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參數(shù)資料
| 型號(hào)： | AD542LH |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | High Performance, BiFET Operational Amplifiers |
| 中文描述： | OP-AMP, 500 uV OFFSET-MAX, 1 MHz BAND WIDTH, MBCY8 |
| 封裝： | HERMETICALLY SEALED, METAL CAN, TO-99, 8 PIN |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 374K |
| 代理商： | AD542LH |
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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| AD5432YRM-REEL | 制造商:Analog Devices 功能描述:DAC 1-CH R-2R 10-bit 10-Pin MSOP T/R 制造商:Analog Devices 功能描述:DAC 1CH R-2R 10-BIT 10MSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:10-IOUT DAC WITH SERIAL ITF I.C. - Tape and Reel |
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