC ADC 16BIT 5V 16-SOIC AD7715ARZ-5-ND - IC ADC 16BIT SIGMA-DELTA 16-SOIC 更多... |
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AD7715
Rev. D | Page 16 of 40
OUTPUT NOISE
AD7715-5
Table 15 shows the AD7715-5 output rms noise for the selecta-
ble notch and 3 dB frequencies for the part, as selected by FS1
and FS0 of the setup register. The numbers given are for the
bipolar input ranges with a VREF of 2.5 V. These numbers are
typical and are generated at a differential analog input voltage
of 0 V with the part used in unbuffered mode (BUF bit of the
setup register = 0). Table 16 meanwhile shows the output peak-
to-peak noise for the selectable notch and 3 dB frequencies
for the part. 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
numbers given are for the bipolar input ranges with a VREF of
2.5 V and for the BUF bit of the setup register = 0. These num-
bers are typical, are generated at an analog input voltage of 0 V
and are rounded to the nearest LSB.
to-peak resolution respectively with the AD7715-5 operating
under the same conditions as above except that now the part is
operating in buffered mode (BUF bit of the setup register = 1).
Table 15. Output RMS Noise vs. Gain and Output Update Rate for AD7715-5 (Unbuffered Mode)
Filter First Notch and Output Data Rate
3 dB Frequency
Typical Output RMS Noise (μV)
MCLK IN =
2.4576 MHz
1 MHz
2.4576 MHz
1 MHz
Gain = 1
Gain = 2
Gain = 32
Gain = 128
50 Hz
20 Hz
13.1 Hz
5.24 Hz
3.8
1.9
0.6
0.52
60 Hz
25 Hz
15.72 Hz
6.55 Hz
4.8
2.4
0.6
0.62
250 Hz
100 Hz
65.5 Hz
26.2 Hz
103
45
3.0
1.6
500 Hz
200 Hz
131 Hz
52.4 Hz
530
250
18
5.5
Table 16. Peak-to-Peak Resolution vs. Gain and Output Update Rate for AD7715-5 (Unbuffered Mode)
Filter First Notch and Output Data Rate
3 dB Frequency
Typical Peak-to-Peak Resolution in Bits
MCLK IN =
2.4576 MHz
1 MHz
2.4576 MHz
1 MHz
Gain = 1
Gain = 2
Gain = 32
Gain = 128
50 Hz
20 Hz
13.1 Hz
5.24 Hz
16
14
60 Hz
25 Hz
15.72 Hz
6.55 Hz
16
13
250 Hz
100 Hz
65.5 Hz
26.2 Hz
13
12
500 Hz
200 Hz
131 Hz
52.4 Hz
10
Table 17. Output RMS Noise vs. Gain and Output Update Rate for AD7715-5 (Buffered Mode)
Filter First Notch and Output Data Rate
3 dB Frequency
Typical Output RMS Noise (μV)
MCLK IN =
2.4576 MHz
1 MHz
2.4576 MHz
1 MHz
Gain = 1
Gain = 2
Gain = 32
Gain = 128
50 Hz
20 Hz
13.1 Hz
5.24 Hz
4.3
2.2
0.9
60 Hz
25 Hz
15.72 Hz
6.55 Hz
5.1
3.1
1.0
250 Hz
100 Hz
65.5 Hz
26.2 Hz
103
50
3.9
2.1
500 Hz
200 Hz
131 Hz
52.4 Hz
550
280
18
6
Table 18. Peak-to-Peak Resolution vs. Gain and Output Update Rate for AD7715-5 (Buffered Mode)
Filter First Notch and Output Data Rate
3 dB Frequency
Typical Peak-to-Peak Resolution in Bits
MCLK IN =
2.4576 MHz
1 MHz
2.4576 MHz
1 MHz
Gain = 1
Gain = 2
Gain = 32
Gain = 128
50 Hz
20 Hz
13.1 Hz
5.24 Hz
16
15
13
60 Hz
25 Hz
15.72 Hz
6.55 Hz
16
15
13
250 Hz
100 Hz
65.5 Hz
26.2 Hz
13
12
500 Hz
200 Hz
131 Hz
52.4 Hz
10
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