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参数资料
| 型号： | AD736 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Low Cost, Low Power, True RMS-to-DC Converter |
| 中文描述： | 低成本，低功耗，真RMS - DC转换器 |
| 文件页数： | 5/8页 |
| 文件大小： | 218K |
| 代理商： | AD736 |
AD736
REV. C
–5–
Typical Characteristics–
Figure 10. Error vs. RMS Input
Voltage (Pin 2), Output Buffer Off-
set Is Adjusted To Zero
Figure 13. Pin 2 Input Bias Current
vs. Supply Voltage
CALCULAT ING SE T T LING T IME USING FIGURE 14
T he graph of Figure 14 may be used to closely approximate the
time required for the AD736 to settle when its input level is re-
duced in amplitude. T he
net time
required for the rms converter
to settle will be the
difference
between two times extracted from
the graph – the initial time minus the final settling time. As an
example, consider the following conditions: a 33
μ
F averaging
capacitor, an initial rms input level of 100 mV and a final (re-
duced) input level of 1 mV. From Figure 14, the initial settling
time (where the 100 mV line intersects the 33
μ
F line) is around
80 ms.
T he settling time corresponding to the new or final input level
of 1 mV is approximately 8 seconds. T herefore, the net time for
the circuit to settle to its new value will be 8 seconds minus
80 ms which is 7.92 seconds. Note that, because of the smooth
decay characteristic inherent with a capacitor/diode combina-
tion, this is the total settling time to the final value (i.e.,
not
the
settling time to 1%, 0.1%, etc., of final value). Also, this graph
provides the worst case settling time, since the AD736 will settle
very quickly with increasing input levels.
Figure 11. C
AV
vs. Frequency for
Specified Averaging Error
Figure 14. Settling Time vs. RMS
Input Level for Various
Values of C
AV
Figure 12. RMS Input Level vs.
Frequency for Specified Averag-
ing Error
Figure 15. Pin 2 Input Bias Cur-
rent vs. Temperature
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相关代理商/技术参数 |
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|---|---|
| AD736_12 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, Low Power, True RMS-to-DC Converter |
| AD7366 | 制造商:AD 制造商全称:Analog Devices 功能描述:True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-Channel SAR ADCs |
| AD7366_07 | 制造商:AD 制造商全称:Analog Devices 功能描述:True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-Channel SAR ADCs |
| AD7366-5 | 制造商:AD 制造商全称:Analog Devices 功能描述:True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-Channel SAR ADCs |
| AD7366-5ARUZ | 制造商:AD 制造商全称:Analog Devices 功能描述:True Bipolar Input, Dual 1us, 12-Bit, 2-Channel SAR ADC |
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