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| 型號(hào)： | AD8605ART-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 11/24頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP R-R CMOS LN SOT23-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | DigiTrim® |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 5 V/µs |
| 增益帶寬積： | 10MHz |
| 電流 - 輸入偏壓： | 0.2pA |
| 電壓 - 輸入偏移： | 80µV |
| 電流 - 電源： | 1mA |
| 電流 - 輸出 / 通道： | 80mA |
| 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： | SC-74A，SOT-753 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-5 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AD8605ART-REEL7DKR |
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Data Sheet
AD8605/AD8606/AD8608
Rev. N | Page 19 of 24
I-V CONVERSION APPLICATIONS
PHOTODIODE PREAMPLIFIER APPLICATIONS
The low offset voltage and input current of the AD8605 make
it an excellent choice for photodiode applications. In addition,
the low voltage and current noise make the amplifier ideal for
application circuits with high sensitivity.
RD
ID
CD
50pF
AD8605
VOUT
PHOTODIODE
VOS
RF
10M
CF
10pF
02731-
051
Figure 52. Equivalent Circuit for Photodiode Preamp
The input bias current of the amplifier contributes an error
term that is proportional to the value of RF.
The offset voltage causes a dark current induced by the shunt
resistance of the Diode RD. These error terms are combined at
the output of the amplifier. The error voltage is written as
B
F
D
F
OS
O
I
R
V
E
+
+
=
1
Typically, RF is smaller than RD, thus RF/RD can be ignored.
At room temperature, the AD8605 has an input bias current of
0.2 pA and an offset voltage of 100 V. Typical values of RD are
in the range of 1 G.
For the circuit shown in Figure 52, the output error voltage is
approximately 100 V at room temperature, increasing to about
1 mV at 85°C.
The maximum achievable signal bandwidth is
F
t
MAX
C
R
f
π
2
=
where ft is the unity gain frequency of the amplifier.
AUDIO AND PDA APPLICATIONS
The low distortion and wide dynamic range of the AD860x
make it a great choice for audio and PDA applications,
including microphone amplification and line output buffering.
Figure 53 shows a typical application circuit for headphone/
line-out amplification.
R1 and R2 are used to bias the input voltage at half the supply,
which maximizes the signal bandwidth range. C1 and C2 are
used to ac couple the input signal. C1, R1, and R2 form a high-
pass filter whose corner frequency is 1/[2π(R1||R2)C1].
The high output current of the AD8606 allows it to drive heavy
resistive loads.
The circuit in Figure 53 is tested to drive a 16 headphone. The
THD + N is maintained at approximately 60 dB throughout the
audio range.
5V
4
2
3
8
1
HEADPHONES
5V
4
6
5
8
7
C1
1F
V1
500mV
1/2
AD8606
C3
100F
1/2
AD8606
C4
100F
C2
1F
V2
500mV
02731-
052
R1
20k
R2
20k
R7
20k
R8
20k
R4
20
R3
1k
R6
20
R5
1k
Figure 53. Single-Supply Headphone/Speaker Amplifier
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8605ARTZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers |
| AD8605ARTZ-R2 | 功能描述:IC OPAMP GP R-R CMOS LN SOT23-5 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°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) |
| AD8605ARTZ-R2 | 制造商:Analog Devices 功能描述:IC OP AMP SINGLE 10MHZ 5SOT23 |
| AD8605ARTZ-REE | 制造商:Analog Devices 功能描述: |
| AD8605ARTZ-REEL | 功能描述:IC OPAMP GP R-R CMOS LN SOT23-5 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 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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