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參數(shù)資料
| 型號： | AD8515ART |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | 1.8 V Low Power CMOS Rail-to-Rail Input/Output Operational Amplifier |
| 中文描述： | OP-AMP, 8000 uV OFFSET-MAX, 5 MHz BAND WIDTH, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 242K |
| 代理商： | AD8515ART |
REV. B
AD8515
–13–
Wien Bridge Oscillator
The circuit in Figure 7 can be used to generate a sine wave, one
of the most fundamental waveforms. Known as a Wien Bridge
oscillator, it has the advantage of requiring only one low power
amplifier. This is an important consideration, especially for battery-
operated applications where power consumption is a critical
issue. To keep the equations simple, the resistor and capacitor
values used are kept equal. For the oscillation to happen, two
conditions have to be met. First, there should be a zero phase
shift from the input to the output, which will happen at the
oscillation frequency of
F
R
C
OSC
=
￥
1
2
10
10
p
Second, at this frequency, the ratio of VOUT to the voltage at
+input (Pin 3) has to be 3, which means that the ratio of
R11/R12 should be greater than 2.
AD8515
1
3
2
V–
V+
VCC
U10
C10
1nF
R13
1k
R11
2.05k
C9
1nF
R10
1k
R12
1k
VEE
Figure 7. Low Power Wien Bridge Oscillator
High frequency oscillators can be built with the AD8515 due to its
wide bandwidth. Using the values shown, an oscillation frequency of
130 kHz is created and is shown in Figure 8. If R11 is too low, the
oscillation might converge; if too large, the oscillation will diverge
until the output clips (V
S
=
±
2.5 V, F
OSC
= 130 kHz).
TIME (2 s/DIV)
0
0
0
0
0
0
V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 8. Output of Wien Bridge Oscillator
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| AD8517 | 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
| AD8517ART-REEL | 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
| AD8527 | 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
| AD8527AR | 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
| AD8527ARM-REEL | 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8515ART-R2 | 制造商:Analog Devices 功能描述:OP Amp Single GP R-R I/O 5V 5-Pin SOT-23 T/R 制造商:Rochester Electronics LLC 功能描述:SINGLE 1.8V CMOS OPERATIONAL AMPLIFIER - Bulk 制造商:Analog Devices 功能描述:OP AMP LOW POWER RRI/O SMD 8515 |
| AD8515ART-REEL | 功能描述:IC AMP GP R-R CMOS 5MHZ SOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
| AD8515ART-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Single GP R-R I/O 5V 5-Pin SOT-23 T/R 制造商:Analog Devices 功能描述:IC SM OP-AMP LOW POWER RRI/O |
| AD8515ARTZ | 制造商:Analog Devices 功能描述:OP AMP GP R-R CMOS 5MHZ SOT23-5 制造商:Analog Devices 功能描述:OP AMP, GP, R-R, CMOS, 5MHZ, SOT23-5 |
| AD8515ARTZ-R2 | 功能描述:IC AMP GP R-R CMOS 5MHZ SOT23-5 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
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