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參數(shù)資料
| 型號： | AD8609 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
| 中文描述： | 精密微功耗低噪聲CMOS軌對軌輸入/輸出運(yùn)算放大器 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 1294K |
| 代理商： | AD8609 |
AD8603/AD8607/AD8609
PROXIMITY SENSORS
Proximity sensors can be capacitive or inductive and are used in
a variety of applications. One of the most common applications
is liquid level sensing in tanks. This is particularly popular in
pharmaceutical environments where a tank must know when to
stop filling or mixing a given liquid. In aerospace applications,
these sensors detect the level of oxygen used to propel engines.
Whether in a combustible environment or not, capacitive
sensors generally use low voltage. The precision and low voltage
of the AD8603/AD8607/AD8609 make the parts an excellent
choice for such applications.
Rev. A | Page 13 of 16
COMPOSITE AMPLIFIERS
A composite amplifier can provide a very high gain in
applications where high closed-loop dc gains are needed. The
high gain achieved by the composite amplifier comes at the
expense of a loss in phase margin. Placing a small capacitor, C
F
,
in the feedback in parallel with R2 (Figure 45) improves the
phase margin. Picking C
F
= 50 pF yields a phase margin of
about 45° for the values shown in Figure 45.
A composite amplifier can be used to optimize dc and ac
characteristics. Figure 46 shows an example using the AD8603
and the AD8541. This circuit offers many advantages. The
bandwidth is increased substantially, and the input offset
voltage and noise of the AD8541 become insignificant since
they are divided by the high gain of the AD8603.
The circuit of Figure 46 offers a high bandwidth (nearly double
that of the AD8603), a high output current, and a very low
power consumption of less than 100 μA.
V
EE
V
CC
R1
1k
V
CC
V
EE
V
IN
99k
R2
AD8603
AD8541
V+
V
–
V+
V
–
0
R3
1k
R4
99k
U5
Figure 45. High Gain Composite Amplifier
R1
1k
1k
V+
V
–
V
–
V+
V
IN
100k
R2
AD8603
0
AD8541
100
C3
R4
R3
C2
V
CC
V
EE
V
CC
V
EE
Figure 46. Low Power Composite Amplifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD8609AR | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
| AD8609AR-REEL | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
| AD8609AR-REEL7 | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
| AD8609ARU | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
| AD8603AUJ-R2 | Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8609AR | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O ±2.5V/5V 14-Pin SOIC N 制造商:Analog Devices 功能描述:OP AMP QUAD PRECISION RRI/O 8609 |
| AD8609AR-REEL | 功能描述:IC OPAMP GP R-R CMOS QUAD 14SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| AD8609AR-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O ±2.5V/5V 14-Pin SOIC N T/R |
| AD8609ARU | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O ±2.5V/5V 14-Pin TSSOP 制造商:Analog Devices 功能描述:IC OP-AMP QUAD R/R |
| AD8609ARU-REEL | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O ±2.5V/5V 14-Pin TSSOP T/R |
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