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| 型號(hào)： | AD8606ARMZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP R-R CMOS 10MHZ 8MSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | DigiTrim® |
| 放大器類型： | 通用 |
| 電路數(shù)： | 2 |
| 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： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 帶卷 (TR) |
Data Sheet
AD8605/AD8606/AD8608
Rev. N | Page 17 of 24
TOTAL NOISE INCLUDING SOURCE RESISTORS
The low input current noise and input bias current of the
AD860x make it the ideal amplifier for circuits with substantial
input source resistance, such as photodiodes. Input offset voltage
increases by less than 0.5 nV per 1 k of source resistance at
room temperature and increases to 10 nV at 85°C. The total
noise density of the circuit is
( )
S
n
TOTAL
n
TR
k
R
i
e
4
2
,
+
=
where:
en is the input voltage noise density of the AD860x.
in is the input current noise density of the AD860x.
RS is the source resistance at the noninverting terminal.
k is Boltzmann’s constant (1.38 × 1023 J/K).
T is the ambient temperature in Kelvin (T = 273 + °C).
For example, with RS = 10 k, the total voltage noise density is
roughly 15 nV/√Hz.
For RS < 3.9 k, en dominates and en,TOTAL ≈ en.
The current noise of the AD860x is so low that its total density
does not become a significant term unless RS is greater than 6 M.
The total equivalent rms noise over a specific bandwidth is
expressed as
(
) BW
e
E
TOTAL
n
,
=
where BW is the bandwidth in hertz.
Note that the previous analysis is valid for frequencies greater
than 100 Hz and assumes relatively flat noise, above 10 kHz. For
lower frequencies, flicker noise (1/f) must be considered.
CHANNEL SEPARATION
Channel separation, or inverse crosstalk, is a measure of the signal
feed from one amplifier (channel) to another on the same IC.
The AD8606 has a channel separation of greater than 160 dB
up to frequencies of 1 MHz, allowing the two amplifiers to
amplify ac signals independently in most applications.
CAPACITIVE LOAD DRIVE
The AD860x can drive large capacitive loads without oscillation.
Figure 48 shows the output of the AD8606 in response to a
200 mV input signal. In this case, the amplifier is configured
in positive unity gain, worst case for stability, while driving a
1000 pF load at its output. Driving larger capacitive loads in
unity gain can require the use of additional circuitry.
A snubber network, shown in Figure 49, helps reduce the signal
overshoot to a minimum and maintain stability. Although this
circuit does not recover the loss of bandwidth induced by large
capacitive loads, it greatly reduces the overshoot and ringing.
This method does not reduce the maximum output swing of the
amplifier.
CHANNE
L
SE
P
AR
A
TION
(
dB
)
FREQUENCY (Hz)
10M
1M
100k
10k
1k
100
100M
–20
0
–40
–60
–80
–100
–120
–140
–160
–180
02731-
046
Figure 47. Channel Separation vs. Frequency
TIME (10s/DIV)
VO
L
T
AG
E
(
100mV
/DI
V
)
02731-
047
VS = ±2.5V
AV = 1
RL = 10k
CL = 1000pF
Figure 48. AD8606 Capacitive Load Drive Without Snubber
RS
CS
RL
CL
V+
V–
4
2
3
8
1
AD8605
VIN
200mV
02731-
049
Figure 49. Snubber Network Configuration
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| AD8606ARMZ-REEL | 功能描述:IC OPAMP GP R-R CMOS 10MHZ 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 產(chǎn)品培訓(xùn)模塊:Differential Circuit Design Techniques for Communication Applications 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| AD8606ARMZ-REEL | 制造商:Analog Devices 功能描述:IC OP-AMP 10MHZ 5V/S MSOP-8 |
| AD8606ARN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Operational Amplifier |
| AD8606AR-REEL | 功能描述:IC OPAMP GP R-R CMOS 10MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| AD8606AR-REEL7 | 功能描述:IC OPAMP GP R-R CMOS 10MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
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