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參數(shù)資料
| 型號： | AD547 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | High Performance,BiFET Operational Amplifiers(高性能,BiFET運(yùn)算放大器) |
| 中文描述： | 高性能，BiFET運(yùn)算放大器（高性能，BiFET運(yùn)算放大器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 384K |
| 代理商： | AD547 |
AD542/AD544/AD547
REV. B
–10–
This particular log ratio circuit is free from the dynamic prob-
lems that plague many other log circuits. The –3 dB bandwidth
is 50 kHz over the top 3 decades, 100 nA to 100
μ
A, and de-
creases smoothly at lower input levels. This circuit needs no ad-
ditional frequency compensation for stable operation from
input current sources, such as photodiodes, that may have 100
pF of shunt capacitance. For larger input capacitances a 20 pF
integration capacitor around each amplifier will provide a
smoother frequency response.
This log ratio amplifier can be readily adjusted for optimum
accuracy by following this simple procedure. First, apply V1 =
V2 = –10.00 V and adjust “Balance” for V
OUT
= 0.00 V. Next
apply V1 = –10.00 V, V2 = –1.00 V and adjust gain for V
OUT
=
+1.00 V. Repeat this procedure until gain and balance readings
are within 2 mV of ideal values.
Figure 35. Low Drift Integrator and
Low Leakage Guarded Reset
Figure 34. Differentiator
Figure 36. Wien-Bridge
Oscillator–f
O
= 10 kHz
Figure 37. Capacitance
Multiplier
Figure 38. Long Interval
Timer–1,000 Seconds
Figure 39. Positive Peak Detector
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD547JH | 制造商:Rochester Electronics LLC 功能描述:ULTRA-LOW DRIFT OP AMP IC - Bulk 制造商:Analog Devices 功能描述: |
| AD547KH | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance, BiFET Operational Amplifiers |
| AD547KH/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| AD547LH | 制造商:Rochester Electronics LLC 功能描述:ULTRA-LOW DRIFT OP AMP IC - Bulk |
| AD547SCHIPS | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance, BiFET Operational Amplifiers |
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