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| 型號： | AD8542ARZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP R-R CMOS 1MHZ 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.92 V/µs |
| 增益帶寬積： | 1MHz |
| 電流 - 輸入偏壓： | 4pA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 45µA |
| 電流 - 輸出 / 通道： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
AD8541/AD8542/AD8544
Rev. G | Page 15 of 20
PHOTODIODE APPLICATION
The AD854x family has very high impedance with an input bias
current typically around 4 pA. This characteristic allows the
AD854x op amps to be used in photodiode applications and
other applications that require high input impedance. Note that
the AD854x has significant voltage offset that can be removed
by capacitive coupling or software calibration.
Figure 40 illustrates a photodiode or current measurement
application. The feedback resistor is limited to 10 MΩ to avoid
excessive output offset. In addition, a resistor is not needed on
the noninverting input to cancel bias current offset because the
bias current-related output offset is not significant when compared
to the voltage offset contribution. For best performance, follow the
standard high impedance layout techniques, which include the
following:
Shielding the circuit.
Cleaning the circuit board.
Putting a trace connected to the noninverting input around
the inverting input.
Using separate analog and digital power supplies.
AD8541
4
6
7
3
2
D
OR
V+
2.5VREF
C
100pF
R
10M
2.5VREF
VOUT
00
93
5-
0
39
Figure 40. High Input Impedance Application—Photodiode Amplifier
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8542ARZ-REEL7 | 功能描述:IC OPAMP GP R-R CMOS 1MHZ 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 特色產(chǎn)品:CMOS Operational Amplifier 標(biāo)準(zhǔn)包裝:2,500 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 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:1000µV 電流 - 電源:900µA 電流 - 輸出 / 通道:1mA 電壓 - 電源，單路/雙路(±):5 V ~ 14.5 V，±2.5 V ~ 7.25 V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-SOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1372 (CN2011-ZH PDF) 其它名稱:BD7562SF-E2TR |
| AD8544 | 制造商:AD 制造商全稱:Analog Devices 功能描述:General-Purpose CMOS Rail-to-Rail Amplifiers |
| AD8544AR | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 5.5V 14-Pin SOIC N 制造商:Analog Devices 功能描述:2.5V to 6V 4 1MHz IyAv 14SOIC Bulk 制造商:Analog Devices 功能描述:AMP QUAD LOW POWER RRI/O SMD 8544 |
| AD8544AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 5.5V 14-Pin SOIC N T/R |
| AD8544AR-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 5.5V 14-Pin SOIC N T/R 制造商:Analog Devices 功能描述:IC OP-AMP QUAD R/R |
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